Merge https://github.com/MarlinFirmware/Marlin into Bulgarian

Conflicts:
	Marlin/Configuration.h
	Marlin/configurator/config/Configuration.h
	Marlin/example_configurations/Felix/Configuration.h
	Marlin/example_configurations/Felix/Configuration_DUAL.h
	Marlin/example_configurations/Hephestos/Configuration.h
	Marlin/example_configurations/K8200/Configuration.h
	Marlin/example_configurations/SCARA/Configuration.h
	Marlin/example_configurations/WITBOX/Configuration.h
	Marlin/example_configurations/delta/generic/Configuration.h
	Marlin/example_configurations/delta/kossel_mini/Configuration.h
	Marlin/example_configurations/makibox/Configuration.h
	Marlin/example_configurations/tvrrug/Round2/Configuration.h

Conflicts with my Chinese implementation resolved.

Documentation/Compilation.md

   1. Install the latest non-beta arduino software IDE/toolset: http://www.arduino.cc/en/Main/Software
   2. Download the Marlin firmware
     - [Latest developement version](https://github.com/MarlinFirmware/Marlin/tree/Development)
-    - [Stable version](https://github.com/MarlinFirmware/Marlin/tree/Development)
+    - [Stable version]()
   3. In both cases use the "Download Zip" button on the right.
   4. Some boards require special files and/or libraries from the ArduinoAddons directory. Take a look at the dedicated [README](/ArduinoAddons/README.md) for details.
   5. Start the arduino IDE.
-  6. Select Tools -> Board -> Arduino Mega 2560    or your microcontroller
+  6. Select Tools -> Board -> Arduino Mega 2560 or your microcontroller
   7. Select the correct serial port in Tools ->Serial Port
   8. Open Marlin.pde or .ino
   9. Click the Verify/Compile button
   10. Click the Upload button. If all goes well the firmware is uploading
 
-That's ok.  Enjoy Silky Smooth Printing.
+That's ok.  Enjoy Silky Smooth Printing.

Documentation/GCodes.md

-# Implemented G Codes
+## Implemented G Codes
 
-## G Codes
+### Movement G and M Codes
+```
+G0   -> G1
+G1   - Coordinated Movement X Y Z E
+G2   - CW ARC
+G3   - CCW ARC
+G4   - Dwell S[seconds] or P[milliseconds]
+G92  - Set the "current position" to coordinates: X<xpos> Y<ypos> Z<zpos> E<epos>
+M0   - Wait for user, with optional prompt message (requires LCD controller)
+       M0 Click When Ready ; show "Click When Ready" until the button is pressed.
+M1   - Same as M0
+M400 - Finish all moves
+M999 - Restart after being stopped by error
+```
+### SD Card M Codes
+```
+M20  - List SD card
+M21  - Init SD card
+M22  - Release SD card
+M23  - Select SD file (M23 filename.g)
+M24  - Start/resume SD print
+M25  - Pause SD print
+M26  - Set SD position in bytes (M26 S12345)
+M27  - Report SD print status
+M28  - Start SD write (M28 filename.g)
+M29  - Stop SD write
+M30  - Delete file from SD (M30 filename.g)
+M31  - Output time since last M109 or SD card start to serial
+M32  - Select file and start SD print (Can be used _while_ printing from SD card files):
+       syntax "M32 /path/filename#", or "M32 S<startpos bytes> !filename#"
+       Call gcode file : "M32 P !filename#" and return to caller file after finishing (similar to #include).
+       The '#' is necessary when calling from within sd files, as it stops buffer prereading
+M540 - Enable/Disable "Stop SD Print on Endstop Hit" (req. ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED)
+       M540 S<0|1>
+M928 - Start SD logging (M928 filename.g) - ended by M29
+```
+### Hardware Control
+```
+M42  - Change pin status via gcode: P<pin> S<value>. If P is omitted the onboard LED pin will be used.
+       M42 P9 S1 ; set PIN 9 to 1. 
+M80  - Turn on Power Supply
+M81  - Turn off Power Supply
+M84  - Disable steppers until next move,
+       or use S<seconds> to specify an inactivity timeout, after which the steppers will be disabled.  S0 to disable the timeout.
+M85  - Set inactivity shutdown timer with parameter S<seconds>. Disable with "M85" or "M85 S0".
+M112 - Emergency stop. Requires hardware reset!!
+M226 - Wait for a pin to be in some state: P<pin number> S<pin state>
+```
+### Temperature M Codes
+```
+M104 - Set extruder target temp
+M105 - Read current temp
+M106 - Fan on
+M107 - Fan off
+M109 - Sxxx Wait for extruder current temp to reach target temp. Waits only when heating
+       Rxxx Wait for extruder current temp to reach target temp. Waits when heating and cooling
+       IF AUTOTEMP is enabled, S<mintemp> B<maxtemp> F<factor>. Exit autotemp by any M109 without F
+M140 - Set bed target temp
+M190 - Sxxx Wait for bed current temp to reach target temp. Waits only when heating
+       Rxxx Wait for bed current temp to reach target temp. Waits when heating and cooling
+M301 - Set PID parameters P I and D
+M302 - Allow cold extrudes, or set the minimum extrude S<temperature>.
+M303 - PID relay autotune S<temperature> sets the target temperature. (default target temperature = 150C)
+M304 - Set bed PID parameters P I and D
+```
+### Message M Codes
+```
+M114 - Output current position to serial port
+M115 - Capabilities string
+M117 - Display message text on the LCD
+M119 - Output Endstop status to serial port
+```
+### Endstops M Codes
+```
+M120 - Enable endstop detection
+M121 - Disable endstop detection
+```
+### Special Features M Codes
+```
+M126 - Solenoid Air Valve Open (BariCUDA support by jmil)
+M127 - Solenoid Air Valve Closed (BariCUDA vent to atmospheric pressure by jmil)
+M128 - EtoP Open (BariCUDA EtoP = electricity to air pressure transducer by jmil)
+M129 - EtoP Closed (BariCUDA EtoP = electricity to air pressure transducer by jmil)
+M150 - Set BlinkM Color: R<red> U<green> B<blue> via I2C. Range: 0-255
+M240 - Trigger a camera to take a photograph. (Add to your per-layer GCode.)
+M250 - Set LCD contrast: C<0-63>
+M280 - Set servo position absolute. P<servo index> S<angle or microseconds>
+M300 - Play beep sound S<frequency Hz> P<duration ms>
+M380 - Activate solenoid on active extruder
+M381 - Disable all solenoids
+M600 - Pause for filament change X<xpos> Y<ypos> Z<lift> E<initial retract> L<later retract for removal>
+```
+### Units and Measures G and M Codes
+```
+G90  - Use Absolute Coordinates
+G91  - Use Relative Coordinates
+M82  - Set E codes absolute (default)
+M83  - Set E codes relative while in Absolute Coordinates (G90) mode
+M92  - Set axis_steps_per_unit - same syntax as G92
+M200 - Set filament diameter and set E axis units to mm^3 (use S0 to set back to mm).: D<mm>
+M201 - Set max acceleration in units/s^2 for print moves (M201 X1000 Y1000)
+M202 - Set max acceleration in units/s^2 for travel moves (M202 X1000 Y1000) Unused in Marlin!!
+M203 - Set maximum feedrate that your machine can sustain (M203 X200 Y200 Z300 E10000) in mm/sec
+M204 - Set default acceleration: P for Printing moves, R for Retract only (no X, Y, Z) moves and T for Travel (non printing) moves (ex. M204 P800 T3000 R9000) in mm/sec^2
+M205 - Advanced settings: minimum travel speed S=while printing T=travel only, B=minimum segment time X=maximum xy jerk, Z=maximum Z jerk, E=maximum E jerk
+M206 - Set additional homing offset
+M218 - Set hotend offset (in mm): T<extruder_number> X<offset_on_X> Y<offset_on_Y>
+M220 - Set speed factor override percentage: S<factor in percent>
+M221 - Set extrude factor override percentage: S<factor in percent>
+```
+### Firmware Retraction G and M Codes
+```
+G10  - Retract filament according to settings of M207
+G11  - Retract recover filament according to settings of M208
+M207 - Set retract length S[positive mm] F[feedrate mm/min] Z[additional zlift/hop], stays in mm regardless of M200 setting
+M208 - Set recover=unretract length S[positive mm surplus to the M207 S*] F[feedrate mm/s]
+M209 - S<1=true/0=false> enable automatic retract detect if the slicer did not support G10/11: every normal extrude-only move will be classified as retract depending on the direction
+```
+### Z Probe G and M Codes
+```
+G28  - Home all Axis
+G29  - Detailed Z-Probe, probes the bed at 3 or more points. The printer must be homed with G28 before G29.
+G30  - Single Z Probe, probes bed at current XY location.
+G31  - Dock Z Probe sled (if enabled)
+G32  - Undock Z Probe sled (if enabled)
+M48  - Measure Z_Probe repeatability: P<points> X<xpos> Y<ypos> V<verbosity> E=engage L<legs of travel>
+       As with G29, the E flag causes the probe to stow after each probe.
+M401 - Lower Z-probe (if present)
+M402 - Raise Z-probe (if present)
+```
+### Filament Diameter M Codes
+```
+M404 - Set (or display) Nominal Filament Diameter in mm: [N<diameter>] (e.g., 3mm or 1.75mm)
+M405 - Turn on Filament Sensor extrusion control: [D<distance>] to set distance (in cm) from sensor to extruder
+M406 - Turn off Filament Sensor extrusion control
+M407 - Display measured Filament Diameter
+```
+### EEPROM Settings M Codes
+```
+M500 - Store parameters in EEPROM
+M501 - Read parameters from EEPROM (if you need reset them after you changed them temporarily).
+M502 - Revert to the default "factory settings". You still need to store them in EEPROM afterwards if you want to.
+M503 - Print the current settings (from memory not from EEPROM). Use S0 to leave off headings.
+```
+### Delta M Codes
+```
+M665 - Set Delta configurations: L<diagonal rod> R<delta radius> S<segments/s>
+M666 - Set Delta endstop adjustment: X<x-adjustment> Y<y-adjustment> Z<z-adjustment>
+M605 - Set dual x-carriage movement mode: S<mode> [ X<duplication x-offset> R<duplication temp offset> ]
+```
+### Stepper Driver M Codes
+```
+M17  - Enable/Power all stepper motors
+M18  - Disable all stepper motors. (same as M84)
+M907 - Set digital trimpot motor current using axis codes.
+M908 - Control digital trimpot directly.
+M350 - Set microstepping mode.
+M351 - Toggle MS1 MS2 pins directly.
+```
+### SCARA M-Codes
+__May change to suit future G-code standards__
+```
+M360 - SCARA calibration: Move to cal-position ThetaA (0 deg calibration)
+M361 - SCARA calibration: Move to cal-position ThetaB (90 deg calibration - steps per degree)
+M362 - SCARA calibration: Move to cal-position PsiA (0 deg calibration)
+M363 - SCARA calibration: Move to cal-position PsiB (90 deg calibration - steps per degree)
+M364 - SCARA calibration: Move to cal-position PSIC (90 deg to Theta calibration position)
+M365 - SCARA calibration: Scaling factor, X, Y, Z axis
+```
 
-*  G0  -> G1
-*  G1  - Coordinated Movement X Y Z E
-*  G2  - CW ARC
-*  G3  - CCW ARC
-*  G4  - Dwell S[seconds] or P[milliseconds]
-*  G10 - retract filament according to settings of M207
-*  G11 - retract recover filament according to settings of M208
-*  G28 - Home all Axis
-*  G29 - Detailed Z-Probe, probes the bed at 3 points.  You must be at the home position for this to work correctly.
-*  G30 - Single Z Probe, probes bed at current XY location.
-*  G31 - Dock Z Probe sled (if enabled)
-*  G32 - Undock Z Probe sled (if enabled)
-*  G90 - Use Absolute Coordinates
-*  G91 - Use Relative Coordinates
-*  G92 - Set current position to cordinates given
-
-## M Codes
-*  M0   - Unconditional stop - Wait for user to press a button on the LCD (Only if ULTRA_LCD is enabled)
-*  M1   - Same as M0
-*  M17  - Enable/Power all stepper motors
-*  M18  - Disable all stepper motors; same as M84
-*  M20  - List SD card
-*  M21  - Init SD card
-*  M22  - Release SD card
-*  M23  - Select SD file (M23 filename.g)
-*  M24  - Start/resume SD print
-*  M25  - Pause SD print
-*  M26  - Set SD position in bytes (M26 S12345)
-*  M27  - Report SD print status
-*  M28  - Start SD write (M28 filename.g)
-*  M29  - Stop SD write
-*  M30  - Delete file from SD (M30 filename.g)
-*  M31  - Output time since last M109 or SD card start to serial
-*  M32  - Select file and start SD print (Can be used when printing from SD card)
-*  M42  - Change pin status via gcode Use M42 Px Sy to set pin x to value y, when omitting Px the onboard led will be used.
-*  M80  - Turn on Power Supply
-*  M81  - Turn off Power Supply
-*  M82  - Set E codes absolute (default)
-*  M83  - Set E codes relative while in Absolute Coordinates (G90) mode
-*  M84  - Disable steppers until next move, or use S[seconds] to specify an inactivity timeout, after which the steppers will be disabled.  S0 to disable the timeout.
-*  M85  - Set inactivity shutdown timer with parameter S[seconds]. To disable set zero (default)
-*  M92  - Set axis_steps_per_unit - same syntax as G92
-*  M104 - Set extruder target temp
-*  M105 - Read current temp
-*  M106 - Fan on
-*  M107 - Fan off
-*  M109 - Sxxx Wait for extruder current temp to reach target temp. Waits only when heating
-*         Rxxx Wait for extruder current temp to reach target temp. Waits when heating and cooling
-*  M112 - Emergency stop
-*  M114 - Output current position to serial port
-*  M115 - Capabilities string
-*  M117 - display message
-*  M119 - Output Endstop status to serial port
-*  M126 - Solenoid Air Valve Open (BariCUDA support by jmil)
-*  M127 - Solenoid Air Valve Closed (BariCUDA vent to atmospheric pressure by jmil)
-*  M128 - EtoP Open (BariCUDA EtoP = electricity to air pressure transducer by jmil)
-*  M129 - EtoP Closed (BariCUDA EtoP = electricity to air pressure transducer by jmil)
-*  M140 - Set bed target temp
-*  M190 - Sxxx Wait for bed current temp to reach target temp. Waits only when heating
-*         Rxxx Wait for bed current temp to reach target temp. Waits when heating and cooling
-*  M200 - D[millimeters]- set filament diameter and set E axis units to cubic millimeters (use S0 to set back to millimeters).
-*  M201 - Set max acceleration in units/s^2 for print moves (M201 X1000 Y1000)
-*  M202 - Set max acceleration in units/s^2 for travel moves (M202 X1000 Y1000) Unused in Marlin!!
-*  M203 - Set maximum feedrate that your machine can sustain (M203 X200 Y200 Z300 E10000) in mm/sec
-*  M204 - Set default acceleration: P for Printing moves, R for Retract only (no X, Y, Z) moves and T for Travel (non printing) moves (ex. M204 P800 T3000 R9000) in mm/sec^2
-*  M205 - advanced settings:  minimum travel speed S=while printing T=travel only,  B=minimum segment time X= maximum xy jerk, Z=maximum Z jerk, E=maximum E jerk
-*  M206 - set additional homing offset
-*  M207 - set retract length S[positive mm] F[feedrate mm/min] Z[additional zlift/hop], stays in mm regardless of M200 setting
-*  M208 - set recover=unretract length S[positive mm surplus to the M207 S*] F[feedrate mm/min]
-*  M209 - S[1=true/0=false] enable automatic retract detect if the slicer did not support G10/11: every normal extrude-only move will be classified as retract depending on the direction.
-*  M218 - set hotend offset (in mm): T[extruder_number] X[offset_on_X] Y[offset_on_Y]
-*  M220 - S[factor in percent] - set speed factor override percentage
-*  M221 - S[factor in percent] - set extrude factor override percentage
-*  M240 - Trigger a camera to take a photograph
-*  M280 - Position an RC Servo P[index] S[angle/microseconds], ommit S to report back current angle
-*  M300 - Play beep sound S[frequency Hz] P[duration ms]
-*  M301 - Set PID parameters P I and D
-*  M302 - Allow cold extrudes
-*  M303 - PID relay autotune S[temperature] sets the target temperature. (default target temperature = 150C)
-*  M304 - Set bed PID parameters P I and D
-*  M350 - Set microstepping mode.
-*  M351 - Toggle MS1 MS2 pins directly.
-*  M400 - Finish all moves
-*  M401 - Lower z-probe if present
-*  M402 - Raise z-probe if present
-*  M404 - N[dia in mm] Enter the nominal filament width (3mm, 1.75mm) or will display nominal filament width without parameters
-*  M405 - Turn on Filament Sensor extrusion control.  Optional D[delay in cm] to set delay in centimeters between sensor and extruder
-*  M406 - Turn off Filament Sensor extrusion control
-*  M407 - Displays measured filament diameter
-*  M500 - stores paramters in EEPROM
-*  M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
-*  M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-*  M503 - print the current settings (from memory not from EEPROM)
-*  M540 - Use S[0|1] to enable or disable the stop SD card print on endstop hit (requires ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED)
-*  M600 - Pause for filament change X[pos] Y[pos] Z[relative lift] E[initial retract] L[later retract distance for removal]
-*  M907 - Set digital trimpot motor current using axis codes.
-*  M908 - Control digital trimpot directly.
-*  M928 - Start SD logging (M928 filename.g) - ended by M29
-*  M999 - Restart after being stopped by error
-
-# Comments
+## Comments
 
 Comments start at a `;` (semicolon) and end with the end of the line:
 
 
     M117 backslash: \\;and a comment
 
-Please note that hosts should strip any comments before sending GCODE to the printer in order to save bandwidth.
+Please note that hosts should strip any comments before sending GCODE to the printer in order to save bandwidth.

Documentation/LCDLanguageFont.md

   * nl    Dutch
   * ca    Catalan
   * eu    Basque-Euskera
+  * cn    Chinese
+  * jp    Japanese (Katakana)
 
-  and recently on [Thingiverse](http://www.thingiverse.com/) a new port to
-  * jp    [Japanese](http://www.thingiverse.com/thing:664397)
-
- appeared.
 
 ## The Problem
   All of this languages, except the English, normally use extended symbol sets, not contained in US-ASCII.
 
   You'll find all translatable strings in 'language_en.h'. Please don't translate any strings from 'language.h', this may break the serial protocol.
 
+  For information about fonts see: Marlin\fonts\README.fonts
+
+
 ## User Instructions
    Define your hardware and the wanted language in 'Configuration.h'.
    To find out what charset your hardware is, define language 'test' and compile. In the menu you will see two lines from the upper half of the charset.

Marlin/Conditionals.h

      #define NEWPANEL
   #endif
 
-
   #ifdef ULTIPANEL
     #define NEWPANEL  //enable this if you have a click-encoder panel
     #define SDSUPPORT
     #endif
   #else //no panel but just LCD
     #ifdef ULTRA_LCD
-    #ifdef DOGLCD // Change number of lines to match the 128x64 graphics display
-      #define LCD_WIDTH 22
-      #define LCD_HEIGHT 5
-    #else
-      #define LCD_WIDTH 16
-      #define LCD_HEIGHT 2
-    #endif
+      #ifdef DOGLCD // Change number of lines to match the 128x64 graphics display
+        #define LCD_WIDTH 22
+        #define LCD_HEIGHT 5
+      #else
+        #define LCD_WIDTH 16
+        #define LCD_HEIGHT 2
+      #endif
     #endif
   #endif
 
+  #ifdef DOGLCD
+    /* Custom characters defined in font font_6x10_marlin_symbols */
+    // \x00 intentionally skipped to avoid problems in strings
+    #define LCD_STR_REFRESH     "\x01"
+    #define LCD_STR_FOLDER      "\x02"
+    #define LCD_STR_ARROW_RIGHT "\x03"
+    #define LCD_STR_UPLEVEL     "\x04"
+    #define LCD_STR_CLOCK       "\x05"
+    #define LCD_STR_FEEDRATE    "\x06"
+    #define LCD_STR_BEDTEMP     "\x07"
+    #define LCD_STR_THERMOMETER "\x08"
+    #define LCD_STR_DEGREE      "\x09"
+
+    #define LCD_STR_SPECIAL_MAX '\x09'
+    // Maximum here is 0x1f because 0x20 is ' ' (space) and the normal charsets begin.
+    // Better stay below 0x10 because DISPLAY_CHARSET_HD44780_WESTERN begins here.
+  #else
+    /* Custom characters defined in the first 8 characters of the LCD */
+    #define LCD_STR_BEDTEMP     "\x00"  // this will have 'unexpected' results when used in a string!
+    #define LCD_STR_DEGREE      "\x01"
+    #define LCD_STR_THERMOMETER "\x02"
+    #define LCD_STR_UPLEVEL     "\x03"
+    #define LCD_STR_REFRESH     "\x04"
+    #define LCD_STR_FOLDER      "\x05"
+    #define LCD_STR_FEEDRATE    "\x06"
+    #define LCD_STR_CLOCK       "\x07"
+    #define LCD_STR_ARROW_RIGHT ">"  /* from the default character set */
+  #endif
+
   /**
    * Default LCD contrast for dogm-like LCD displays
    */
     #define DEFAULT_LCD_CONTRAST 32
   #endif
 
+  #ifdef DOGLCD
+    #define HAS_LCD_CONTRAST
+    #ifdef U8GLIB_ST7920
+      #undef HAS_LCD_CONTRAST
+    #endif
+  #endif
+
 #else // CONFIGURATION_LCD
 
   #define CONDITIONALS_H

Marlin/Configuration.h

 // startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
 // build by the user have been successfully uploaded into firmware.
 #define STRING_VERSION "1.0.3 dev"
-#define STRING_URL "reprap.org"
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
 #define STRING_CONFIG_H_AUTHOR "(none, default config)" // Who made the changes.
 #define STRING_SPLASH_LINE1 "v" STRING_VERSION // will be shown during bootup in line 1
   #define MOTHERBOARD BOARD_RAMPS_13_EFB
 #endif
 
-// Define this to set a custom name for your generic Mendel,
-// #define CUSTOM_MENDEL_NAME "This Mendel"
+// Optional custom name for your RepStrap or other custom machine
+// Displayed in the LCD "Ready" message
+// #define CUSTOM_MACHINE_NAME "3D Printer"
 
 // Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
 // You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)
 #define E_ENABLE_ON 0 // For all extruders
 
 // Disables axis when it's not being used.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
 //#define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
 
 //===========================================================================
-//============================ Manual Bed Leveling ==========================
+//============================ Mesh Bed Leveling ============================
 //===========================================================================
 
 // #define MANUAL_BED_LEVELING  // Add display menu option for bed leveling
 // @section lcd
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
 //#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
-//#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
-                                               // 0 to disable buzzer feedback  
-
+//#define LCD_FEEDBACK_FREQUENCY_HZ 1000         // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
+                                                 // 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
 // http://reprap.org/wiki/PanelOne
 //#define PANEL_ONE
 // Uncomment below to enable
 //#define FILAMENT_SENSOR
 
-#define FILAMENT_SENSOR_EXTRUDER_NUM	0  //The number of the extruder that has the filament sensor (0,1,2)
-#define MEASUREMENT_DELAY_CM			14  //measurement delay in cm.  This is the distance from filament sensor to middle of barrel
+#define FILAMENT_SENSOR_EXTRUDER_NUM 0   //The number of the extruder that has the filament sensor (0,1,2)
+#define MEASUREMENT_DELAY_CM        14   //measurement delay in cm.  This is the distance from filament sensor to middle of barrel
 
-#define DEFAULT_NOMINAL_FILAMENT_DIA  3.0  //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
-#define MEASURED_UPPER_LIMIT          3.30  //upper limit factor used for sensor reading validation in mm
-#define MEASURED_LOWER_LIMIT          1.90  //lower limit factor for sensor reading validation in mm
-#define MAX_MEASUREMENT_DELAY			20  //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
+#define DEFAULT_NOMINAL_FILAMENT_DIA 3.0 //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software.  Used for sensor reading validation
+#define MEASURED_UPPER_LIMIT         3.3 //upper limit factor used for sensor reading validation in mm
+#define MEASURED_LOWER_LIMIT         1.9 //lower limit factor for sensor reading validation in mm
+#define MAX_MEASUREMENT_DELAY       20   //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
 #define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially

Marlin/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again
 //#define HEATERS_PARALLEL
 
 //===========================================================================
-//=============================Buffers           ============================
+//================================= Buffers =================================
 //===========================================================================
 
 // @section hidden

Marlin/Makefile

 CXXSRC = WMath.cpp WString.cpp Print.cpp Marlin_main.cpp	\
 	MarlinSerial.cpp Sd2Card.cpp SdBaseFile.cpp SdFatUtil.cpp	\
 	SdFile.cpp SdVolume.cpp motion_control.cpp planner.cpp		\
-	stepper.cpp temperature.cpp cardreader.cpp ConfigurationStore.cpp \
-	watchdog.cpp SPI.cpp Servo.cpp Tone.cpp ultralcd.cpp digipot_mcp4451.cpp \
+	stepper.cpp temperature.cpp cardreader.cpp configuration_store.cpp \
+	watchdog.cpp SPI.cpp servo.cpp Tone.cpp ultralcd.cpp digipot_mcp4451.cpp \
 	vector_3.cpp qr_solve.cpp
 ifeq ($(LIQUID_TWI2), 0)
 CXXSRC += LiquidCrystal.cpp

Marlin/Marlin.h

 #define TEST(n,b) (((n)&BIT(b))!=0)
 #define RADIANS(d) ((d)*M_PI/180.0)
 #define DEGREES(r) ((d)*180.0/M_PI)
+#define NOLESS(v,n) do{ if (v < n) v = n; }while(0)
+#define NOMORE(v,n) do{ if (v > n) v = n; }while(0)
+
+typedef unsigned long millis_t;
 
 // Arduino < 1.0.0 does not define this, so we need to do it ourselves
 #ifndef analogInputToDigitalPin
   void filrunout();
 #endif
 
+/**
+ * Debug flags - not yet widely applied
+ */
+enum DebugFlags {
+  DEBUG_ECHO          = BIT(0),
+  DEBUG_INFO          = BIT(1),
+  DEBUG_ERRORS        = BIT(2),
+  DEBUG_DRYRUN        = BIT(3),
+  DEBUG_COMMUNICATION = BIT(4)
+};
+extern uint8_t marlin_debug_flags;
+
 extern bool Running;
 inline bool IsRunning() { return  Running; }
 inline bool IsStopped() { return !Running; }
 
-bool enquecommand(const char *cmd); //put a single ASCII command at the end of the current buffer or return false when it is full
-void enquecommands_P(const char *cmd); //put one or many ASCII commands at the end of the current buffer, read from flash
+bool enqueuecommand(const char *cmd); //put a single ASCII command at the end of the current buffer or return false when it is full
+void enqueuecommands_P(const char *cmd); //put one or many ASCII commands at the end of the current buffer, read from flash
 
 void prepare_arc_move(char isclockwise);
 void clamp_to_software_endstops(float target[3]);
 
-extern unsigned long previous_millis_cmd;
-inline void refresh_cmd_timeout() { previous_millis_cmd = millis(); }
+extern millis_t previous_cmd_ms;
+inline void refresh_cmd_timeout() { previous_cmd_ms = millis(); }
 
 #ifdef FAST_PWM_FAN
   void setPwmFrequency(uint8_t pin, int val);
 
 extern float homing_feedrate[];
 extern bool axis_relative_modes[];
-extern int feedmultiply;
+extern int feedrate_multiplier;
 extern bool volumetric_enabled;
 extern int extruder_multiply[EXTRUDERS]; // sets extrude multiply factor (in percent) for each extruder individually
 extern float filament_size[EXTRUDERS]; // cross-sectional area of filament (in millimeters), typically around 1.75 or 2.85, 0 disables the volumetric calculations for the extruder.
   extern float zprobe_zoffset;
 #endif
 
+#ifdef PREVENT_DANGEROUS_EXTRUDE
+  extern float extrude_min_temp;
+#endif
+
 extern int fanSpeed;
 
 #ifdef BARICUDA
   extern float retract_recover_length, retract_recover_length_swap, retract_recover_feedrate;
 #endif
 
-extern unsigned long starttime;
-extern unsigned long stoptime;
+extern millis_t print_job_start_ms;
+extern millis_t print_job_stop_ms;
 
 // Handling multiple extruders pins
 extern uint8_t active_extruder;

Marlin/SanityCheck.h

   /**
    * Required LCD language
    */
-  #if !defined(DOGLCD) && defined(ULTRA_LCD) && !defined(DISPLAY_CHARSET_HD44780_JAPAN) && !defined(DISPLAY_CHARSET_HD44780_WESTERN)
-    #error You must enable either DISPLAY_CHARSET_HD44780_JAPAN or DISPLAY_CHARSET_HD44780_WESTERN for your LCD controller.
+  #if !defined(DOGLCD) && defined(ULTRA_LCD) && !defined(DISPLAY_CHARSET_HD44780_JAPAN) && !defined(DISPLAY_CHARSET_HD44780_WESTERN)&& !defined(DISPLAY_CHARSET_HD44780_CYRILLIC)
+    #error You must enable either DISPLAY_CHARSET_HD44780_JAPAN or DISPLAY_CHARSET_HD44780_WESTERN  or DISPLAY_CHARSET_HD44780_CYRILLIC for your LCD controller.
   #endif
 
   /**
     #ifdef ENABLE_AUTO_BED_LEVELING
       #error Select ENABLE_AUTO_BED_LEVELING or MESH_BED_LEVELING, not both
     #endif
+    #if MESH_NUM_X_POINTS > 7 || MESH_NUM_Y_POINTS > 7
+      #error MESH_NUM_X_POINTS and MESH_NUM_Y_POINTS need to be less than 8
+    #endif
   #endif
 
   /**
         #define Y_PROBE_ERROR
       #endif
       #ifdef Y_PROBE_ERROR
-        #error The Y axis probing range is to small to fit all the points defined in AUTO_BED_LEVELING_GRID_POINTS
+        #error The Y axis probing range is too small to fit all the points defined in AUTO_BED_LEVELING_GRID_POINTS
       #endif
 
       #undef PROBE_SIZE_X

Marlin/Servo.cpp

 /*
- Servo.cpp - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
+ servo.cpp - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
  Copyright (c) 2009 Michael Margolis.  All right reserved.
 
  This library is free software; you can redistribute it and/or

Marlin/Servo.h

 /*
-  Servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
+  servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
   Copyright (c) 2009 Michael Margolis.  All right reserved.
 
   This library is free software; you can redistribute it and/or
    detach()    - Stops an attached servos from pulsing its i/o pin.
  */
 
-#ifndef Servo_h
-#define Servo_h
+#ifndef servo_h
+#define servo_h
 
 #include <inttypes.h>
 

Marlin/BlinkM.cpp → Marlin/blinkm.cpp

 /*
-  BlinkM.cpp - Library for controlling a BlinkM over i2c
+  blinkm.cpp - Library for controlling a BlinkM over i2c
   Created by Tim Koster, August 21 2013.
 */
 #include "Marlin.h"
 #ifdef BLINKM
 
-#include "BlinkM.h"
+#include "blinkm.h"
 
 void SendColors(byte red, byte grn, byte blu) {
   Wire.begin(); 

Marlin/BlinkM.h → Marlin/blinkm.h

 /*
-  BlinkM.h
+  blinkm.h
   Library header file for BlinkM library
  */
 #if ARDUINO >= 100

Marlin/cardreader.cpp

     OUT_WRITE(SDPOWER, HIGH);
   #endif //SDPOWER
 
-  autostart_atmillis = millis() + 5000;
+  next_autostart_ms = millis() + 5000;
 }
 
 char *createFilename(char *buffer, const dir_t &p) { //buffer > 12characters
 }
 
 void CardReader::checkautostart(bool force) {
-  if (!force && (!autostart_stilltocheck || autostart_atmillis < millis()))
+  if (!force && (!autostart_stilltocheck || next_autostart_ms < millis()))
     return;
 
   autostart_stilltocheck = false;
     if (p.name[9] != '~' && strncmp((char*)p.name, autoname, 5) == 0) {
       char cmd[30];
       sprintf_P(cmd, PSTR("M23 %s"), autoname);
-      enquecommand(cmd);
-      enquecommands_P(PSTR("M24"));
+      enqueuecommand(cmd);
+      enqueuecommands_P(PSTR("M24"));
       found = true;
     }
   }
     sdprinting = false;
     if (SD_FINISHED_STEPPERRELEASE) {
       //finishAndDisableSteppers();
-      enquecommands_P(PSTR(SD_FINISHED_RELEASECOMMAND));
+      enqueuecommands_P(PSTR(SD_FINISHED_RELEASECOMMAND));
     }
     autotempShutdown();
   }

Marlin/cardreader.h

   uint32_t filespos[SD_PROCEDURE_DEPTH];
   char filenames[SD_PROCEDURE_DEPTH][MAXPATHNAMELENGTH];
   uint32_t filesize;
-  unsigned long autostart_atmillis;
+  millis_t next_autostart_ms;
   uint32_t sdpos;
 
   bool autostart_stilltocheck; //the sd start is delayed, because otherwise the serial cannot answer fast enought to make contact with the hostsoftware.

Marlin/ConfigurationStore.cpp → Marlin/configuration_store.cpp

 /**
- * ConfigurationStore.cpp
+ * configuration_store.cpp
  *
  * Configuration and EEPROM storage
  *
  * V19 EEPROM Layout:
  *
  *  ver
- *  axis_steps_per_unit (x4)
- *  max_feedrate (x4)
- *  max_acceleration_units_per_sq_second (x4)
- *  acceleration
- *  retract_acceleration
- *  travel_acceleration
- *  minimumfeedrate
- *  mintravelfeedrate
- *  minsegmenttime
- *  max_xy_jerk
- *  max_z_jerk
- *  max_e_jerk
- *  home_offset (x3)
+ *  M92 XYZE  axis_steps_per_unit (x4)
+ *  M203 XYZE max_feedrate (x4)
+ *  M201 XYZE max_acceleration_units_per_sq_second (x4)
+ *  M204 P    acceleration
+ *  M204 R    retract_acceleration
+ *  M204 T    travel_acceleration
+ *  M205 S    minimumfeedrate
+ *  M205 T    mintravelfeedrate
+ *  M205 B    minsegmenttime
+ *  M205 X    max_xy_jerk
+ *  M205 Z    max_z_jerk
+ *  M205 E    max_e_jerk
+ *  M206 XYZ  home_offset (x3)
  *
  * Mesh bed leveling:
- *  active
- *  mesh_num_x
- *  mesh_num_y
- *  z_values[][]
- *  zprobe_zoffset
+ *  M420 S    active
+ *            mesh_num_x (set in firmware)
+ *            mesh_num_y (set in firmware)
+ *  M421 XYZ  z_values[][]
+ *  M851      zprobe_zoffset
  *
  * DELTA:
- *  endstop_adj (x3)
- *  delta_radius
- *  delta_diagonal_rod
- *  delta_segments_per_second
+ *  M666 XYZ  endstop_adj (x3)
+ *  M665 R    delta_radius
+ *  M665 L    delta_diagonal_rod
+ *  M665 S    delta_segments_per_second
  *
  * ULTIPANEL:
- *  plaPreheatHotendTemp
- *  plaPreheatHPBTemp
- *  plaPreheatFanSpeed
- *  absPreheatHotendTemp
- *  absPreheatHPBTemp
- *  absPreheatFanSpeed
+ *  M145 S0 H plaPreheatHotendTemp
+ *  M145 S0 B plaPreheatHPBTemp
+ *  M145 S0 F plaPreheatFanSpeed
+ *  M145 S1 H absPreheatHotendTemp
+ *  M145 S1 B absPreheatHPBTemp
+ *  M145 S1 F absPreheatFanSpeed
  *
  * PIDTEMP:
- *  Kp[0], Ki[0], Kd[0], Kc[0]
- *  Kp[1], Ki[1], Kd[1], Kc[1]
- *  Kp[2], Ki[2], Kd[2], Kc[2]
- *  Kp[3], Ki[3], Kd[3], Kc[3]
+ *  M301 E0 PIDC  Kp[0], Ki[0], Kd[0], Kc[0]
+ *  M301 E1 PIDC  Kp[1], Ki[1], Kd[1], Kc[1]
+ *  M301 E2 PIDC  Kp[2], Ki[2], Kd[2], Kc[2]
+ *  M301 E3 PIDC  Kp[3], Ki[3], Kd[3], Kc[3]
  *
  * PIDTEMPBED:
- *  bedKp, bedKi, bedKd
+ *  M304 PID  bedKp, bedKi, bedKd
  *
  * DOGLCD:
- *  lcd_contrast
+ *  M250 C    lcd_contrast
  *
  * SCARA:
- *  axis_scaling (x3)
+ *  M365 XYZ  axis_scaling (x3)
  *
  * FWRETRACT:
- *  autoretract_enabled
- *  retract_length
- *  retract_length_swap
- *  retract_feedrate
- *  retract_zlift
- *  retract_recover_length
- *  retract_recover_length_swap
- *  retract_recover_feedrate
+ *  M209 S    autoretract_enabled
+ *  M207 S    retract_length
+ *  M207 W    retract_length_swap
+ *  M207 F    retract_feedrate
+ *  M207 Z    retract_zlift
+ *  M208 S    retract_recover_length
+ *  M208 W    retract_recover_length_swap
+ *  M208 F    retract_recover_feedrate
  *
- *  volumetric_enabled
+ *  M200 D    volumetric_enabled (D>0 makes this enabled)
  *
- *  filament_size (x4)
+ *  M200 T D  filament_size (x4) (T0..3)
  *
- * Z_DUAL_ENDSTOPS
- *  z_endstop_adj
+ * Z_DUAL_ENDSTOPS:
+ *  M666 Z    z_endstop_adj
  *
  */
 #include "Marlin.h"
 #include "planner.h"
 #include "temperature.h"
 #include "ultralcd.h"
-#include "ConfigurationStore.h"
+#include "configuration_store.h"
 
 #ifdef MESH_BED_LEVELING
-   #include "mesh_bed_leveling.h"
-#endif  // MESH_BED_LEVELING
+  #include "mesh_bed_leveling.h"
+#endif
 
 void _EEPROM_writeData(int &pos, uint8_t* value, uint8_t size) {
   uint8_t c;
 #define EEPROM_WRITE_VAR(pos, value) _EEPROM_writeData(pos, (uint8_t*)&value, sizeof(value))
 #define EEPROM_READ_VAR(pos, value) _EEPROM_readData(pos, (uint8_t*)&value, sizeof(value))
 
-//======================================================================================
+/**
+ * Store Configuration Settings - M500
+ */
 
 #define DUMMY_PID_VALUE 3000.0f
 
     EEPROM_WRITE_VAR(i, mesh_num_x);
     EEPROM_WRITE_VAR(i, mesh_num_y);
     dummy = 0.0f;
-    for (int q=0; q<mesh_num_x*mesh_num_y; q++) {
-      EEPROM_WRITE_VAR(i, dummy);
-    }
+    for (int q=0; q<mesh_num_x*mesh_num_y; q++) EEPROM_WRITE_VAR(i, dummy);
   #endif // MESH_BED_LEVELING
 
   #ifndef ENABLE_AUTO_BED_LEVELING
   EEPROM_WRITE_VAR(i, bedKi);
   EEPROM_WRITE_VAR(i, bedKd);
 
-  #ifndef DOGLCD
+  #ifndef HAS_LCD_CONTRAST
     int lcd_contrast = 32;
   #endif
   EEPROM_WRITE_VAR(i, lcd_contrast);
   SERIAL_ECHOLNPGM(" bytes)");
 }
 
+/**
+ * Retrieve Configuration Settings - M501
+ */
+
 void Config_RetrieveSettings() {
 
   int i = EEPROM_OFFSET;
     EEPROM_READ_VAR(i, max_e_jerk);
     EEPROM_READ_VAR(i, home_offset);
 
-    uint8_t mesh_num_x = 0;
-    uint8_t mesh_num_y = 0;
+    uint8_t dummy_uint8 = 0, mesh_num_x = 0, mesh_num_y = 0;
+    EEPROM_READ_VAR(i, dummy_uint8);
+    EEPROM_READ_VAR(i, mesh_num_x);
+    EEPROM_READ_VAR(i, mesh_num_y);
     #ifdef MESH_BED_LEVELING
-      EEPROM_READ_VAR(i, mbl.active);
-      EEPROM_READ_VAR(i, mesh_num_x);
-      EEPROM_READ_VAR(i, mesh_num_y);
-      if (mesh_num_x != MESH_NUM_X_POINTS ||
-          mesh_num_y != MESH_NUM_Y_POINTS) {
-        mbl.reset();
-        for (int q=0; q<mesh_num_x*mesh_num_y; q++) {
-          EEPROM_READ_VAR(i, dummy);
-        }
-      } else {
+      mbl.active = dummy_uint8;
+      if (mesh_num_x == MESH_NUM_X_POINTS && mesh_num_y == MESH_NUM_Y_POINTS) {
         EEPROM_READ_VAR(i, mbl.z_values);
+      } else {
+        mbl.reset();
+        for (int q = 0; q < mesh_num_x * mesh_num_y; q++) EEPROM_READ_VAR(i, dummy);
       }
     #else
-      uint8_t dummy_uint8 = 0;
-      EEPROM_READ_VAR(i, dummy_uint8);
-      EEPROM_READ_VAR(i, mesh_num_x);
-      EEPROM_READ_VAR(i, mesh_num_y);
-      for (int q=0; q<mesh_num_x*mesh_num_y; q++) {
-        EEPROM_READ_VAR(i, dummy);
-      }
-    #endif  // MESH_BED_LEVELING
+      for (int q = 0; q < mesh_num_x * mesh_num_y; q++) EEPROM_READ_VAR(i, dummy);
+    #endif // MESH_BED_LEVELING
 
     #ifndef ENABLE_AUTO_BED_LEVELING
       float zprobe_zoffset = 0;
       for (int q=2; q--;) EEPROM_READ_VAR(i, dummy); // bedKi, bedKd
     }
 
-    #ifndef DOGLCD
+    #ifndef HAS_LCD_CONTRAST
       int lcd_contrast;
     #endif
     EEPROM_READ_VAR(i, lcd_contrast);
 
 #endif // EEPROM_SETTINGS
 
+/**
+ * Reset Configuration Settings - M502
+ */
+
 void Config_ResetDefault() {
   float tmp1[] = DEFAULT_AXIS_STEPS_PER_UNIT;
   float tmp2[] = DEFAULT_MAX_FEEDRATE;
     absPreheatFanSpeed = ABS_PREHEAT_FAN_SPEED;
   #endif
 
-  #ifdef DOGLCD
+  #ifdef HAS_LCD_CONTRAST
     lcd_contrast = DEFAULT_LCD_CONTRAST;
   #endif
 
 
 #ifndef DISABLE_M503
 
+/**
+ * Print Configuration Settings - M503
+ */
+
+#define CONFIG_ECHO_START do{ if (!forReplay) SERIAL_ECHO_START; }while(0)
+
 void Config_PrintSettings(bool forReplay) {
   // Always have this function, even with EEPROM_SETTINGS disabled, the current values will be shown
 
-  SERIAL_ECHO_START;
+  CONFIG_ECHO_START;
 
   if (!forReplay) {
     SERIAL_ECHOLNPGM("Steps per unit:");
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
   }
   SERIAL_ECHOPAIR("  M92 X", axis_steps_per_unit[X_AXIS]);
   SERIAL_ECHOPAIR(" Y", axis_steps_per_unit[Y_AXIS]);
   SERIAL_ECHOPAIR(" E", axis_steps_per_unit[E_AXIS]);
   SERIAL_EOL;
 
-  SERIAL_ECHO_START;
+  CONFIG_ECHO_START;
 
   #ifdef SCARA
     if (!forReplay) {
       SERIAL_ECHOLNPGM("Scaling factors:");
-      SERIAL_ECHO_START;
+      CONFIG_ECHO_START;
     }
     SERIAL_ECHOPAIR("  M365 X", axis_scaling[X_AXIS]);
     SERIAL_ECHOPAIR(" Y", axis_scaling[Y_AXIS]);
     SERIAL_ECHOPAIR(" Z", axis_scaling[Z_AXIS]);
     SERIAL_EOL;
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
   #endif // SCARA
 
   if (!forReplay) {
     SERIAL_ECHOLNPGM("Maximum feedrates (mm/s):");
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
   }
   SERIAL_ECHOPAIR("  M203 X", max_feedrate[X_AXIS]);
   SERIAL_ECHOPAIR(" Y", max_feedrate[Y_AXIS]);
   SERIAL_ECHOPAIR(" E", max_feedrate[E_AXIS]);
   SERIAL_EOL;
 
-  SERIAL_ECHO_START;
+  CONFIG_ECHO_START;
   if (!forReplay) {
     SERIAL_ECHOLNPGM("Maximum Acceleration (mm/s2):");
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
   }
-  SERIAL_ECHOPAIR("  M201 X", max_acceleration_units_per_sq_second[X_AXIS] );
-  SERIAL_ECHOPAIR(" Y", max_acceleration_units_per_sq_second[Y_AXIS] );
-  SERIAL_ECHOPAIR(" Z", max_acceleration_units_per_sq_second[Z_AXIS] );
+  SERIAL_ECHOPAIR("  M201 X", max_acceleration_units_per_sq_second[X_AXIS]);
+  SERIAL_ECHOPAIR(" Y", max_acceleration_units_per_sq_second[Y_AXIS]);
+  SERIAL_ECHOPAIR(" Z", max_acceleration_units_per_sq_second[Z_AXIS]);
   SERIAL_ECHOPAIR(" E", max_acceleration_units_per_sq_second[E_AXIS]);
   SERIAL_EOL;
-  SERIAL_ECHO_START;
+  CONFIG_ECHO_START;
   if (!forReplay) {
     SERIAL_ECHOLNPGM("Accelerations: P=printing, R=retract and T=travel");
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
   }
-  SERIAL_ECHOPAIR("  M204 P", acceleration );
+  SERIAL_ECHOPAIR("  M204 P", acceleration);
   SERIAL_ECHOPAIR(" R", retract_acceleration);
   SERIAL_ECHOPAIR(" T", travel_acceleration);
   SERIAL_EOL;
 
-  SERIAL_ECHO_START;
+  CONFIG_ECHO_START;
   if (!forReplay) {
     SERIAL_ECHOLNPGM("Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s),  Z=maximum Z jerk (mm/s),  E=maximum E jerk (mm/s)");
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
   }
-  SERIAL_ECHOPAIR("  M205 S", minimumfeedrate );
-  SERIAL_ECHOPAIR(" T", mintravelfeedrate );
-  SERIAL_ECHOPAIR(" B", minsegmenttime );
-  SERIAL_ECHOPAIR(" X", max_xy_jerk );
+  SERIAL_ECHOPAIR("  M205 S", minimumfeedrate);
+  SERIAL_ECHOPAIR(" T", mintravelfeedrate);
+  SERIAL_ECHOPAIR(" B", minsegmenttime);
+  SERIAL_ECHOPAIR(" X", max_xy_jerk);
   SERIAL_ECHOPAIR(" Z", max_z_jerk);
   SERIAL_ECHOPAIR(" E", max_e_jerk);
   SERIAL_EOL;
 
-  SERIAL_ECHO_START;
+  CONFIG_ECHO_START;
   if (!forReplay) {
     SERIAL_ECHOLNPGM("Home offset (mm):");
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
   }
-  SERIAL_ECHOPAIR("  M206 X", home_offset[X_AXIS] );
-  SERIAL_ECHOPAIR(" Y", home_offset[Y_AXIS] );
-  SERIAL_ECHOPAIR(" Z", home_offset[Z_AXIS] );
+  SERIAL_ECHOPAIR("  M206 X", home_offset[X_AXIS]);
+  SERIAL_ECHOPAIR(" Y", home_offset[Y_AXIS]);
+  SERIAL_ECHOPAIR(" Z", home_offset[Z_AXIS]);
   SERIAL_EOL;
 
+  #ifdef MESH_BED_LEVELING
+    if (!forReplay) {
+      SERIAL_ECHOLNPGM("Mesh bed leveling:");
+      CONFIG_ECHO_START;
+    }
+    SERIAL_ECHOPAIR("  M420 S", (int32_t)mbl.active);
+    SERIAL_ECHOPAIR(" X", MESH_NUM_X_POINTS);
+    SERIAL_ECHOPAIR(" Y", MESH_NUM_Y_POINTS);
+    SERIAL_EOL;
+    for (int y=0; y<MESH_NUM_Y_POINTS; y++) {
+      for (int x=0; x<MESH_NUM_X_POINTS; x++) {
+        CONFIG_ECHO_START;
+        SERIAL_ECHOPAIR("  M421 X", mbl.get_x(x));
+        SERIAL_ECHOPAIR(" Y", mbl.get_y(y));
+        SERIAL_ECHOPAIR(" Z", mbl.z_values[y][x]);
+        SERIAL_EOL;
+      }
+    }
+  #endif
+
   #ifdef DELTA
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
     if (!forReplay) {
-      SERIAL_ECHOLNPGM("Endstop adjustement (mm):");
-      SERIAL_ECHO_START;
+      SERIAL_ECHOLNPGM("Endstop adjustment (mm):");
+      CONFIG_ECHO_START;
     }
-    SERIAL_ECHOPAIR("  M666 X", endstop_adj[X_AXIS] );
-    SERIAL_ECHOPAIR(" Y", endstop_adj[Y_AXIS] );
-    SERIAL_ECHOPAIR(" Z", endstop_adj[Z_AXIS] );
+    SERIAL_ECHOPAIR("  M666 X", endstop_adj[X_AXIS]);
+    SERIAL_ECHOPAIR(" Y", endstop_adj[Y_AXIS]);
+    SERIAL_ECHOPAIR(" Z", endstop_adj[Z_AXIS]);
     SERIAL_EOL;
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
     SERIAL_ECHOLNPGM("Delta settings: L=delta_diagonal_rod, R=delta_radius, S=delta_segments_per_second");
-    SERIAL_ECHO_START;
-    SERIAL_ECHOPAIR("  M665 L", delta_diagonal_rod );
-    SERIAL_ECHOPAIR(" R", delta_radius );
-    SERIAL_ECHOPAIR(" S", delta_segments_per_second );
+    CONFIG_ECHO_START;
+    SERIAL_ECHOPAIR("  M665 L", delta_diagonal_rod);
+    SERIAL_ECHOPAIR(" R", delta_radius);
+    SERIAL_ECHOPAIR(" S", delta_segments_per_second);
     SERIAL_EOL;
   #elif defined(Z_DUAL_ENDSTOPS)
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
     if (!forReplay) {
-      SERIAL_ECHOLNPGM("Z2 Endstop adjustement (mm):");
-      SERIAL_ECHO_START;
+      SERIAL_ECHOLNPGM("Z2 Endstop adjustment (mm):");
+      CONFIG_ECHO_START;
     }
-    SERIAL_ECHOPAIR("  M666 Z", z_endstop_adj );
+    SERIAL_ECHOPAIR("  M666 Z", z_endstop_adj);
     SERIAL_EOL;  
   #endif // DELTA
 
+  #ifdef ULTIPANEL
+    CONFIG_ECHO_START;
+    if (!forReplay) {
+      SERIAL_ECHOLNPGM("Material heatup parameters:");
+      CONFIG_ECHO_START;
+    }
+    SERIAL_ECHOPAIR("  M145 M0 H", (unsigned long)plaPreheatHotendTemp);
+    SERIAL_ECHOPAIR(" B", (unsigned long)plaPreheatHPBTemp);
+    SERIAL_ECHOPAIR(" F", (unsigned long)plaPreheatFanSpeed);
+    SERIAL_EOL;
+    CONFIG_ECHO_START;
+    SERIAL_ECHOPAIR("  M145 M1 H", (unsigned long)absPreheatHotendTemp);
+    SERIAL_ECHOPAIR(" B", (unsigned long)absPreheatHPBTemp);
+    SERIAL_ECHOPAIR(" F", (unsigned long)absPreheatFanSpeed);
+    SERIAL_EOL;
+  #endif // ULTIPANEL
+
   #if defined(PIDTEMP) || defined(PIDTEMPBED)
-    SERIAL_ECHO_START;
+
+    CONFIG_ECHO_START;
     if (!forReplay) {
       SERIAL_ECHOLNPGM("PID settings:");
-      SERIAL_ECHO_START;
     }
-    #if defined(PIDTEMP) && defined(PIDTEMPBED)
-      SERIAL_EOL;
-    #endif
     #ifdef PIDTEMP
-      SERIAL_ECHOPAIR("  M301 P", PID_PARAM(Kp, 0)); // for compatibility with hosts, only echos values for E0
-      SERIAL_ECHOPAIR(" I", unscalePID_i(PID_PARAM(Ki, 0)));
-      SERIAL_ECHOPAIR(" D", unscalePID_d(PID_PARAM(Kd, 0)));
-      SERIAL_EOL;
-    #endif
+      #if EXTRUDERS > 1
+        if (forReplay) {
+          for (uint8_t i = 0; i < EXTRUDERS; i++) {
+            CONFIG_ECHO_START;
+            SERIAL_ECHOPAIR("  M301 E", (unsigned long)i);
+            SERIAL_ECHOPAIR(" P", PID_PARAM(Kp, i));
+            SERIAL_ECHOPAIR(" I", unscalePID_i(PID_PARAM(Ki, i)));
+            SERIAL_ECHOPAIR(" D", unscalePID_d(PID_PARAM(Kd, i)));
+            #ifdef PID_ADD_EXTRUSION_RATE
+              SERIAL_ECHOPAIR(" C", PID_PARAM(Kc, i));
+            #endif      
+            SERIAL_EOL;
+          }
+        }
+        else
+      #endif // EXTRUDERS > 1
+      // !forReplay || EXTRUDERS == 1
+      {
+        CONFIG_ECHO_START;
+        SERIAL_ECHOPAIR("  M301 P", PID_PARAM(Kp, 0)); // for compatibility with hosts, only echo values for E0
+        SERIAL_ECHOPAIR(" I", unscalePID_i(PID_PARAM(Ki, 0)));
+        SERIAL_ECHOPAIR(" D", unscalePID_d(PID_PARAM(Kd, 0)));
+        #ifdef PID_ADD_EXTRUSION_RATE
+          SERIAL_ECHOPAIR(" C", PID_PARAM(Kc, 0));
+        #endif      
+        SERIAL_EOL;
+      }
+    #endif // PIDTEMP
+
     #ifdef PIDTEMPBED
-      SERIAL_ECHOPAIR("  M304 P", bedKp); // for compatibility with hosts, only echos values for E0
+      CONFIG_ECHO_START;
+      SERIAL_ECHOPAIR("  M304 P", bedKp);
       SERIAL_ECHOPAIR(" I", unscalePID_i(bedKi));
       SERIAL_ECHOPAIR(" D", unscalePID_d(bedKd));
       SERIAL_EOL;
     #endif
+
+  #endif // PIDTEMP || PIDTEMPBED
+
+  #ifdef HAS_LCD_CONTRAST
+    CONFIG_ECHO_START;
+    if (!forReplay) {
+      SERIAL_ECHOLNPGM("LCD Contrast:");
+      CONFIG_ECHO_START;
+    }
+    SERIAL_ECHOPAIR("  M250 C", (unsigned long)lcd_contrast);
+    SERIAL_EOL;
   #endif
 
   #ifdef FWRETRACT
 
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
     if (!forReplay) {
       SERIAL_ECHOLNPGM("Retract: S=Length (mm) F:Speed (mm/m) Z: ZLift (mm)");
-      SERIAL_ECHO_START;
+      CONFIG_ECHO_START;
     }
     SERIAL_ECHOPAIR("  M207 S", retract_length);
+    #if EXTRUDERS > 1
+      SERIAL_ECHOPAIR(" W", retract_length_swap);
+    #endif
     SERIAL_ECHOPAIR(" F", retract_feedrate*60);
     SERIAL_ECHOPAIR(" Z", retract_zlift);
     SERIAL_EOL;
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
     if (!forReplay) {
       SERIAL_ECHOLNPGM("Recover: S=Extra length (mm) F:Speed (mm/m)");
-      SERIAL_ECHO_START;
+      CONFIG_ECHO_START;
     }
     SERIAL_ECHOPAIR("  M208 S", retract_recover_length);
+    #if EXTRUDERS > 1
+      SERIAL_ECHOPAIR(" W", retract_recover_length_swap);
+    #endif
     SERIAL_ECHOPAIR(" F", retract_recover_feedrate*60);
     SERIAL_EOL;
-    SERIAL_ECHO_START;
+    CONFIG_ECHO_START;
     if (!forReplay) {
       SERIAL_ECHOLNPGM("Auto-Retract: S=0 to disable, 1 to interpret extrude-only moves as retracts or recoveries");
-      SERIAL_ECHO_START;
+      CONFIG_ECHO_START;
     }
     SERIAL_ECHOPAIR("  M209 S", (unsigned long)(autoretract_enabled ? 1 : 0));
     SERIAL_EOL;
 
-    #if EXTRUDERS > 1
-      if (!forReplay) {
-        SERIAL_ECHO_START;
-        SERIAL_ECHOLNPGM("Multi-extruder settings:");
-        SERIAL_ECHO_START;
-        SERIAL_ECHOPAIR("   Swap retract length (mm):    ", retract_length_swap);
-        SERIAL_EOL;
-        SERIAL_ECHO_START;
-        SERIAL_ECHOPAIR("   Swap rec. addl. length (mm): ", retract_recover_length_swap);
-        SERIAL_EOL;
-      }
-    #endif // EXTRUDERS > 1
-
   #endif // FWRETRACT
 
-  SERIAL_ECHO_START;
   if (volumetric_enabled) {
     if (!forReplay) {
+      CONFIG_ECHO_START;
       SERIAL_ECHOLNPGM("Filament settings:");
-      SERIAL_ECHO_START;
     }
+
+    CONFIG_ECHO_START;
     SERIAL_ECHOPAIR("  M200 D", filament_size[0]);
     SERIAL_EOL;
 
     #if EXTRUDERS > 1
-      SERIAL_ECHO_START;
+      CONFIG_ECHO_START;
       SERIAL_ECHOPAIR("  M200 T1 D", filament_size[1]);
       SERIAL_EOL;
       #if EXTRUDERS > 2
-        SERIAL_ECHO_START;
+        CONFIG_ECHO_START;
         SERIAL_ECHOPAIR("  M200 T2 D", filament_size[2]);
         SERIAL_EOL;
         #if EXTRUDERS > 3
-          SERIAL_ECHO_START;
+          CONFIG_ECHO_START;
           SERIAL_ECHOPAIR("  M200 T3 D", filament_size[3]);
           SERIAL_EOL;
         #endif
 
   } else {
     if (!forReplay) {
+      CONFIG_ECHO_START;
       SERIAL_ECHOLNPGM("Filament settings: Disabled");
     }
   }
 
   #ifdef ENABLE_AUTO_BED_LEVELING
-    SERIAL_ECHO_START;
     #ifdef CUSTOM_M_CODES
       if (!forReplay) {
+        CONFIG_ECHO_START;
         SERIAL_ECHOLNPGM("Z-Probe Offset (mm):");
-        SERIAL_ECHO_START;
       }
+      CONFIG_ECHO_START;
       SERIAL_ECHOPAIR("  M", (unsigned long)CUSTOM_M_CODE_SET_Z_PROBE_OFFSET);
       SERIAL_ECHOPAIR(" Z", -zprobe_zoffset);
     #else
       if (!forReplay) {
+        CONFIG_ECHO_START;
         SERIAL_ECHOPAIR("Z-Probe Offset (mm):", -zprobe_zoffset);
       }
     #endif

Marlin/ConfigurationStore.h → Marlin/configuration_store.h

-#ifndef CONFIGURATIONSTORE_H
-#define CONFIGURATIONSTORE_H
+#ifndef CONFIGURATION_STORE_H
+#define CONFIGURATION_STORE_H
 
 #include "Configuration.h"
 
   FORCE_INLINE void Config_RetrieveSettings() { Config_ResetDefault(); Config_PrintSettings(); }
 #endif
 
-#endif //CONFIGURATIONSTORE_H
+#endif //CONFIGURATION_STORE_H

Marlin/configurator/config/Configuration.h

 // startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
 // build by the user have been successfully uploaded into firmware.
 #define STRING_VERSION "1.0.3 dev"
-#define STRING_URL "reprap.org"
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
 #define STRING_CONFIG_H_AUTHOR "(none, default config)" // Who made the changes.
 #define STRING_SPLASH_LINE1 "v" STRING_VERSION // will be shown during bootup in line 1
   #define MOTHERBOARD BOARD_RAMPS_13_EFB
 #endif
 
-// Define this to set a custom name for your generic Mendel,
-// #define CUSTOM_MENDEL_NAME "This Mendel"
+// Optional custom name for your RepStrap or other custom machine
+// Displayed in the LCD "Ready" message
+// #define CUSTOM_MACHINE_NAME "3D Printer"
 
 // Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
 // You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)
 #define E_ENABLE_ON 0 // For all extruders
 
 // Disables axis when it's not being used.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
 // @section lcd
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+
+// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
 //#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
-//#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
-                                               // 0 to disable buzzer feedback  
+//#define LCD_FEEDBACK_FREQUENCY_HZ 1000         // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
+                                                 // 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
 
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
 // http://reprap.org/wiki/PanelOne

Marlin/configurator/config/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again
 //#define HEATERS_PARALLEL
 
 //===========================================================================
-//=============================Buffers           ============================
+//================================= Buffers =================================
 //===========================================================================
 
 // @section hidden

Marlin/configurator/config/language.h

   #endif
 #else
   #ifndef MACHINE_NAME
-    #define MACHINE_NAME "Mendel"
+    #define MACHINE_NAME "3D Printer"
   #endif
 #endif
 
 #ifdef CUSTOM_MENDEL_NAME
-  #warning CUSTOM_MENDEL_NAME deprecated - use CUSTOM_MACHINE_NAME
+  #error CUSTOM_MENDEL_NAME deprecated - use CUSTOM_MACHINE_NAME
   #define CUSTOM_MACHINE_NAME CUSTOM_MENDEL_NAME
 #endif
 
 
 // Serial Console Messages (do not translate those!)
 
-#define MSG_Enqueing                        "enqueing \""
+#define MSG_Enqueueing                      "enqueueing \""
 #define MSG_POWERUP                         "PowerUp"
 #define MSG_EXTERNAL_RESET                  " External Reset"
 #define MSG_BROWNOUT_RESET                  " Brown out Reset"
 #define MSG_PLANNER_BUFFER_BYTES            "  PlannerBufferBytes: "
 #define MSG_OK                              "ok"
 #define MSG_FILE_SAVED                      "Done saving file."
-#define MSG_ERR_LINE_NO                     "Line Number is not Last Line Number+1, Last Line: "
+#define MSG_ERR_LINE_NO1                    "Line Number out of sequence. Expected: "
+#define MSG_ERR_LINE_NO2                    " Got: "
 #define MSG_ERR_CHECKSUM_MISMATCH           "checksum mismatch, Last Line: "
 #define MSG_ERR_NO_CHECKSUM                 "No Checksum with line number, Last Line: "
 #define MSG_ERR_NO_LINENUMBER_WITH_CHECKSUM "No Line Number with checksum, Last Line: "
 #define MSG_Z_MAX                           "z_max: "
 #define MSG_Z2_MAX                          "z2_max: "
 #define MSG_Z_PROBE                         "z_probe: "
+#define MSG_ERR_MATERIAL_INDEX              "M145 S<index> out of range (0-1)"
+#define MSG_ERR_M421_REQUIRES_XYZ           "M421 requires XYZ parameters"
+#define MSG_ERR_MESH_INDEX_OOB              "Mesh XY index is out of bounds"
 #define MSG_M119_REPORT                     "Reporting endstop status"
 #define MSG_ENDSTOP_HIT                     "TRIGGERED"
 #define MSG_ENDSTOP_OPEN                    "open"
 #define MSG_OK_B                            "ok B:"
 #define MSG_OK_T                            "ok T:"
 #define MSG_AT                              " @:"
-#define MSG_PID_AUTOTUNE_FINISHED           MSG_PID_AUTOTUNE " finished! Put the last Kp, Ki and Kd constants from above into Configuration.h"
+#define MSG_PID_AUTOTUNE_FINISHED           MSG_PID_AUTOTUNE " finished! Put the last Kp, Ki and Kd constants from below into Configuration.h"
 #define MSG_PID_DEBUG                       " PID_DEBUG "
 #define MSG_PID_DEBUG_INPUT                 ": Input "
 #define MSG_PID_DEBUG_OUTPUT                " Output "

Marlin/configurator/index.html

 
           <label class="newline">Motherboard:</label><select name="MOTHERBOARD"></select>
 
-          <label class="newline">Custom Name:</label><input name="CUSTOM_MENDEL_NAME" type="text" size="14" maxlength="12" value="" />
+          <label class="newline">Custom Name:</label><input name="CUSTOM_MACHINE_NAME" type="text" size="14" maxlength="12" value="" />
 
           <label class="newline">Machine UUID:</label><input name="MACHINE_UUID" type="text" size="38" maxlength="36" value="" />
 

Marlin/dogm_font_data_ISO10646_CN.h

+/*
+  Fontname: ISO10646_CN
+  Copyright: A. Hardtung, public domain
+  Capital A Height: 7, '1' Height: 7
+  Calculated Max Values w=11 h=11 x= 2 y=10 dx=12 dy= 0 ascent=10 len=22
+  Font Bounding box     w=12 h=11 x= 0 y=-2
+  Calculated Min Values           x= 0 y=-1 dx= 0 dy= 0
+  Pure Font   ascent = 7 descent=-1
+  X Font      ascent = 7 descent=-1
+  Max Font    ascent =10 descent=-1
+*/
+#include <utility/u8g.h>
+const u8g_fntpgm_uint8_t ISO10646_CN[4105] U8G_SECTION(".progmem.ISO10646_CN") = {
+  0,12,11,0,254,7,1,146,3,33,32,255,255,10,255,7,
+  255,0,0,0,6,0,10,1,7,7,6,2,0,128,128,128,
+  128,128,0,128,3,2,2,6,1,5,160,160,5,7,7,6,
+  0,0,80,80,248,80,248,80,80,5,7,7,6,0,0,32,
+  120,160,112,40,240,32,5,7,7,6,0,0,192,200,16,32,
+  64,152,24,5,7,7,6,0,0,96,144,160,64,168,144,104,
+  2,3,3,6,1,4,192,64,128,3,7,7,6,1,0,32,
+  64,128,128,128,64,32,3,7,7,6,1,0,128,64,32,32,
+  32,64,128,5,5,5,6,0,1,32,168,112,168,32,5,5,
+  5,6,0,1,32,32,248,32,32,2,3,3,6,2,255,192,
+  64,128,5,1,1,6,0,3,248,2,2,2,6,2,0,192,
+  192,5,5,5,6,0,1,8,16,32,64,128,5,7,7,6,
+  0,0,112,136,152,168,200,136,112,3,7,7,6,1,0,64,
+  192,64,64,64,64,224,5,7,7,6,0,0,112,136,8,112,
+  128,128,248,5,7,7,6,0,0,248,16,32,16,8,8,240,
+  5,7,7,6,0,0,16,48,80,144,248,16,16,5,7,7,
+  6,0,0,248,128,240,8,8,136,112,5,7,7,6,0,0,
+  112,128,128,240,136,136,112,5,7,7,6,0,0,248,8,16,
+  32,32,32,32,5,7,7,6,0,0,112,136,136,112,136,136,
+  112,5,7,7,6,0,0,112,136,136,120,8,8,112,2,5,
+  5,6,2,0,192,192,0,192,192,2,6,6,6,2,255,192,
+  192,0,192,64,128,4,7,7,6,0,0,16,32,64,128,64,
+  32,16,5,3,3,6,0,2,248,0,248,4,7,7,6,0,
+  0,128,64,32,16,32,64,128,5,7,7,6,0,0,112,136,
+  8,16,32,0,32,5,7,7,6,0,0,112,136,8,104,168,
+  168,112,5,7,7,6,0,0,112,136,136,248,136,136,136,5,
+  7,7,6,0,0,240,136,136,240,136,136,240,5,7,7,6,
+  0,0,112,136,128,128,128,136,112,5,7,7,6,0,0,240,
+  136,136,136,136,136,240,5,7,7,6,0,0,248,128,128,240,
+  128,128,248,5,7,7,6,0,0,248,128,128,240,128,128,128,
+  5,7,7,6,0,0,112,136,128,184,136,136,112,5,7,7,
+  6,0,0,136,136,136,248,136,136,136,1,7,7,6,2,0,
+  128,128,128,128,128,128,128,5,7,7,6,0,0,56,16,16,
+  16,16,144,96,5,7,7,6,0,0,136,144,160,192,160,144,
+  136,5,7,7,6,0,0,128,128,128,128,128,128,248,5,7,
+  7,6,0,0,136,216,168,136,136,136,136,5,7,7,6,0,
+  0,136,136,200,168,152,136,136,5,7,7,6,0,0,112,136,
+  136,136,136,136,112,5,7,7,6,0,0,240,136,136,240,128,
+  128,128,5,7,7,6,0,0,112,136,136,136,168,144,104,5,
+  7,7,6,0,0,240,136,136,240,160,144,136,5,7,7,6,
+  0,0,120,128,128,112,8,8,240,5,7,7,6,0,0,248,
+  32,32,32,32,32,32,5,7,7,6,0,0,136,136,136,136,
+  136,136,112,5,7,7,6,0,0,136,136,136,136,136,80,32,
+  5,7,7,6,0,0,136,136,136,136,136,168,80,5,7,7,
+  6,0,0,136,136,80,32,80,136,136,5,7,7,6,0,0,
+  136,136,136,80,32,32,32,5,7,7,6,0,0,248,8,16,
+  32,64,128,248,3,7,7,6,0,0,224,128,128,128,128,128,
+  224,5,5,5,6,0,1,128,64,32,16,8,3,7,7,6,
+  0,0,224,32,32,32,32,32,224,5,3,3,6,0,4,32,
+  80,136,5,1,1,6,0,0,248,2,2,2,6,2,5,128,
+  64,5,5,5,6,0,0,112,8,120,136,120,5,7,7,6,
+  0,0,128,128,176,200,136,136,240,5,5,5,6,0,0,112,
+  128,128,136,112,5,7,7,6,0,0,8,8,104,152,136,136,
+  120,5,5,5,6,0,0,112,136,248,128,112,5,7,7,6,
+  0,0,48,72,224,64,64,64,64,5,6,6,6,0,255,112,
+  136,136,120,8,112,5,7,7,6,0,0,128,128,176,200,136,
+  136,136,1,7,7,6,2,0,128,0,128,128,128,128,128,3,
+  8,8,6,1,255,32,0,32,32,32,32,160,64,4,7,7,
+  6,1,0,128,128,144,160,192,160,144,3,7,7,6,1,0,
+  192,64,64,64,64,64,224,5,5,5,6,0,0,208,168,168,
+  168,168,5,5,5,6,0,0,176,200,136,136,136,5,5,5,
+  6,0,0,112,136,136,136,112,5,6,6,6,0,255,240,136,
+  136,240,128,128,5,6,6,6,0,255,120,136,136,120,8,8,
+  5,5,5,6,0,0,176,200,128,128,128,5,5,5,6,0,
+  0,112,128,112,8,240,4,7,7,6,0,0,64,64,224,64,
+  64,64,48,5,5,5,6,0,0,136,136,136,152,104,5,5,
+  5,6,0,0,136,136,136,80,32,5,5,5,6,0,0,136,
+  136,168,168,80,5,5,5,6,0,0,136,80,32,80,136,5,
+  6,6,6,0,255,136,136,136,120,8,112,5,5,5,6,0,
+  0,248,16,32,64,248,3,7,7,6,1,0,32,64,64,128,
+  64,64,32,1,7,7,6,2,0,128,128,128,128,128,128,128,
+  3,7,7,6,1,0,128,64,64,32,64,64,128,5,2,2,
+  6,0,3,104,144,0,0,0,6,0,10,0,0,0,12,0,
+  10,0,0,0,12,0,10,0,0,0,12,0,10,0,0,0,
+  12,0,10,0,0,0,12,0,10,0,0,0,12,0,10,0,
+  0,0,12,0,10,0,0,0,12,0,10,0,0,0,12,0,
+  10,0,0,0,12,0,10,0,0,0,12,0,10,0,0,0,
+  12,0,10,0,0,0,12,0,10,0,0,0,12,0,10,0,
+  0,0,12,0,10,0,0,0,12,0,10,0,0,0,12,0,
+  10,0,0,0,12,0,10,0,0,0,12,0,10,0,0,0,
+  12,0,10,0,0,0,12,0,10,0,0,0,12,0,10,0,
+  0,0,12,0,10,0,0,0,12,0,10,0,0,0,12,0,
+  10,0,0,0,12,0,10,0,0,0,12,0,10,0,0,0,
+  12,0,10,0,0,0,12,0,10,11,11,22,12,0,255,255,
+  224,2,0,2,0,4,0,13,0,20,128,36,64,196,32,4,
+  0,4,0,4,0,11,11,22,12,0,255,249,0,138,0,171,
+  224,172,64,170,64,170,64,170,64,170,128,33,0,82,128,140,
+  96,11,11,22,12,0,255,36,0,36,0,63,128,68,0,132,
+  0,4,0,255,224,10,0,17,0,32,128,192,96,11,11,22,
+  12,0,255,36,0,36,0,63,192,68,0,4,0,255,224,9,
+  0,9,0,17,32,33,32,64,224,11,11,22,12,0,255,32,
+  0,61,224,81,32,145,32,17,32,255,32,17,32,41,32,37,
+  224,69,32,128,0,11,11,22,12,0,255,32,128,127,192,8,
+  64,255,224,17,0,32,128,95,64,128,32,63,128,0,0,127,
+  192,11,11,22,12,0,255,34,64,71,224,148,128,228,128,47,
+  224,68,128,244,128,7,224,52,128,196,128,7,224,11,11,22,
+  12,0,255,4,128,143,224,73,0,25,0,47,192,9,0,9,
+  0,47,192,73,0,137,0,15,224,11,11,22,12,0,255,16,
+  0,63,128,81,0,14,0,49,128,192,96,63,128,36,128,63,
+  128,36,128,63,128,11,11,22,12,0,255,34,128,250,64,7,
+  224,250,128,138,128,138,128,250,128,34,128,178,128,170,160,100,
+  224,11,11,22,12,0,255,34,32,71,64,146,128,239,224,34,
+  0,71,192,236,64,7,192,52,64,199,192,4,64,11,11,22,
+  12,0,255,8,0,15,192,8,0,8,0,255,224,8,0,14,
+  0,9,128,8,64,8,0,8,0,10,11,22,12,0,255,255,
+  128,0,128,0,128,128,128,128,128,255,128,128,0,128,0,128,
+  64,128,64,127,192,11,11,22,12,0,255,71,192,65,0,239,
+  224,65,0,69,0,105,96,201,32,77,96,73,32,79,224,200,
+  32,11,11,22,12,0,255,8,0,4,0,4,0,10,0,10,
+  0,10,0,17,0,17,0,32,128,64,64,128,32,11,11,22,
+  12,0,255,34,64,34,0,247,224,34,0,35,224,53,32,229,
+  32,37,64,40,128,41,64,114,32,11,10,20,12,0,0,68,
+  64,68,64,68,64,127,192,4,0,4,0,132,32,132,32,132,
+  32,255,224,11,11,22,12,0,255,4,0,0,0,127,192,4,
+  0,4,0,4,0,127,192,4,0,4,0,4,0,255,224,11,
+  11,22,12,0,255,255,224,17,0,1,192,254,0,72,128,37,
+  0,4,0,255,224,21,0,36,128,196,96,11,11,22,12,0,
+  255,17,0,127,192,68,64,127,192,68,64,127,192,4,0,255,
+  224,4,0,4,0,4,0,9,11,22,12,0,255,16,0,255,
+  128,128,128,128,128,255,128,128,128,128,128,255,128,128,128,128,
+  128,255,128,11,11,22,12,0,255,113,0,1,0,3,224,249,
+  32,33,32,65,32,81,32,137,32,250,32,2,32,4,192,11,
+  11,22,12,0,255,127,192,17,0,17,0,17,0,17,0,255,
+  224,17,0,17,0,33,0,33,0,65,0,11,11,22,12,0,
+  255,33,0,34,0,244,64,87,224,80,32,87,192,148,64,84,
+  64,36,64,87,192,148,64,11,11,22,12,0,255,17,0,10,
+  0,127,192,4,0,4,0,255,224,4,0,10,0,17,0,32,
+  128,192,96,10,11,22,12,0,255,95,192,0,64,132,64,132,
+  64,191,64,132,64,140,64,148,64,164,64,140,64,129,192,11,
+  11,22,12,0,255,36,0,39,192,36,0,36,0,255,224,0,
+  0,20,64,36,128,71,0,12,0,112,0,11,11,22,12,0,
+  255,36,128,4,128,15,192,228,128,36,128,63,224,36,128,36,
+  128,40,128,80,0,143,224,11,11,22,12,0,255,8,0,8,
+  0,255,128,136,128,136,128,255,128,136,128,136,128,255,160,136,
+  32,7,224,11,11,22,12,0,255,39,128,36,128,244,128,36,
+  128,116,128,108,128,164,128,36,128,36,160,40,160,48,96,10,
+  11,22,12,0,255,255,192,128,64,128,64,158,64,146,64,146,
+  64,158,64,128,64,128,64,255,192,128,64,11,11,22,12,0,
+  255,127,192,68,0,95,192,80,64,95,192,80,64,95,192,66,
+  0,74,128,82,64,166,32,11,11,22,12,0,255,4,0,7,
+  224,4,0,127,192,64,64,64,64,64,64,127,192,0,0,82,
+  64,137,32,11,11,22,12,0,255,71,128,36,128,4,128,4,
+  128,232,96,32,0,47,192,36,64,34,128,49,0,38,192,11,
+  11,22,12,0,255,127,192,74,64,127,192,4,0,255,224,4,
+  0,63,128,32,128,36,128,36,128,255,224,11,11,22,12,0,
+  255,34,0,79,224,72,32,79,224,200,0,79,224,74,160,90,
+  160,111,224,74,160,72,96,11,11,22,12,0,255,243,192,36,
+  64,42,128,241,0,34,128,101,224,114,32,165,64,32,128,35,
+  0,44,0,11,11,22,12,0,255,4,0,255,224,128,32,0,
+  0,255,224,4,0,36,0,39,192,36,0,84,0,143,224,11,
+  11,22,12,0,255,115,224,16,128,81,0,35,224,250,32,42,
+  160,34,160,34,160,32,128,33,64,98,32,11,11,22,12,0,
+  255,34,0,247,128,34,128,54,128,226,160,37,160,36,96,104,
+  32,0,0,82,64,137,32,11,11,22,12,0,255,115,192,66,
+  0,66,0,123,224,74,64,74,64,122,64,74,64,66,64,68,
+  64,136,64,11,11,22,12,0,255,8,0,255,224,8,0,31,
+  192,48,64,95,192,144,64,31,192,16,64,16,64,16,192,11,
+  11,22,12,0,255,2,0,127,224,66,0,66,0,95,192,66,
+  0,71,0,74,128,82,64,98,32,130,0,11,11,22,12,0,
+  255,243,192,150,64,145,128,166,96,161,0,151,192,145,0,149,
+  0,231,224,129,0,129,0,11,11,22,12,0,255,15,128,136,
+  128,79,128,8,128,143,128,64,0,31,192,53,64,85,64,149,
+  64,63,224,11,11,22,12,0,255,39,224,32,128,248,128,32,
+  128,32,128,56,128,224,128,32,128,32,128,32,128,97,128,11,
+  11,22,12,0,255,31,224,145,0,87,192,20,64,23,192,148,
+  64,87,192,17,0,85,64,153,32,35,0,11,11,22,12,0,
+  255,32,128,39,224,242,64,33,128,34,64,52,32,226,64,34,
+  64,34,64,34,64,100,64,11,11,22,12,0,255,65,0,65,
+  0,79,224,233,32,73,32,73,32,111,224,201,32,73,32,73,
+  32,207,224,11,11,22,12,0,255,33,0,241,0,79,224,169,
+  32,249,32,47,224,57,32,233,32,41,32,47,224,40,32,11,
+  11,22,12,0,255,143,224,73,32,9,32,203,160,73,32,79,
+  224,72,32,75,160,74,160,107,160,80,224,11,11,22,12,0,
+  255,127,192,4,0,68,64,36,64,36,128,4,0,255,224,4,
+  0,4,0,4,0,4,0,11,11,22,12,0,255,130,0,66,
+  0,31,224,194,0,95,192,82,64,95,192,71,0,74,128,82,
+  64,191,224,11,11,22,12,0,255,4,0,127,224,72,128,127,
+  224,72,128,79,128,64,0,95,192,72,64,71,128,152,96,11,
+  11,22,12,0,255,1,0,239,224,161,0,164,64,175,224,164,
+  64,175,224,169,32,233,32,2,128,12,96,11,11,22,12,0,
+  255,20,192,246,160,188,96,167,128,168,128,191,224,169,32,239,
+  224,9,32,15,224,9,32,11,11,22,12,0,255,127,128,64,
+  128,66,128,98,128,84,128,72,128,72,128,84,160,98,160,64,
+  96,128,32,11,11,22,12,0,255,4,0,127,224,64,32,127,
+  224,64,0,125,224,84,32,76,160,84,96,100,160,141,96,11,
+  11,22,12,0,255,130,0,95,224,4,0,8,64,159,224,64,
+  32,10,128,10,128,74,160,146,160,34,96,11,11,22,12,0,
+  255,65,0,79,224,232,32,66,128,68,64,104,32,199,192,65,
+  0,65,0,65,0,207,224,11,11,22,12,0,255,80,32,125,
+  32,145,32,255,32,17,32,125,32,85,32,85,32,84,32,92,
+  32,16,224,11,11,22,12,0,255,63,128,32,128,63,128,32,
+  128,255,224,72,0,123,192,73,64,121,64,72,128,251,96,11,
+  11,22,12,0,255,4,0,4,0,4,0,36,128,36,64,68,
+  64,68,32,132,32,4,0,4,0,28,0,11,11,22,12,0,
+  255,4,0,4,0,4,0,255,224,4,0,10,0,10,0,17,
+  0,17,0,32,128,192,96,9,10,20,10,0,0,136,128,73,
+  0,8,0,255,128,0,128,0,128,127,128,0,128,0,128,255,
+  128,11,11,22,12,0,255,33,0,18,0,255,224,0,0,120,
+  128,74,128,122,128,74,128,122,128,72,128,89,128,11,11,22,
+  12,0,255,39,192,0,0,0,0,239,224,33,0,34,0,36,
+  64,47,224,32,32,80,0,143,224,11,11,22,12,0,255,32,
+  128,39,0,249,0,33,192,119,0,33,0,249,224,39,0,113,
+  32,169,32,32,224,11,11,22,12,0,255,16,64,16,64,253,
+  224,16,64,56,192,53,64,82,64,148,64,16,64,16,64,16,
+  192,11,11,22,12,0,255,0,64,248,64,11,224,8,64,136,
+  64,82,64,81,64,33,64,80,64,72,64,137,192,10,11,22,
+  12,0,255,132,0,132,64,132,128,245,0,134,0,132,0,132,
+  0,148,0,164,64,196,64,131,192,11,11,22,12,0,255,17,
+  32,125,0,17,0,255,224,41,0,253,64,73,64,124,128,8,
+  160,253,96,10,32,11,11,22,12,0,255,23,192,36,64,36,
+  64,103,192,161,0,47,224,33,0,35,128,37,64,41,32,33,
+  0,11,11,22,12,0,255,8,0,255,224,16,0,39,192,32,
+  128,97,0,175,224,33,0,33,0,33,0,35,0,11,11,22,
+  12,0,255,36,0,47,224,180,0,164,128,164,160,170,192,42,
+  128,40,128,41,64,50,64,36,32,11,11,22,12,0,255,127,
+  224,128,0,63,192,32,64,63,192,16,0,31,192,16,64,40,
+  128,71,0,56,224,11,11,22,12,0,255,127,224,64,0,64,
+  0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,128,
+  0,11,11,22,12,0,255,255,224,4,0,127,192,68,64,127,
+  192,68,64,127,192,68,0,36,0,24,0,231,224,11,11,22,
+  12,0,255,17,224,253,0,69,0,41,224,253,64,17,64,125,
+  64,17,64,85,64,146,64,52,64,11,11,22,12,0,255,33,
+  0,95,224,64,0,207,192,64,0,79,192,64,0,79,192,72,
+  64,79,192,72,64,11,11,22,12,0,255,4,0,127,192,64,
+  64,127,192,64,64,127,192,64,64,127,192,4,64,82,32,191,
+  160,11,11,22,12,0,255,127,192,68,64,127,192,68,64,127,
+  192,4,0,27,0,224,224,17,0,17,0,97,0,11,11,22,
+  12,0,255,255,224,4,0,8,0,127,224,73,32,79,32,73,
+  32,79,32,73,32,73,32,127,224,11,11,22,12,0,255,253,
+  224,86,64,121,64,56,128,85,64,146,32,255,224,4,0,39,
+  192,36,0,255,224,11,11,22,12,0,255,251,128,82,0,123,
+  224,18,64,250,64,20,64,63,128,32,128,63,128,32,128,63,
+  128,11,11,22,12,0,255,31,224,32,0,39,192,100,64,167,
+  192,32,0,47,224,40,32,39,192,33,0,35,0,11,11,22,
+  12,0,255,243,224,130,32,130,32,250,32,130,32,130,32,138,
+  32,178,32,194,224,2,0,2,0,11,11,22,12,0,255,36,
+  128,70,160,149,192,228,128,39,224,68,128,245,192,6,160,52,
+  128,196,128,7,224,11,11,22,12,0,255,39,192,65,0,135,
+  224,224,32,34,128,69,128,242,128,15,224,48,128,193,64,2,
+  32,11,11,22,12,0,255,2,0,2,0,34,0,35,192,34,
+  0,34,0,34,0,34,0,34,0,34,0,255,224,9,11,22,
+  12,0,255,8,0,8,0,255,128,136,128,136,128,136,128,255,
+  128,136,128,136,128,136,128,255,128,11,11,22,12,0,255,33,
+  0,83,160,65,0,247,224,81,0,83,192,86,64,83,192,90,
+  64,83,192,66,64,11,11,22,12,0,255,127,192,4,0,4,
+  0,4,0,255,224,10,0,10,0,18,0,34,32,66,32,129,
+  224,11,11,22,12,0,255,17,0,33,0,47,224,97,0,163,
+  128,35,128,37,64,37,64,41,32,33,0,33,0,11,11,22,
+  12,0,255,247,224,148,32,244,32,151,224,148,128,244,128,151,
+  224,148,128,244,160,150,96,4,32,11,11,22,12,0,255,123,
+  224,148,128,4,0,127,192,4,0,255,224,1,0,255,224,33,
+  0,17,0,7,0,11,11,22,12,0,255,33,0,71,192,145,
+  0,47,224,96,128,175,224,32,128,36,128,34,128,32,128,35,
+  128,11,11,22,12,0,255,39,192,36,64,247,192,46,224,42,
+  160,62,224,225,0,47,224,35,128,37,64,105,32,11,11,22,
+  12,0,255,20,0,39,224,42,0,98,0,163,192,34,0,34,
+  0,35,224,34,0,34,0,34,0};

Marlin/dogm_lcd_implementation.h

 #endif
 
 #include <U8glib.h>
-#include "DOGMbitmaps.h"
+#include "dogm_bitmaps.h"
 
 #include "ultralcd.h"
 #include "ultralcd_st7920_u8glib_rrd.h"
   #elif defined( DISPLAY_CHARSET_ISO10646_KANA )
     #include "dogm_font_data_ISO10646_Kana.h"
     #define FONT_MENU_NAME ISO10646_Kana_5x7
+  #elif defined( DISPLAY_CHARSET_ISO10646_CN )
+    #include "dogm_font_data_ISO10646_CN.h"
+    #define FONT_MENU_NAME ISO10646_CN
+    #define TALL_FONT_CORRECTION 1
   #else // fall-back
     #include "dogm_font_data_ISO10646_1.h"
     #define FONT_MENU_NAME ISO10646_1_5x7
   #define LCD_WIDTH_EDIT       22
 #endif
 
-#define START_ROW              0
+#ifndef TALL_FONT_CORRECTION
+  #define TALL_FONT_CORRECTION 0
+#endif
 
-/* Custom characters defined in font font_6x10_marlin_symbols */
-// \x00 intentionally skipped to avoid problems in strings
-#define LCD_STR_REFRESH     "\x01"
-#define LCD_STR_FOLDER      "\x02"
-#define LCD_STR_ARROW_RIGHT "\x03"
-#define LCD_STR_UPLEVEL     "\x04"
-#define LCD_STR_CLOCK       "\x05"
-#define LCD_STR_FEEDRATE    "\x06"
-#define LCD_STR_BEDTEMP     "\x07"
-#define LCD_STR_THERMOMETER "\x08"
-#define LCD_STR_DEGREE      "\x09"
-
-#define LCD_STR_SPECIAL_MAX '\x09'
-// Maximum here is 0x1f because 0x20 is ' ' (space) and the normal charsets begin.
-// Better stay below 0x10 because DISPLAY_CHARSET_HD44780_WESTERN begins here.
+#define START_ROW              0
 
 // LCD selection
 #ifdef U8GLIB_ST7920
   U8GLIB_DOGM128 u8g(DOGLCD_CS, DOGLCD_A0);  // HW-SPI Com: CS, A0
 #endif
 
+#ifndef LCD_PIXEL_WIDTH
+  #define LCD_PIXEL_WIDTH 128
+#endif
+#ifndef LCD_PIXEL_HEIGHT
+  #define LCD_PIXEL_HEIGHT 64
+#endif
+
 #include "utf_mapper.h"
 
 int lcd_contrast;
 
 static bool show_splashscreen = true;
 
+/* Warning: This function is called from interrupt context */
 static void lcd_implementation_init() {
 
   #ifdef LCD_PIN_BL // Enable LCD backlight
  
   #ifdef SDSUPPORT
     // SD Card Symbol
-    u8g.drawBox(42,42,8,7);
-    u8g.drawBox(50,44,2,5);
-    u8g.drawFrame(42,49,10,4);
-    u8g.drawPixel(50,43);
+    u8g.drawBox(42, 42 - TALL_FONT_CORRECTION, 8, 7);
+    u8g.drawBox(50, 44 - TALL_FONT_CORRECTION, 2, 5);
+    u8g.drawFrame(42, 49 - TALL_FONT_CORRECTION, 10, 4);
+    u8g.drawPixel(50, 43 - TALL_FONT_CORRECTION);
+
 
     // Progress bar frame
-    u8g.drawFrame(54,49,73,4);
+    u8g.drawFrame(54, 49, 73, 4 - TALL_FONT_CORRECTION);
 
     // SD Card Progress bar and clock
     lcd_setFont(FONT_STATUSMENU);
  
     if (IS_SD_PRINTING) {
       // Progress bar solid part
-      u8g.drawBox(55, 50, (unsigned int)(71.f * card.percentDone() / 100.f), 2);
+      u8g.drawBox(55, 50, (unsigned int)(71.f * card.percentDone() / 100.f), 2 - TALL_FONT_CORRECTION);
     }
 
     u8g.setPrintPos(80,48);
-    if (starttime != 0) {
-      uint16_t time = (millis() - starttime) / 60000;
+    if (print_job_start_ms != 0) {
+      uint16_t time = (millis() - print_job_start_ms) / 60000;
       lcd_print(itostr2(time/60));
       lcd_print(':');
       lcd_print(itostr2(time%60));
   lcd_setFont(FONT_STATUSMENU);
 
   #ifdef USE_SMALL_INFOFONT
-    u8g.drawBox(0,30,128,10);
+    u8g.drawBox(0,30,LCD_PIXEL_WIDTH,10);
   #else
-    u8g.drawBox(0,30,128,9);
+    u8g.drawBox(0,30,LCD_PIXEL_WIDTH,9);
   #endif
   u8g.setColorIndex(0); // white on black
   u8g.setPrintPos(2,XYZ_BASELINE);
   lcd_print(LCD_STR_FEEDRATE[0]);
   lcd_setFont(FONT_STATUSMENU);
   u8g.setPrintPos(12,49);
-  lcd_print(itostr3(feedmultiply));
+  lcd_print(itostr3(feedrate_multiplier));
   lcd_print('%');
 
   // Status line
   #ifndef FILAMENT_LCD_DISPLAY
     lcd_print(lcd_status_message);
   #else
-    if (millis() < message_millis + 5000) {  //Display both Status message line and Filament display on the last line
+    if (millis() < previous_lcd_status_ms + 5000) {  //Display both Status message line and Filament display on the last line
       lcd_print(lcd_status_message);
     }
     else {
 static void lcd_implementation_mark_as_selected(uint8_t row, bool isSelected) {
   if (isSelected) {
     u8g.setColorIndex(1);  // black on white
-    u8g.drawBox(0, row * DOG_CHAR_HEIGHT + 3, 128, DOG_CHAR_HEIGHT);
+    u8g.drawBox(0, row * DOG_CHAR_HEIGHT + 3 - TALL_FONT_CORRECTION, LCD_PIXEL_WIDTH, DOG_CHAR_HEIGHT);
     u8g.setColorIndex(0);  // following text must be white on black
   }
   else {
     pstr++;
   }
   while (n--) lcd_print(' ');
+    u8g.setPrintPos(LCD_PIXEL_WIDTH - DOG_CHAR_WIDTH, (row + 1) * DOG_CHAR_HEIGHT);
   lcd_print(post_char);
   lcd_print(' ');
 }
 
 static void _drawmenu_setting_edit_generic(bool isSelected, uint8_t row, const char* pstr, const char* data, bool pgm) {
   char c;
-  uint8_t n = LCD_WIDTH - 2 - (pgm ? lcd_strlen_P(data) : (lcd_strlen((char*)data)));
+  uint8_t vallen = (pgm ? lcd_strlen_P(data) : (lcd_strlen((char*)data)));
+  uint8_t n = LCD_WIDTH - 2 - vallen;
 
   lcd_implementation_mark_as_selected(row, isSelected);
 
   }
   lcd_print(':');
   while (n--) lcd_print(' ');
+  u8g.setPrintPos(LCD_PIXEL_WIDTH - DOG_CHAR_WIDTH * vallen, (row + 1) * DOG_CHAR_HEIGHT);
   if (pgm) { lcd_printPGM(data); } else { lcd_print((char *)data); }
 }
 

Marlin/example_configurations/Felix/Configuration.h

 // startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
 // build by the user have been successfully uploaded into firmware.
 #define STRING_VERSION "1.0.3 dev"
-#define STRING_URL "reprap.org"
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
 #define STRING_CONFIG_H_AUTHOR "(none, default config)" // Who made the changes.
 #define STRING_SPLASH_LINE1 "v" STRING_VERSION // will be shown during bootup in line 1
   #define MOTHERBOARD BOARD_FELIX2
 #endif
 
-// Define this to set a custom name for your generic Mendel,
-// #define CUSTOM_MENDEL_NAME "This Mendel"
+// Optional custom name for your RepStrap or other custom machine
+// Displayed in the LCD "Ready" message
+#define CUSTOM_MACHINE_NAME "Felix"
 
 // Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
 // You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)
 const bool X_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Y_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
+const bool Z_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
 #define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
 #define E_ENABLE_ON 0 // For all extruders
 
 // Disables axis when it's not being used.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
 //#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
-//#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
-                                               // 0 to disable buzzer feedback  
+//#define LCD_FEEDBACK_FREQUENCY_HZ 1000         // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
+                                                 // 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
 
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
 // http://reprap.org/wiki/PanelOne

Marlin/example_configurations/Felix/Configuration_DUAL.h

-#ifndef CONFIGURATION_H
+#ifndef CONFIGURATION_H
 #define CONFIGURATION_H
 
 #include "boards.h"
 // startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
 // build by the user have been successfully uploaded into firmware.
 #define STRING_VERSION "1.0.3 dev"
-#define STRING_URL "reprap.org"
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
 #define STRING_CONFIG_H_AUTHOR "(none, default config)" // Who made the changes.
 #define STRING_SPLASH_LINE1 "v" STRING_VERSION // will be shown during bootup in line 1
   #define MOTHERBOARD BOARD_FELIX2
 #endif
 
-// Define this to set a custom name for your generic Mendel,
-// #define CUSTOM_MENDEL_NAME "This Mendel"
+// Optional custom name for your RepStrap or other custom machine
+// Displayed in the LCD "Ready" message
+#define CUSTOM_MACHINE_NAME "Felix Dual"
 
 // Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
 // You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)
 const bool X_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Y_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
+const bool Z_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
 #define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
 #define E_ENABLE_ON 0 // For all extruders
 
 // Disables axis when it's not being used.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
 //#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
-//#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
-                                               // 0 to disable buzzer feedback  
+//#define LCD_FEEDBACK_FREQUENCY_HZ 1000         // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
+                                                 // 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
 
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
 // http://reprap.org/wiki/PanelOne

Marlin/example_configurations/Felix/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again
 //#define HEATERS_PARALLEL
 
 //===========================================================================
-//=============================Buffers           ============================
+//================================= Buffers =================================
 //===========================================================================
 
 // @section hidden

Marlin/example_configurations/Hephestos/Configuration.h

-#ifndef CONFIGURATION_H
+#ifndef CONFIGURATION_H
 #define CONFIGURATION_H
 
 #include "boards.h"
 // startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
 // build by the user have been successfully uploaded into firmware.
 #define STRING_VERSION "1.0.3 dev"
-#define STRING_URL "reprap.org"
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
 #define STRING_CONFIG_H_AUTHOR "(bq Hephestos)" // Who made the changes.
 #define STRING_SPLASH_LINE1 "v" STRING_VERSION // will be shown during bootup in line 1
 
 // The following define selects which electronics board you have.
 // Please choose the name from boards.h that matches your setup
-#ifndef MOTHERBOARD
-  #define MOTHERBOARD BOARD_HEPHESTOS
-#endif
-
-// Define this to set a custom name for your generic Mendel,
-// #define CUSTOM_MENDEL_NAME "This Mendel"
+#define MOTHERBOARD BOARD_HEPHESTOS
 
+// Optional custom name for your RepStrap or other custom machine
+// Displayed in the LCD "Ready" message
+// #define CUSTOM_MACHINE_NAME "3D Printer"
+ 
 // Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
 // You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)
 // #define MACHINE_UUID "00000000-0000-0000-0000-000000000000"
 const bool X_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Y_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
+const bool Z_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 //#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
 #define E_ENABLE_ON 0 // For all extruders
 
 // Disables axis when it's not being used.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
 //#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
-//#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
-                                               // 0 to disable buzzer feedback  
+//#define LCD_FEEDBACK_FREQUENCY_HZ 1000         // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
+                                                 // 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
 
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
 // http://reprap.org/wiki/PanelOne

Marlin/example_configurations/Hephestos/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again
 //#define HEATERS_PARALLEL
 
 //===========================================================================
-//=============================Buffers           ============================
+//================================= Buffers =================================
 //===========================================================================
 
 // @section hidden

Marlin/example_configurations/K8200/Configuration.h

-#ifndef CONFIGURATION_H
+// Example configuration file for Vellemann K8200
+// tested on K8200 with VM8201 (Display)
+// and Arduino 1.6.1 (Win) by @CONSULitAS, 2015-04-14
+// https://github.com/CONSULitAS/Marlin-K8200/archive/K8200_stable_2015-04-14.zip
+
+#ifndef CONFIGURATION_H
 #define CONFIGURATION_H
 
 #include "boards.h"
 //===========================================================================
 //============================= SCARA Printer ===============================
 //===========================================================================
-// For a Delta printer replace the configuration files with the files in the
+// For a Scara printer replace the configuration files with the files in the
 // example_configurations/SCARA directory.
 //
 
+// @section info
+
 // User-specified version info of this build to display in [Pronterface, etc] terminal window during
 // startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
 // build by the user have been successfully uploaded into firmware.
 #define STRING_VERSION "1.0.3 dev"
-#define STRING_URL "reprap.org"
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
 #define STRING_CONFIG_H_AUTHOR "(K8200, CONSULitAS)" // Who made the changes.
 #define STRING_SPLASH_LINE1 "v" STRING_VERSION // will be shown during bootup in line 1
 //#define STRING_SPLASH_LINE2 STRING_VERSION_CONFIG_H // will be shown during bootup in line2
 
+// @section machine
+
 // SERIAL_PORT selects which serial port should be used for communication with the host.
 // This allows the connection of wireless adapters (for instance) to non-default port pins.
 // Serial port 0 is still used by the Arduino bootloader regardless of this setting.
+// :[0,1,2,3,4,5,6,7]
 #define SERIAL_PORT 0
 
 // This determines the communication speed of the printer
+// :[2400,9600,19200,38400,57600,115200,250000]
 #define BAUDRATE 250000
 
 // This enables the serial port associated to the Bluetooth interface
   #define MOTHERBOARD BOARD_K8200
 #endif
 
-// Define this to set a custom name for your generic Mendel,
-// #define CUSTOM_MENDEL_NAME "This Mendel"
+// Optional custom name for your RepStrap or other custom machine
+// Displayed in the LCD "Ready" message
+// #define CUSTOM_MACHINE_NAME "3D Printer"
 
 // Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
 // You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)
 // #define MACHINE_UUID "00000000-0000-0000-0000-000000000000"
 
 // This defines the number of extruders
+// :[1,2,3,4]
 #define EXTRUDERS 1
 
+// Offset of the extruders (uncomment if using more than one and relying on firmware to position when changing).
+// The offset has to be X=0, Y=0 for the extruder 0 hotend (default extruder).
+// For the other hotends it is their distance from the extruder 0 hotend.
+//#define EXTRUDER_OFFSET_X {0.0, 20.00} // (in mm) for each extruder, offset of the hotend on the X axis
+//#define EXTRUDER_OFFSET_Y {0.0, 5.00}  // (in mm) for each extruder, offset of the hotend on the Y axis
+
 //// The following define selects which power supply you have. Please choose the one that matches your setup
 // 1 = ATX
 // 2 = X-Box 360 203Watts (the blue wire connected to PS_ON and the red wire to VCC)
+// :{1:'ATX',2:'X-Box 360'}
 
 #define POWER_SUPPLY 1
 
 // Define this to have the electronics keep the power supply off on startup. If you don't know what this is leave it.
 // #define PS_DEFAULT_OFF
 
+// @section temperature
+
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
 //    #define  DEFAULT_bedKi 1.41
 //    #define  DEFAULT_bedKd 1675.16
 
-//Vellemann K8200 PCB heatbed with standard PCU - calculated with PID Autotune and tested
+//Vellemann K8200 PCB heatbed with standard PCU at 60 degreesC - calculated with PID Autotune and tested
 //from pidautotune
    #define  DEFAULT_bedKp 341.88
    #define  DEFAULT_bedKi 25.32
    // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
 #endif // PIDTEMPBED
 
+// @section extruder
 
 //this prevents dangerous Extruder moves, i.e. if the temperature is under the limit
 //can be software-disabled for whatever purposes by
 //============================= Mechanical Settings =========================
 //===========================================================================
 
+// @section machine
+
 // Uncomment this option to enable CoreXY kinematics
 // #define COREXY
 
 // Enable this option for Toshiba steppers
 // #define CONFIG_STEPPERS_TOSHIBA
 
+// @section homing
+
 // coarse Endstop Settings
 #define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
 
   #define ENDSTOPPULLUP_XMIN
   #define ENDSTOPPULLUP_YMIN
   #define ENDSTOPPULLUP_ZMIN
+  // #define ENDSTOPPULLUP_ZPROBE
 #endif
 
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 const bool X_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Y_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
+const bool Z_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
 #define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
+// @section machine
+// If you want to enable the Z Probe pin, but disable its use, uncomment the line below.
+// This only affects a Z Probe Endstop if you have separate Z min endstop as well and have
+// activated Z_PROBE_ENDSTOP below. If you are using the Z Min endstop on your Z Probe,
+// this has no effect.
+//#define DISABLE_Z_PROBE_ENDSTOP
+
 // For Inverting Stepper Enable Pins (Active Low) use 0, Non Inverting (Active High) use 1
+// :{0:'Low',1:'High'}
 #define X_ENABLE_ON 0
 #define Y_ENABLE_ON 0
 #define Z_ENABLE_ON 0
 #define E_ENABLE_ON 0 // For all extruders
 
 // Disables axis when it's not being used.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z true
+
+// @section extruder
+
 #define DISABLE_E false // For all extruders
 #define DISABLE_INACTIVE_EXTRUDER true //disable only inactive extruders and keep active extruder enabled
 
+// @section machine
+
 // Invert the stepper direction. Change (or reverse the motor connector) if an axis goes the wrong way.
 #define INVERT_X_DIR false
 #define INVERT_Y_DIR false
 #define INVERT_Z_DIR false
-#define INVERT_E0_DIR true
+
+// @section extruder
+
+// For direct drive extruder v9 set to true, for geared extruder set to false.
+#define INVERT_E0_DIR true // K8200: true for geared default extruder!
 #define INVERT_E1_DIR true
 #define INVERT_E2_DIR true
 #define INVERT_E3_DIR true
 
+// @section homing
+
 // ENDSTOP SETTINGS:
 // Sets direction of endstops when homing; 1=MAX, -1=MIN
+// :[-1,1]
 #define X_HOME_DIR -1
 #define Y_HOME_DIR -1
 #define Z_HOME_DIR -1
 #define min_software_endstops true // If true, axis won't move to coordinates less than HOME_POS.
 #define max_software_endstops true  // If true, axis won't move to coordinates greater than the defined lengths below.
 
+// @section machine
+
 // Travel limits after homing (units are in mm)
 #define X_MIN_POS 0
 #define Y_MIN_POS 0
 //#define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
 
 //===========================================================================
-//============================ Manual Bed Leveling ==========================
+//============================ Mesh Bed Leveling ============================
 //===========================================================================
 
 // #define MANUAL_BED_LEVELING  // Add display menu option for bed leveling
 // #define MESH_BED_LEVELING    // Enable mesh bed leveling
 
 #ifdef MANUAL_BED_LEVELING
-  #define MBL_Z_STEP 0.025
+  #define MBL_Z_STEP 0.025  // Step size while manually probing Z axis
 #endif  // MANUAL_BED_LEVELING
 
 #ifdef MESH_BED_LEVELING
 //============================= Bed Auto Leveling ===========================
 //===========================================================================
 
+// @section bedlevel
+
 //#define ENABLE_AUTO_BED_LEVELING // Delete the comment to enable (remove // at the start of the line)
 #define Z_PROBE_REPEATABILITY_TEST  // If not commented out, Z-Probe Repeatability test will be included if Auto Bed Leveling is Enabled.
 
 #endif // ENABLE_AUTO_BED_LEVELING
 
 
+// @section homing
+
 // The position of the homing switches
 //#define MANUAL_HOME_POSITIONS  // If defined, MANUAL_*_HOME_POS below will be used
 //#define BED_CENTER_AT_0_0  // If defined, the center of the bed is at (X=0, Y=0)
   //#define MANUAL_Z_HOME_POS 402 // For delta: Distance between nozzle and print surface after homing.
 #endif
 
+// @section movement
+
 /**
  * MOVEMENT SETTINGS
  */
 #define DEFAULT_RETRACT_ACCELERATION  1000   // E acceleration in mm/s^2 for retracts
 #define DEFAULT_TRAVEL_ACCELERATION   1000    // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
 
-
-// Offset of the extruders (uncomment if using more than one and relying on firmware to position when changing).
-// The offset has to be X=0, Y=0 for the extruder 0 hotend (default extruder).
-// For the other hotends it is their distance from the extruder 0 hotend.
-// #define EXTRUDER_OFFSET_X {0.0, 20.00} // (in mm) for each extruder, offset of the hotend on the X axis
-// #define EXTRUDER_OFFSET_Y {0.0, 5.00}  // (in mm) for each extruder, offset of the hotend on the Y axis
-
 // The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
 #define DEFAULT_XYJERK                20.0    // (mm/sec)
 #define DEFAULT_ZJERK                 0.4     // (mm/sec)
 //============================= Additional Features ===========================
 //=============================================================================
 
+// @section more
+
 // Custom M code points
 #define CUSTOM_M_CODES
 #ifdef CUSTOM_M_CODES
   #endif
 #endif
 
+// @section extras
 
 // EEPROM
 // The microcontroller can store settings in the EEPROM, e.g. max velocity...
   #define EEPROM_CHITCHAT // please keep turned on if you can.
 #endif
 
+
+// @section temperature
+
 // Preheat Constants
 #define PLA_PREHEAT_HOTEND_TEMP 190
-#define PLA_PREHEAT_HPB_TEMP 50
+#define PLA_PREHEAT_HPB_TEMP 50 // K8200: set back to 70 if you have an upgraded heatbed power supply
 #define PLA_PREHEAT_FAN_SPEED 0   // Insert Value between 0 and 255
 
 #define ABS_PREHEAT_HOTEND_TEMP 240
-#define ABS_PREHEAT_HPB_TEMP 60
+#define ABS_PREHEAT_HPB_TEMP 60 // K8200: set back to 110 if you have an upgraded heatbed power supply
 #define ABS_PREHEAT_FAN_SPEED 0   // Insert Value between 0 and 255
 
 //==============================LCD and SD support=============================
+// @section lcd
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
-//#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
+#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 // Choose ONE of these 3 charsets. This has to match your hardware. Ignored for full graphic display.
 // To find out what type you have - compile with (test) - upload - click to get the menu. You'll see two typical lines from the upper half of the charset.
 // See also documentation/LCDLanguageFont.md
-  #define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
+  #define DISPLAY_CHARSET_HD44780_JAPAN        // K8200: for Display VM8201 // this is the most common hardware
   //#define DISPLAY_CHARSET_HD44780_WESTERN
   //#define DISPLAY_CHARSET_HD44780_CYRILLIC
 
 //#define SD_CHECK_AND_RETRY // Use CRC checks and retries on the SD communication
 //#define ENCODER_PULSES_PER_STEP 1 // Increase if you have a high resolution encoder
 //#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
-#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
+#define ULTIMAKERCONTROLLER // K8200: for Display VM8201 // as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
-//#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
-                                               // 0 to disable buzzer feedback  
+//#define LCD_FEEDBACK_FREQUENCY_HZ 1000         // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
+                                                 // 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
 
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
 // http://reprap.org/wiki/PanelOne
 
 //#define SAV_3DLCD
 
+// @section extras
+
 // Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
 // Data from: http://www.doc-diy.net/photo/rc-1_hacked/
 // #define PHOTOGRAPH_PIN     23
 
-// SF send wrong arc g-codes when using Arc Point as fillet procedure
+// SkeinForge sends the wrong arc g-codes when using Arc Point as fillet procedure
 //#define SF_ARC_FIX
 
 // Support for the BariCUDA Paste Extruder.
 #define MAX_MEASUREMENT_DELAY			20  //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM  and lower number saves RAM)
 
 //defines used in the code
-#define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially 
+#define DEFAULT_MEASURED_FILAMENT_DIA  DEFAULT_NOMINAL_FILAMENT_DIA  //set measured to nominal initially
 
 //When using an LCD, uncomment the line below to display the Filament sensor data on the last line instead of status.  Status will appear for 5 sec.
 //#define FILAMENT_LCD_DISPLAY

Marlin/example_configurations/K8200/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again
 //#define HEATERS_PARALLEL
 
 //===========================================================================
-//=============================Buffers           ============================
+//================================= Buffers =================================
 //===========================================================================
 
 // @section hidden

Marlin/example_configurations/K8200/readme.md

-# Example Configuration for Vellemann K8200
-* Configuration files for **Vellemann K8200** (with VM8201 - LCD Option for K8200)
+# Example Configuration for Vellemann [K8200](http://www.k8200.eu/)
+* Configuration files for **Vellemann K8200** (with [VM8201](http://www.vellemanprojects.eu/products/view/?id=416158) - LCD Option for K8200)
 * K8200 is a 3Drag clone - configuration should work with 3Drag http://reprap.org/wiki/3drag, too. Please report.
 
-* updated manually with parameters form genuine Vellemann Firmware "firmware_k8200_marlinv2" based on the recent development branch
+* updated manually with parameters from genuine Vellemann Firmware "firmware_k8200_marlinv2" based on the recent development branch
 
 * VM8201 uses "DISPLAY_CHARSET_HD44870_JAPAN" and "ULTIMAKERCONTROLLER"
 * german (de) translation with umlaut is supported now - thanks to @AnHardt for the great hardware based umlaut support
 
-I (@CONSULitAS) tested the changes on my K8200 with 20x4-LCD and Arduino 1.0.5 for Windows (SD library added to IDE manually) - everything works well.
+I [@CONSULitAS](https://github.com/CONSULitAS) tested the changes on my K8200 with 20x4-LCD and Arduino 1.6.1 for Windows (SD library added to IDE manually) - everything works well.
 
-**Source for genuine Vellemann Firmware V2 (with LCD/SD-Support):**
-* [firmware_k8200_marlinv2.zip](http://www.k8200.eu/downloads/files/downloads/firmware_k8200_marlinv2.zip)
+**Source for genuine [Vellemann Firmware](http://www.k8200.eu/support/downloads/)**
+* V2.1.1 (for z axis upgrade, date branched: 2013-06-05): [firmware_k8200_v2.1.1.zip](http://www.k8200.eu/downloads/files/downloads/firmware_k8200_v2.1.1.zip)
+  * see also https://github.com/CONSULitAS/Marlin-K8200/tree/Vellemann_firmware_k8200_v2.1.1.zip
+
+* V2 (with LCD/SD-Support, date branched: 2013-06-05): [firmware_k8200_marlinv2.zip](http://www.k8200.eu/downloads/files/downloads/firmware_k8200_marlinv2.zip)
+  * see also https://github.com/CONSULitAS/Marlin-K8200/tree/Vellemann_firmware_k8200_marlinv2.zip
+
+* V1 (without LCD/SD-Support, date branched: 2012-10-02): [firmware_k8200_marlinv1.zip](http://www.k8200.eu/downloads/files/downloads/firmware_k8200_marlinv1.zip)
+  * see also https://github.com/CONSULitAS/Marlin-K8200/tree/Vellemann_firmware_k8200_marlinv1.zip

Marlin/example_configurations/SCARA/Configuration.h

-#ifndef CONFIGURATION_H
+#ifndef CONFIGURATION_H
 #define CONFIGURATION_H
 
 #include "boards.h"
 // startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
 // build by the user have been successfully uploaded into firmware.
 #define STRING_VERSION "1.0.3 dev"
-#define STRING_URL "reprap.org"
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
 #define STRING_CONFIG_H_AUTHOR "(none, default config)" // Who made the changes.
 #define STRING_SPLASH_LINE1 "v" STRING_VERSION // will be shown during bootup in line 1
   #define MOTHERBOARD BOARD_RAMPS_13_EFB
 #endif
 
-// Define this to set a custom name for your generic Mendel,
-// #define CUSTOM_MENDEL_NAME "This Mendel"
+// Optional custom name for your RepStrap or other custom machine
+// Displayed in the LCD "Ready" message
+// #define CUSTOM_MACHINE_NAME "3D Printer"
 
 // Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
 // You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)
 const bool X_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Y_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
+const bool Z_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
 //#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
 #define E_ENABLE_ON 0 // For all extruders
 
 // Disables axis when it's not being used.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
 //#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
-//#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
-                                               // 0 to disable buzzer feedback  
+//#define LCD_FEEDBACK_FREQUENCY_HZ 1000         // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
+                                                 // 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
 
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
 // http://reprap.org/wiki/PanelOne

Marlin/example_configurations/SCARA/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again
 //#define HEATERS_PARALLEL
 
 //===========================================================================
-//=============================Buffers           ============================
+//================================= Buffers =================================
 //===========================================================================
 
 // @section hidden

Marlin/example_configurations/WITBOX/Configuration.h

-#ifndef CONFIGURATION_H
+#ifndef CONFIGURATION_H
 #define CONFIGURATION_H
 
 #include "boards.h"
 // startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
 // build by the user have been successfully uploaded into firmware.
 #define STRING_VERSION "1.0.3 dev"
-#define STRING_URL "reprap.org"
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
 #define STRING_CONFIG_H_AUTHOR "(bq Witbox)" // Who made the changes.
 #define STRING_SPLASH_LINE1 "v" STRING_VERSION // will be shown during bootup in line 1
 
 // The following define selects which electronics board you have.
 // Please choose the name from boards.h that matches your setup
-#ifndef MOTHERBOARD
-  #define MOTHERBOARD BOARD_WITBOX
-#endif
+#define MOTHERBOARD BOARD_WITBOX
 
-// Define this to set a custom name for your generic Mendel,
-// #define CUSTOM_MENDEL_NAME "This Mendel"
+// Optional custom name for your RepStrap or other custom machine
+// Displayed in the LCD "Ready" message
+// #define CUSTOM_MACHINE_NAME "3D Printer"
 
 // Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
 // You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)
 const bool X_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Y_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
+const bool Z_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 //#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
 #define E_ENABLE_ON 0 // For all extruders
 
 // Disables axis when it's not being used.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z true
 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
 //#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
-//#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
-                                               // 0 to disable buzzer feedback  
+//#define LCD_FEEDBACK_FREQUENCY_HZ 1000         // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
+                                                 // 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
 
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
 // http://reprap.org/wiki/PanelOne

Marlin/example_configurations/WITBOX/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again
 //#define HEATERS_PARALLEL
 
 //===========================================================================
-//=============================Buffers           ============================
+//================================= Buffers =================================
 //===========================================================================
 
 // @section hidden

Marlin/example_configurations/delta/generic/Configuration.h

 // startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
 // build by the user have been successfully uploaded into firmware.
 #define STRING_VERSION "1.0.3 dev"
-#define STRING_URL "reprap.org"
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
 #define STRING_CONFIG_H_AUTHOR "(none, default config)" // Who made the changes.
 #define STRING_SPLASH_LINE1 "v" STRING_VERSION // will be shown during bootup in line 1
   #define MOTHERBOARD BOARD_RAMPS_13_EFB
 #endif
 
-// Define this to set a custom name for your generic Mendel,
-// #define CUSTOM_MENDEL_NAME "This Mendel"
+// Optional custom name for your RepStrap or other custom machine
+// Displayed in the LCD "Ready" message
+#define CUSTOM_MACHINE_NAME "Deltabot"
 
 // Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
 // You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)
 const bool X_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Y_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
+const bool Z_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 //#define DISABLE_MAX_ENDSTOPS
 #define DISABLE_MIN_ENDSTOPS // Deltas only use min endstops for probing
 
 #define E_ENABLE_ON 0 // For all extruders
 
 // Disables axis when it's not being used.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
 //#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
-//#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
-                                               // 0 to disable buzzer feedback  
+//#define LCD_FEEDBACK_FREQUENCY_HZ 1000         // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
+                                                 // 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
 
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
 // http://reprap.org/wiki/PanelOne

Marlin/example_configurations/delta/generic/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {10, 10, 20}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again
 //#define HEATERS_PARALLEL
 
 //===========================================================================
-//=============================Buffers           ============================
+//================================= Buffers =================================
 //===========================================================================
 
 // @section hidden

Marlin/example_configurations/delta/kossel_mini/Configuration.h

 // startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
 // build by the user have been successfully uploaded into firmware.
 #define STRING_VERSION "1.0.3 dev"
-#define STRING_URL "reprap.org"
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
 #define STRING_CONFIG_H_AUTHOR "(none, default config)" // Who made the changes.
 #define STRING_SPLASH_LINE1 "v" STRING_VERSION // will be shown during bootup in line 1
   #define MOTHERBOARD BOARD_RAMPS_13_EFB
 #endif
 
-// Define this to set a custom name for your generic Mendel,
-#define CUSTOM_MENDEL_NAME "Mini Kossel"
+// Optional custom name for your RepStrap or other custom machine
+// Displayed in the LCD "Ready" message
+#define CUSTOM_MACHINE_NAME "Mini Kossel"
 
 // Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
 // You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)
 const bool X_MAX_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
 const bool Y_MAX_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
 const bool Z_MAX_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
+const bool Z_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
 //#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS // Deltas only use min endstops for probing
 
 #define E_ENABLE_ON 0 // For all extruders
 
 // Disables axis when it's not being used.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
 //#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
-//#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
-                                               // 0 to disable buzzer feedback  
+//#define LCD_FEEDBACK_FREQUENCY_HZ 1000         // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
+                                                 // 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
 
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
 // http://reprap.org/wiki/PanelOne

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {10, 10, 20}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again
 //#define HEATERS_PARALLEL
 
 //===========================================================================
-//=============================Buffers           ============================
+//================================= Buffers =================================
 //===========================================================================
 
 // @section hidden

Marlin/example_configurations/makibox/Configuration.h

-#ifndef CONFIGURATION_H
+#ifndef CONFIGURATION_H
 #define CONFIGURATION_H
 
 #include "boards.h"
 // startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
 // build by the user have been successfully uploaded into firmware.
 #define STRING_VERSION "1.0.3 dev"
-#define STRING_URL "reprap.org"
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
 #define STRING_CONFIG_H_AUTHOR "(none, default config)" // Who made the changes.
 #define STRING_SPLASH_LINE1 "v" STRING_VERSION // will be shown during bootup in line 1
   #define MOTHERBOARD BOARD_5DPRINT
 #endif
 
-// Define this to set a custom name for your generic Mendel,
-// #define CUSTOM_MENDEL_NAME "This Mendel"
+// Optional custom name for your RepStrap or other custom machine
+// Displayed in the LCD "Ready" message
+// #define CUSTOM_MACHINE_NAME "3D Printer"
 
 // Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
 // You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)
 const bool X_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Y_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
+const bool Z_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
 //#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
 #define E_ENABLE_ON 0 // For all extruders
 
 // Disables axis when it's not being used.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
+
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
 //#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
-//#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
-                                               // 0 to disable buzzer feedback  
+//#define LCD_FEEDBACK_FREQUENCY_HZ 1000         // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
+                                                 // 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
 
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
 // http://reprap.org/wiki/PanelOne

Marlin/example_configurations/makibox/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again
 //#define HEATERS_PARALLEL
 
 //===========================================================================
-//=============================Buffers           ============================
+//================================= Buffers =================================
 //===========================================================================
 
 // @section hidden

Marlin/example_configurations/tvrrug/Round2/Configuration.h

-#ifndef CONFIGURATION_H
+#ifndef CONFIGURATION_H
 #define CONFIGURATION_H
 
 #include "boards.h"
 // startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
 // build by the user have been successfully uploaded into firmware.
 #define STRING_VERSION "1.0.3 dev"
-#define STRING_URL "reprap.org"
 #define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
 #define STRING_CONFIG_H_AUTHOR "(none, default config)" // Who made the changes.
 #define STRING_SPLASH_LINE1 "v" STRING_VERSION // will be shown during bootup in line 1
   #define MOTHERBOARD BOARD_OMCA
 #endif
 
-// Define this to set a custom name for your generic Mendel,
-// #define CUSTOM_MENDEL_NAME "This Mendel"
+// Optional custom name for your RepStrap or other custom machine
+// Displayed in the LCD "Ready" message
+// #define CUSTOM_MACHINE_NAME "3D Printer"
 
 // Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
 // You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)
 const bool X_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Y_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
+const bool Z_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 //#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
 #define E_ENABLE_ON 1 // For all extruders
 
 // Disables axis when it's not being used.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
+
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
 //#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
-//#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
-                                               // 0 to disable buzzer feedback  
+//#define LCD_FEEDBACK_FREQUENCY_HZ 1000         // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
+                                                 // 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
 
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
 // http://reprap.org/wiki/PanelOne

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again
 //#define HEATERS_PARALLEL
 
 //===========================================================================
-//=============================Buffers           ============================
+//================================= Buffers =================================
 //===========================================================================
 
 // @section hidden

Marlin/fonts/README.fonts

 Then run make_fonts.bat what calls bdf2u8g.exe with the needed parameters to produce the .h files.
 The .h files must be edited to replace '#include "u8g.h"' with '#include <utility/u8g.h>', replace 'U8G_FONT_SECTION' with 'U8G_SECTION', insert '.progmem.' right behind the first '"' and moved to the main directory.
 
-Especially the Kana and Cyrillic fonts should be revised by someone who knows what he/she does. I am only a west-European with very little knowledge about this scripts.
+How to integrate a new font:
+Currently we are limited to 256 symbols per font. We use a menu system with 5 lines, on a display with 64 pixel height. That means we have 12 pixel for a line. To have some space in between the lines we can't use more then 10 pixel height for the symbols. For up to 11 pixel set TALL_FONT_CORRECTION 1 when loading the font.
+To fit 22 Symbols on the 128 pixel wide screen, the symbols can't be wider than 5 pixel, for the first 128 symbols.
+For the second half of the font we now support up to 11x11 pixel. 
+
+ * Get 'Fony.exe'
+ * Copy one of the existing *.fon files and work with this.
+ * Change the pixels. Don't change width or height.
+ * Export as *.bdf
+ * Use 'bdf2u8g.exe' to produce the *.h file. Examples for the existing fonts are in 'make_fonts.bat'
+ * Edit the produced .h file to match our needs. See hints in 'README.fonts' or the other 'dogm_font_data_.h' files.
+ * Make a new entry in the font list in 'dogm_lcd_implementation.h' before the '#else // fall back'
+    #elif defined( DISPLAY_CHARSET_NEWNAME )
+      #include "dogm_font_data_yourfont.h"
+      #define FONT_MENU_NAME YOURFONTNAME
+    #else // fall-back
+ * Add your font to the list of permitted fonts in 'language_en.h'
+    ... || defined(DISPLAY_CHARSET_YOUR_NEW_FONT) ... )
+
+
+Especially the Kana font should be revised by someone who knows what he/she does. I am only a west-European with very little knowledge about this script.

Marlin/fonts/make_fonts.bat

 .\bdf2u8g.exe -b 32 -e 255 ISO10646-1.bdf ISO10646_1_5x7 dogm_font_data_ISO10646_1.h
 .\bdf2u8g.exe -b 32 -e 255 ISO10646_5_Cyrillic.bdf ISO10646_5_Cyrillic_5x7 dogm_font_data_ISO10646_5_Cyrillic.h
 .\bdf2u8g.exe -b 32 -e 255 ISO10646_Kana.bdf ISO10646_Kana_5x7 dogm_font_data_ISO10646_Kana.h
+.\bdf2u8g.exe -b 32 -e 255 ISO10646_CN.bdf ISO10646_CN dogm_font_data_ISO10646_CN.h

Marlin/language.h

 // eu       Basque-Euskera
 // kana     Japanese
 // kana_utf Japanese
+// cn       Chinese
 
 #ifndef LANGUAGE_INCLUDE
   // pick your language from the list above
   #endif
 #else
   #ifndef MACHINE_NAME
-    #define MACHINE_NAME "Mendel"
+    #define MACHINE_NAME "3D Printer"
   #endif
 #endif
 
 #ifdef CUSTOM_MENDEL_NAME
-  #warning CUSTOM_MENDEL_NAME deprecated - use CUSTOM_MACHINE_NAME
+  #error CUSTOM_MENDEL_NAME deprecated - use CUSTOM_MACHINE_NAME
   #define CUSTOM_MACHINE_NAME CUSTOM_MENDEL_NAME
 #endif
 
 
 // Serial Console Messages (do not translate those!)
 
-#define MSG_Enqueing                        "enqueing \""
+#define MSG_Enqueueing                      "enqueueing \""
 #define MSG_POWERUP                         "PowerUp"
 #define MSG_EXTERNAL_RESET                  " External Reset"
 #define MSG_BROWNOUT_RESET                  " Brown out Reset"
 #define MSG_PLANNER_BUFFER_BYTES            "  PlannerBufferBytes: "
 #define MSG_OK                              "ok"
 #define MSG_FILE_SAVED                      "Done saving file."
-#define MSG_ERR_LINE_NO                     "Line Number is not Last Line Number+1, Last Line: "
+#define MSG_ERR_LINE_NO1                    "Line Number out of sequence. Expected: "
+#define MSG_ERR_LINE_NO2                    " Got: "
 #define MSG_ERR_CHECKSUM_MISMATCH           "checksum mismatch, Last Line: "
 #define MSG_ERR_NO_CHECKSUM                 "No Checksum with line number, Last Line: "
 #define MSG_ERR_NO_LINENUMBER_WITH_CHECKSUM "No Line Number with checksum, Last Line: "
 #define MSG_Z_MAX                           "z_max: "
 #define MSG_Z2_MAX                          "z2_max: "
 #define MSG_Z_PROBE                         "z_probe: "
+#define MSG_ERR_MATERIAL_INDEX              "M145 S<index> out of range (0-1)"
+#define MSG_ERR_M421_REQUIRES_XYZ           "M421 requires XYZ parameters"
+#define MSG_ERR_MESH_INDEX_OOB              "Mesh XY index is out of bounds"
 #define MSG_M119_REPORT                     "Reporting endstop status"
 #define MSG_ENDSTOP_HIT                     "TRIGGERED"
 #define MSG_ENDSTOP_OPEN                    "open"
 #define MSG_OK_B                            "ok B:"
 #define MSG_OK_T                            "ok T:"
 #define MSG_AT                              " @:"
-#define MSG_PID_AUTOTUNE_FINISHED           MSG_PID_AUTOTUNE " finished! Put the last Kp, Ki and Kd constants from above into Configuration.h"
+#define MSG_PID_AUTOTUNE_FINISHED           MSG_PID_AUTOTUNE " finished! Put the last Kp, Ki and Kd constants from below into Configuration.h"
 #define MSG_PID_DEBUG                       " PID_DEBUG "
 #define MSG_PID_DEBUG_INPUT                 ": Input "
 #define MSG_PID_DEBUG_OUTPUT                " Output "

Marlin/language_cn.h

+/**
+ * Chinese
+ *
+ * LCD Menu Messages
+ * Se also documentation/LCDLanguageFont.md
+ *
+ */
+#ifndef LANGUAGE_CN_H
+#define LANGUAGE_CN_H
+
+  #define MAPPER_NON         // For direct asci codes
+  #define DISPLAY_CHARSET_ISO10646_CN
+
+  #define WELCOME_MSG                         "\xa4\xa5\xa6\xa7"
+  #define MSG_SD_INSERTED                     "\xa8\xa9\xaa\xab"
+  #define MSG_SD_REMOVED                      "\xa8\xa9\xac\xad"
+  #define MSG_MAIN                            "\xae\xaf\xb0"
+  #define MSG_AUTOSTART                       "\xb1\xb2\xb3\xb4"
+  #define MSG_DISABLE_STEPPERS                "\xb5\xb6\xb7\xb8\xb9\xba"
+  #define MSG_AUTO_HOME                       "\xbb\xbc\xbd"
+  #define MSG_SET_HOME_OFFSETS                "\xbe\xbf\xbb\xbc\xbd\xc0\xc1"
+  #define MSG_SET_ORIGIN                      "\xbe\xbf\xbc\xbd"
+  #define MSG_PREHEAT_PLA                     "\xc3\xc4 PLA"
+  #define MSG_PREHEAT_PLA_N                   MSG_PREHEAT_PLA " "
+  #define MSG_PREHEAT_PLA_ALL                 MSG_PREHEAT_PLA " \xc5\xc6"
+  #define MSG_PREHEAT_PLA_BEDONLY             MSG_PREHEAT_PLA " \xc4\xc7"
+  #define MSG_PREHEAT_PLA_SETTINGS            MSG_PREHEAT_PLA " \xbe\xbf"
+  #define MSG_PREHEAT_ABS                     "\xc3\xc4 ABS"
+  #define MSG_PREHEAT_ABS_N                   MSG_PREHEAT_ABS " "
+  #define MSG_PREHEAT_ABS_ALL                 MSG_PREHEAT_ABS " \xc5\xc6"
+  #define MSG_PREHEAT_ABS_BEDONLY             MSG_PREHEAT_ABS " \xbe\xc6"
+  #define MSG_PREHEAT_ABS_SETTINGS            MSG_PREHEAT_ABS " \xbe\xbf"
+  #define MSG_H1                              "1"
+  #define MSG_H2                              "2"
+  #define MSG_H3                              "3"
+  #define MSG_H4                              "4"
+  #define MSG_COOLDOWN                        "\xc8\xc9"
+  #define MSG_SWITCH_PS_ON                    "\xb9\xcb\xca\xb3"
+  #define MSG_SWITCH_PS_OFF                   "\xb9\xcb\xb5\xb6"
+  #define MSG_EXTRUDE                         "\xcc\xad"
+  #define MSG_RETRACT                         "\xbb\xcd"
+  #define MSG_MOVE_AXIS                       "\xc1\xb2\xce"
+  #define MSG_LEVEL_BED                       "\xcf\xe0\xc4\xc7"
+  #define MSG_MOVE_X                          "\xc1\xb2 X"
+  #define MSG_MOVE_Y                          "\xc1\xb2 Y"
+  #define MSG_MOVE_Z                          "\xc1\xb2 Z"
+  #define MSG_MOVE_E                          "\xcc\xad\xba"
+  #define MSG_MOVE_01MM                       "\xc1\xb2 0.1mm"
+  #define MSG_MOVE_1MM                        "\xc1\xb2 1mm"
+  #define MSG_MOVE_10MM                       "\xc1\xb2 10mm"
+  #define MSG_SPEED                           "\xd1\xd2"
+  #define MSG_NOZZLE                          "\xd3\xd4"
+  #define MSG_N2                              " 2"
+  #define MSG_N3                              " 3"
+  #define MSG_N4                              " 4"
+  #define MSG_BED                             "\xc4\xc7"
+  #define MSG_FAN_SPEED                       "\xd5\xd6\xd1\xd2"
+  #define MSG_FLOW                            "\xcc\xad\xd1\xd2"
+  #define MSG_F0                              " 0"
+  #define MSG_F1                              " 1"
+  #define MSG_F2                              " 2"
+  #define MSG_F3                              " 3"
+  #define MSG_CONTROL                         "\xd8\xd9"
+  #define MSG_MIN                             LCD_STR_THERMOMETER " \xda\xdb"
+  #define MSG_MAX                             LCD_STR_THERMOMETER " \xda\xdc"
+  #define MSG_FACTOR                          LCD_STR_THERMOMETER " \xdd\xde"
+  #define MSG_AUTOTEMP                        "\xb1\xb2\xd8\xc9"
+  #define MSG_ON                              "\xb3 "  // intentional space to shift wide symbol to the left
+  #define MSG_OFF                             "\xb5 "  // intentional space to shift wide symbol to the left
+  #define MSG_PID_P                           "PID-P"
+  #define MSG_PID_I                           "PID-I"
+  #define MSG_PID_D                           "PID-D"
+  #define MSG_PID_C                           "PID-C"
+  #define MSG_E2                              " E2"
+  #define MSG_E3                              " E3"
+  #define MSG_E4                              " E4"
+  #define MSG_ACC                             "Accel"
+  #define MSG_VXY_JERK                        "Vxy-jerk"
+  #define MSG_VZ_JERK                         "Vz-jerk"
+  #define MSG_VE_JERK                         "Ve-jerk"
+  #define MSG_VMAX                            "Vmax "
+  #define MSG_X                               "x"
+  #define MSG_Y                               "y"
+  #define MSG_Z                               "z"
+  #define MSG_E                               "e"
+  #define MSG_VMIN                            "Vmin"
+  #define MSG_VTRAV_MIN                       "VTrav min"
+  #define MSG_AMAX                            "Amax "
+  #define MSG_A_RETRACT                       "A-retract"
+  #define MSG_A_TRAVEL                        "A-travel"
+  #define MSG_XSTEPS                          "Xsteps/mm"
+  #define MSG_YSTEPS                          "Ysteps/mm"
+  #define MSG_ZSTEPS                          "Zsteps/mm"
+  #define MSG_ESTEPS                          "Esteps/mm"
+  #define MSG_TEMPERATURE                     "\xc9\xd2"
+  #define MSG_MOTION                          "\xdf\xb2"
+  #define MSG_VOLUMETRIC                      "Filament"
+  #define MSG_VOLUMETRIC_ENABLED              "E in mm3"
+  #define MSG_FILAMENT_SIZE_EXTRUDER_0        "Fil. Dia. 1"
+  #define MSG_FILAMENT_SIZE_EXTRUDER_1        "Fil. Dia. 2"
+  #define MSG_FILAMENT_SIZE_EXTRUDER_2        "Fil. Dia. 3"
+  #define MSG_FILAMENT_SIZE_EXTRUDER_3        "Fil. Dia. 4"
+  #define MSG_CONTRAST                        "LCD contrast"
+  #define MSG_STORE_EPROM                     "Store memory"
+  #define MSG_LOAD_EPROM                      "Load memory"
+  #define MSG_RESTORE_FAILSAFE                "Restore failsafe"
+  #define MSG_REFRESH                         "Refresh"
+  #define MSG_WATCH                           "\xec\xed\xee\xef"
+  #define MSG_PREPARE                         "\xa4\xa5"
+  #define MSG_TUNE                            "\xcf\xf0"
+  #define MSG_PAUSE_PRINT                     "\xf1\xf2\xca\xf3"
+  #define MSG_RESUME_PRINT                    "\xf4\xf5\xca\xf3"
+  #define MSG_STOP_PRINT                      "\xf2\xf6\xca\xf3"
+  #define MSG_CARD_MENU                       "\xaf\xb0"
+  #define MSG_NO_CARD                         "\xf9\xa8"
+  #define MSG_DWELL                           "Sleep..."
+  #define MSG_USERWAIT                        "Wait for user..."
+  #define MSG_RESUMING                        "Resuming print"
+  #define MSG_PRINT_ABORTED                   "Print aborted"
+  #define MSG_NO_MOVE                         "No move."
+  #define MSG_KILLED                          "KILLED. "
+  #define MSG_STOPPED                         "STOPPED. "
+  #define MSG_CONTROL_RETRACT                 "Retract mm"
+  #define MSG_CONTROL_RETRACT_SWAP            "Swap Re.mm"
+  #define MSG_CONTROL_RETRACTF                "Retract  V"
+  #define MSG_CONTROL_RETRACT_ZLIFT           "Hop mm"
+  #define MSG_CONTROL_RETRACT_RECOVER         "UnRet +mm"
+  #define MSG_CONTROL_RETRACT_RECOVER_SWAP    "S UnRet+mm"
+  #define MSG_CONTROL_RETRACT_RECOVERF        "UnRet  V"
+  #define MSG_AUTORETRACT                     "AutoRetr."
+  #define MSG_FILAMENTCHANGE                  "Change filament"
+  #define MSG_INIT_SDCARD                     "Init. SD card"
+  #define MSG_CNG_SDCARD                      "Change SD card"
+  #define MSG_ZPROBE_OUT                      "Z probe out. bed"
+  #define MSG_POSITION_UNKNOWN                "Home X/Y before Z"
+  #define MSG_ZPROBE_ZOFFSET                  "Z Offset"
+  #define MSG_BABYSTEP_X                      "Babystep X"
+  #define MSG_BABYSTEP_Y                      "Babystep Y"
+  #define MSG_BABYSTEP_Z                      "Babystep Z"
+  #define MSG_ENDSTOP_ABORT                   "Endstop abort"
+  #define MSG_HEATING_FAILED_LCD              "Heating failed"
+  #define MSG_ERR_REDUNDANT_TEMP              "Err: REDUNDANT TEMP ERROR"
+  #define MSG_THERMAL_RUNAWAY                 "THERMAL RUNAWAY"
+  #define MSG_ERR_MAXTEMP                     "Err: MAXTEMP"
+  #define MSG_ERR_MINTEMP                     "Err: MINTEMP"
+  #define MSG_ERR_MAXTEMP_BED                 "Err: MAXTEMP BED"
+  #define MSG_END_HOUR                        "hours"
+  #define MSG_END_MINUTE                      "minutes"
+
+  #ifdef DELTA_CALIBRATION_MENU
+    #define MSG_DELTA_CALIBRATE             "Delta Calibration"
+    #define MSG_DELTA_CALIBRATE_X           "Calibrate X"
+    #define MSG_DELTA_CALIBRATE_Y           "Calibrate Y"
+    #define MSG_DELTA_CALIBRATE_Z           "Calibrate Z"
+    #define MSG_DELTA_CALIBRATE_CENTER      "Calibrate Center"
+  #endif // DELTA_CALIBRATION_MENU
+
+#endif // LANGUAGE_CN_H
+

Marlin/language_de.h

 //#define SIMULATE_ROMFONT
 #define DISPLAY_CHARSET_ISO10646_1
 
-#define WELCOME_MSG                         MACHINE_NAME " Bereit."
+#define WELCOME_MSG                         MACHINE_NAME " bereit."
 #define MSG_SD_INSERTED                     "SDKarte erkannt."
 #define MSG_SD_REMOVED                      "SDKarte entfernt."
 #define MSG_MAIN                            "Hauptmenü"
 #define MSG_PID_D                           "PID D"
 #define MSG_PID_C                           "PID C"
 #define MSG_ACC                             "A"
-#define MSG_VXY_JERK                        "V xy jerk"
-#define MSG_VZ_JERK                         "V z  jerk"
-#define MSG_VE_JERK                         "V e  jerk"
+#define MSG_VXY_JERK                        "V xy Ruck"
+#define MSG_VZ_JERK                         "V z  Ruck"
+#define MSG_VE_JERK                         "V e  Ruck"
 #define MSG_VMAX                            "V max " // space by purpose
 #define MSG_X                               "x"
 #define MSG_Y                               "y"
 #define MSG_FILAMENT_SIZE_EXTRUDER_0        "Filament D 1"
 #define MSG_FILAMENT_SIZE_EXTRUDER_1        "Filament D 2"
 #define MSG_FILAMENT_SIZE_EXTRUDER_2        "Filament D 3"
-#define MSG_CONTRAST                        "LCD contrast"
+#define MSG_CONTRAST                        "LCD Kontrast"
 #define MSG_STORE_EPROM                     "EPROM speichern"
 #define MSG_LOAD_EPROM                      "EPROM laden"
 #define MSG_RESTORE_FAILSAFE                "Standardkonfig."
 #define MSG_INIT_SDCARD                     "SDKarte erkennen"// Manually initialize the SD-card via user interface
 #define MSG_CNG_SDCARD                      "SDKarte erkennen"// SD-card changed by user. For machines with no autocarddetect. Both send "M21"
 #define MSG_ZPROBE_OUT                      "Sensor ausserhalb"
-#define MSG_POSITION_UNKNOWN                "X/Y vor Z Homen."
+#define MSG_POSITION_UNKNOWN                "X/Y vor Z homen."
 #define MSG_ZPROBE_ZOFFSET                  "Z Offset"
 #define MSG_BABYSTEP_X                      "Babystep X"
 #define MSG_BABYSTEP_Y                      "Babystep Y"
 #define MSG_END_MINUTE                      "Minuten"
 
 #ifdef DELTA_CALIBRATION_MENU
-    #define MSG_DELTA_CALIBRATE             "Delta Kalibrieren"
+    #define MSG_DELTA_CALIBRATE             "Delta kalibrieren"
     #define MSG_DELTA_CALIBRATE_X           "Kalibriere X"
     #define MSG_DELTA_CALIBRATE_Y           "Kalibriere Y"
     #define MSG_DELTA_CALIBRATE_Z           "Kalibriere Z"

Marlin/language_en.h

 #endif
 
 //#define SIMULATE_ROMFONT //Comment in to see what is seen on the character based displays
-#if !( defined(SIMULATE_ROMFONT)|| defined(DISPLAY_CHARSET_ISO10646_1)|| defined(DISPLAY_CHARSET_ISO10646_5)|| defined(DISPLAY_CHARSET_ISO10646_KANA) )
+#if !( defined(SIMULATE_ROMFONT)|| defined(DISPLAY_CHARSET_ISO10646_1)|| defined(DISPLAY_CHARSET_ISO10646_5)|| defined(DISPLAY_CHARSET_ISO10646_KANA)|| defined(DISPLAY_CHARSET_ISO10646_CN) )
   #define DISPLAY_CHARSET_ISO10646_1 // use the better font on full graphic displays.
 #endif
 

Marlin/language_es.h

 #define MSG_SD_INSERTED                     "Tarjeta colocada"
 #define MSG_SD_REMOVED                      "Tarjeta retirada"
 #define MSG_MAIN                            "Menu principal"
-#define MSG_AUTOSTART                       " Autostart"
+#define MSG_AUTOSTART                       "Autostart"
 #define MSG_DISABLE_STEPPERS                "Apagar motores"
 #define MSG_AUTO_HOME                       "Llevar al origen"
 #define MSG_SET_HOME_OFFSETS                "Ajustar offsets"
 #define MSG_MOVE_1MM                        "Mover 1mm"
 #define MSG_MOVE_10MM                       "Mover 10mm"
 #define MSG_SPEED                           "Velocidad"
-#define MSG_NOZZLE                          "Nozzle"
+#define MSG_NOZZLE                          "Fusor"
 #define MSG_BED                             "Base"
 #define MSG_FAN_SPEED                       "Ventilador"
 #define MSG_FLOW                            "Flujo"
 #define MSG_ESTEPS                          "E pasos/mm"
 #define MSG_TEMPERATURE                     "Temperatura"
 #define MSG_MOTION                          "Movimiento"
-#define MSG_VOLUMETRIC                      "Filament"
+#define MSG_VOLUMETRIC                      "Filamento"
 #define MSG_VOLUMETRIC_ENABLED		        "E in mm3"
 #define MSG_FILAMENT_SIZE_EXTRUDER_0        "Fil. Dia. 1"
 #define MSG_FILAMENT_SIZE_EXTRUDER_1        "Fil. Dia. 2"
 #define MSG_FILAMENTCHANGE                  "Cambiar filamento"
 #define MSG_INIT_SDCARD                     "Iniciando tarjeta"
 #define MSG_CNG_SDCARD                      "Cambiar tarjeta"
-#define MSG_ZPROBE_OUT                      "sonda Z fuera"
+#define MSG_ZPROBE_OUT                      "Sonda Z fuera"
 #define MSG_POSITION_UNKNOWN                "Reiniciar X/Y y Z"
 #define MSG_ZPROBE_ZOFFSET                  "Offset Z"
-#define MSG_BABYSTEP_X                      "Babystep X"
-#define MSG_BABYSTEP_Y                      "Babystep Y"
-#define MSG_BABYSTEP_Z                      "Babystep Z"
+#define MSG_BABYSTEP_X                      "Micropaso X"
+#define MSG_BABYSTEP_Y                      "Micropaso Y"
+#define MSG_BABYSTEP_Z                      "Micropaso Z"
 #define MSG_ENDSTOP_ABORT                   "Endstop abort"
 #define MSG_END_HOUR                        "horas"
 #define MSG_END_MINUTE                      "minutos"
 
 #ifdef DELTA_CALIBRATION_MENU
-    #define MSG_DELTA_CALIBRATE             "Delta Calibration"
-    #define MSG_DELTA_CALIBRATE_X           "Calibrate X"
-    #define MSG_DELTA_CALIBRATE_Y           "Calibrate Y"
-    #define MSG_DELTA_CALIBRATE_Z           "Calibrate Z"
-    #define MSG_DELTA_CALIBRATE_CENTER      "Calibrate Center"
+    #define MSG_DELTA_CALIBRATE             "Calibracion Delta"
+    #define MSG_DELTA_CALIBRATE_X           "Calibrar X"
+    #define MSG_DELTA_CALIBRATE_Y           "Calibrar Y"
+    #define MSG_DELTA_CALIBRATE_Z           "Calibrar Z"
+    #define MSG_DELTA_CALIBRATE_CENTER      "Calibrar Centro"
 #endif // DELTA_CALIBRATION_MENU
 
 #endif // LANGUAGE_ES_H

Marlin/pins.h

   #include "pins_PRINTRBOARD.h"
 #elif MB(BRAINWAVE)
   #include "pins_BRAINWAVE.h"
+#elif MB(BRAINWAVE_PRO)
+  #include "pins_BRAINWAVE_PRO.h"
 #elif MB(SAV_MKI)
   #include "pins_SAV_MKI.h"
 #elif MB(TEENSY2)

Marlin/pins_AZTEEG_X3.h

    #define STAT_LED_RED 64
    #define STAT_LED_BLUE 63
   #endif
-#endif
-
-#elif define TEMP_STAT_LEDS
+#elif defined(TEMP_STAT_LEDS)
   #define STAT_LED_RED       6
   #define STAT_LED_BLUE     11
 #endif

Marlin/pins_BRAINWAVE_PRO.h

+/**
+ * Brainwave Pro pin assignments (AT90USB186)
+ *
+ * Requires hardware bundle for Arduino:
+ * https://github.com/unrepentantgeek/brainwave-arduino
+ */
+
+#ifndef __AVR_AT90USB1286__
+  #error Oops!  Make sure you have 'Brainwave Pro' selected from the 'Tools -> Boards' menu.
+#endif
+
+#ifndef AT90USBxx_TEENSYPP_ASSIGNMENTS  // use Teensyduino Teensy++2.0 pin assignments instead of Marlin alphabetical.
+  #error  Uncomment #define AT90USBxx_TEENSYPP_ASSIGNMENTS in fastio.h for this config
+#endif
+
+#define AT90USB 1286  // Disable MarlinSerial etc.
+
+#define X_STEP_PIN         33
+#define X_DIR_PIN          32
+#define X_ENABLE_PIN       11
+#define X_STOP_PIN         47
+
+#define Y_STEP_PIN         31
+#define Y_DIR_PIN          30
+#define Y_ENABLE_PIN        8
+#define Y_STOP_PIN         18
+
+#define Z_STEP_PIN         29
+#define Z_DIR_PIN          28
+#define Z_ENABLE_PIN       37
+#define Z_MAX_PIN          36
+#define Z_MIN_PIN          17  // Bed probe
+
+#define E0_STEP_PIN        35
+#define E0_DIR_PIN         34
+#define E0_ENABLE_PIN      13
+
+#define HEATER_0_PIN       15
+#define HEATER_1_PIN       -1
+#define HEATER_2_PIN       -1
+#define HEATER_BED_PIN     14  // Bed
+#define FAN_PIN            16  // Fan, PWM
+
+#define TEMP_0_PIN          2  // Extruder / Analog pin numbering
+#define TEMP_1_PIN          1  // Spare / Analog pin numbering
+#define TEMP_2_PIN         -1
+#define TEMP_BED_PIN        0  // Bed / Analog pin numbering
+
+#define SDPOWER            -1
+#define SDSS               20
+#define LED_PIN            19
+#define PS_ON_PIN          -1
+#define KILL_PIN           -1
+#define ALARM_PIN          -1
+#define SDCARDDETECT       12
+
+#ifndef SDSUPPORT
+// these pins are defined in the SD library if building with SD support
+  #define SCK_PIN          21
+  #define MISO_PIN         23
+  #define MOSI_PIN         22
+#endif
+

Marlin/pins_SAV_MKI.h

   #define HOME_PIN          -1 // A4 = marlin 44 - teensy = 42
 
   #ifdef NUM_SERVOS
-    #define SERVO0_PIN       41 // In teensy's pin definition for pinMode (in Servo.cpp)
+    #define SERVO0_PIN       41 // In teensy's pin definition for pinMode (in servo.cpp)
   #endif
 
 #endif // SAV_3DLCD

Marlin/planner.cpp

-/*
-  planner.c - buffers movement commands and manages the acceleration profile plan
- Part of Grbl
- 
- Copyright (c) 2009-2011 Simen Svale Skogsrud
- 
- Grbl is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
- 
- Grbl is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
- 
- You should have received a copy of the GNU General Public License
- along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* The ring buffer implementation gleaned from the wiring_serial library by David A. Mellis. */
-
-/*  
- Reasoning behind the mathematics in this module (in the key of 'Mathematica'):
- 
- s == speed, a == acceleration, t == time, d == distance
- 
- Basic definitions:
- 
- Speed[s_, a_, t_] := s + (a*t) 
- Travel[s_, a_, t_] := Integrate[Speed[s, a, t], t]
- 
- Distance to reach a specific speed with a constant acceleration:
- 
- Solve[{Speed[s, a, t] == m, Travel[s, a, t] == d}, d, t]
- d -> (m^2 - s^2)/(2 a) --> estimate_acceleration_distance()
- 
- Speed after a given distance of travel with constant acceleration:
- 
- Solve[{Speed[s, a, t] == m, Travel[s, a, t] == d}, m, t]
- m -> Sqrt[2 a d + s^2]    
- 
- DestinationSpeed[s_, a_, d_] := Sqrt[2 a d + s^2]
- 
- When to start braking (di) to reach a specified destionation speed (s2) after accelerating
- from initial speed s1 without ever stopping at a plateau:
- 
- Solve[{DestinationSpeed[s1, a, di] == DestinationSpeed[s2, a, d - di]}, di]
- di -> (2 a d - s1^2 + s2^2)/(4 a) --> intersection_distance()
- 
- IntersectionDistance[s1_, s2_, a_, d_] := (2 a d - s1^2 + s2^2)/(4 a)
+/**
+ * planner.cpp - Buffer movement commands and manage the acceleration profile plan
+ * Part of Grbl
+ * 
+ * Copyright (c) 2009-2011 Simen Svale Skogsrud
+ *
+ * Grbl is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Grbl is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ * The ring buffer implementation gleaned from the wiring_serial library by David A. Mellis.
+ *
+ *
+ * Reasoning behind the mathematics in this module (in the key of 'Mathematica'):
+ *
+ * s == speed, a == acceleration, t == time, d == distance
+ *
+ * Basic definitions:
+ *   Speed[s_, a_, t_] := s + (a*t)
+ *   Travel[s_, a_, t_] := Integrate[Speed[s, a, t], t]
+ *
+ * Distance to reach a specific speed with a constant acceleration:
+ *   Solve[{Speed[s, a, t] == m, Travel[s, a, t] == d}, d, t]
+ *   d -> (m^2 - s^2)/(2 a) --> estimate_acceleration_distance()
+ *
+ * Speed after a given distance of travel with constant acceleration:
+ *   Solve[{Speed[s, a, t] == m, Travel[s, a, t] == d}, m, t]
+ *   m -> Sqrt[2 a d + s^2]
+ *
+ * DestinationSpeed[s_, a_, d_] := Sqrt[2 a d + s^2]
+ *
+ * When to start braking (di) to reach a specified destination speed (s2) after accelerating
+ * from initial speed s1 without ever stopping at a plateau:
+ *   Solve[{DestinationSpeed[s1, a, di] == DestinationSpeed[s2, a, d - di]}, di]
+ *   di -> (2 a d - s1^2 + s2^2)/(4 a) --> intersection_distance()
+ *
+ * IntersectionDistance[s1_, s2_, a_, d_] := (2 a d - s1^2 + s2^2)/(4 a)
+ *
  */
 
 #include "Marlin.h"
 
 #ifdef MESH_BED_LEVELING
   #include "mesh_bed_leveling.h"
-#endif  // MESH_BED_LEVELING
+#endif
 
 //===========================================================================
 //============================= public variables ============================
 //===========================================================================
 
-unsigned long minsegmenttime;
+millis_t minsegmenttime;
 float max_feedrate[NUM_AXIS]; // Max speeds in mm per minute
 float axis_steps_per_unit[NUM_AXIS];
 unsigned long max_acceleration_units_per_sq_second[NUM_AXIS]; // Use M201 to override by software
 float minimumfeedrate;
-float acceleration;         // Normal acceleration mm/s^2  THIS IS THE DEFAULT ACCELERATION for all printing moves. M204 SXXXX
-float retract_acceleration; //  mm/s^2   filament pull-pack and push-forward  while standing still in the other axis M204 TXXXX
-float travel_acceleration;  // Travel acceleration mm/s^2  THIS IS THE DEFAULT ACCELERATION for all NON printing moves. M204 MXXXX
-float max_xy_jerk; //speed than can be stopped at once, if i understand correctly.
+float acceleration;         // Normal acceleration mm/s^2  DEFAULT ACCELERATION for all printing moves. M204 SXXXX
+float retract_acceleration; // Retract acceleration mm/s^2 filament pull-back and push-forward while standing still in the other axes M204 TXXXX
+float travel_acceleration;  // Travel acceleration mm/s^2  DEFAULT ACCELERATION for all NON printing moves. M204 MXXXX
+float max_xy_jerk;          // The largest speed change requiring no acceleration
 float max_z_jerk;
 float max_e_jerk;
 float mintravelfeedrate;
 unsigned long axis_steps_per_sqr_second[NUM_AXIS];
 
 #ifdef ENABLE_AUTO_BED_LEVELING
-  // this holds the required transform to compensate for bed level
+  // Transform required to compensate for bed level
   matrix_3x3 plan_bed_level_matrix = {
     1.0, 0.0, 0.0,
     0.0, 1.0, 0.0,
   };
 #endif // ENABLE_AUTO_BED_LEVELING
 
-// The current position of the tool in absolute steps
-long position[NUM_AXIS];   //rescaled from extern when axis_steps_per_unit are changed by gcode
-static float previous_speed[NUM_AXIS]; // Speed of previous path line segment
-static float previous_nominal_speed; // Nominal speed of previous path line segment
-
 #ifdef AUTOTEMP
   float autotemp_max = 250;
   float autotemp_min = 210;
   bool autotemp_enabled = false;
 #endif
 
-unsigned char g_uc_extruder_last_move[4] = {0,0,0,0};
-
 //===========================================================================
-//=================semi-private variables, used in inline  functions    =====
+//============ semi-private variables, used in inline functions =============
 //===========================================================================
+
 block_t block_buffer[BLOCK_BUFFER_SIZE];            // A ring buffer for motion instfructions
 volatile unsigned char block_buffer_head;           // Index of the next block to be pushed
 volatile unsigned char block_buffer_tail;           // Index of the block to process now
 
 //===========================================================================
-//=============================private variables ============================
+//============================ private variables ============================
 //===========================================================================
-#ifdef PREVENT_DANGEROUS_EXTRUDE
-  float extrude_min_temp = EXTRUDE_MINTEMP;
-#endif
+
+// The current position of the tool in absolute steps
+long position[NUM_AXIS];               // Rescaled from extern when axis_steps_per_unit are changed by gcode
+static float previous_speed[NUM_AXIS]; // Speed of previous path line segment
+static float previous_nominal_speed;   // Nominal speed of previous path line segment
+
+unsigned char g_uc_extruder_last_move[4] = {0,0,0,0};
+
 #ifdef XY_FREQUENCY_LIMIT
   // Used for the frequency limit
   #define MAX_FREQ_TIME (1000000.0/XY_FREQUENCY_LIMIT)
   static char meas_sample; //temporary variable to hold filament measurement sample
 #endif
 
+//===========================================================================
+//================================ functions ================================
+//===========================================================================
+
 // Get the next / previous index of the next block in the ring buffer
 // NOTE: Using & here (not %) because BLOCK_BUFFER_SIZE is always a power of 2
 FORCE_INLINE int8_t next_block_index(int8_t block_index) { return BLOCK_MOD(block_index + 1); }
 FORCE_INLINE int8_t prev_block_index(int8_t block_index) { return BLOCK_MOD(block_index - 1); }
 
-//===========================================================================
-//================================ Functions ================================
-//===========================================================================
-
 // Calculates the distance (not time) it takes to accelerate from initial_rate to target_rate using the 
 // given acceleration:
 FORCE_INLINE float estimate_acceleration_distance(float initial_rate, float target_rate, float acceleration) {
   unsigned long final_rate = ceil(block->nominal_rate * exit_factor); // (step/min)
 
   // Limit minimal step rate (Otherwise the timer will overflow.)
-  if (initial_rate < 120) initial_rate = 120;
-  if (final_rate < 120) final_rate = 120;
+  NOLESS(initial_rate, 120);
+  NOLESS(final_rate, 120);
 
   long acceleration = block->acceleration_st;
   int32_t accelerate_steps = ceil(estimate_acceleration_distance(initial_rate, block->nominal_rate, acceleration));
     }
 
     float t = autotemp_min + high * autotemp_factor;
-    if (t < autotemp_min) t = autotemp_min;
-    if (t > autotemp_max) t = autotemp_max;
-    if (oldt > t) t = AUTOTEMP_OLDWEIGHT * oldt + (1 - AUTOTEMP_OLDWEIGHT) * t;
+    t = constrain(t, autotemp_min, autotemp_max);
+    if (oldt > t) {
+      t *= (1 - AUTOTEMP_OLDWEIGHT);
+      t += AUTOTEMP_OLDWEIGHT * oldt;
+    }
     oldt = t;
     setTargetHotend0(t);
   }
 #endif
 
 void check_axes_activity() {
-  unsigned char axis_active[NUM_AXIS],
+  unsigned char axis_active[NUM_AXIS] = { 0 },
                 tail_fan_speed = fanSpeed;
   #ifdef BARICUDA
     unsigned char tail_valve_pressure = ValvePressure,
 
   #if HAS_FAN
     #ifdef FAN_KICKSTART_TIME
-      static unsigned long fan_kick_end;
+      static millis_t fan_kick_end;
       if (tail_fan_speed) {
         if (fan_kick_end == 0) {
           // Just starting up fan - run at full power.
 
   #ifdef PREVENT_DANGEROUS_EXTRUDE
     if (de) {
-      if (degHotend(active_extruder) < extrude_min_temp) {
-        position[E_AXIS] = target[E_AXIS]; //behave as if the move really took place, but ignore E part
+      if (degHotend(extruder) < extrude_min_temp) {
+        position[E_AXIS] = target[E_AXIS]; // Behave as if the move really took place, but ignore E part
         de = 0; // no difference
         SERIAL_ECHO_START;
         SERIAL_ECHOLNPGM(MSG_ERR_COLD_EXTRUDE_STOP);
 
   block->steps[Z_AXIS] = labs(dz);
   block->steps[E_AXIS] = labs(de);
-  block->steps[E_AXIS] *= volumetric_multiplier[active_extruder];
-  block->steps[E_AXIS] *= extruder_multiply[active_extruder];
+  block->steps[E_AXIS] *= volumetric_multiplier[extruder];
+  block->steps[E_AXIS] *= extruder_multiply[extruder];
   block->steps[E_AXIS] /= 100;
   block->step_event_count = max(block->steps[X_AXIS], max(block->steps[Y_AXIS], max(block->steps[Z_AXIS], block->steps[E_AXIS])));
 
     }
   }
 
-  if (block->steps[E_AXIS]) {
-    if (feed_rate < minimumfeedrate) feed_rate = minimumfeedrate;
-  }
-  else if (feed_rate < mintravelfeedrate) feed_rate = mintravelfeedrate;
+  if (block->steps[E_AXIS])
+    NOLESS(feed_rate, minimumfeedrate);
+  else
+    NOLESS(feed_rate, mintravelfeedrate);
 
   /**
    * This part of the code calculates the total length of the movement. 
     delta_mm[Y_AXIS] = dy / axis_steps_per_unit[Y_AXIS];
   #endif
   delta_mm[Z_AXIS] = dz / axis_steps_per_unit[Z_AXIS];
-  delta_mm[E_AXIS] = (de / axis_steps_per_unit[E_AXIS]) * volumetric_multiplier[active_extruder] * extruder_multiply[active_extruder] / 100.0;
+  delta_mm[E_AXIS] = (de / axis_steps_per_unit[E_AXIS]) * volumetric_multiplier[extruder] * extruder_multiply[extruder] / 100.0;
 
   if (block->steps[X_AXIS] <= dropsegments && block->steps[Y_AXIS] <= dropsegments && block->steps[Z_AXIS] <= dropsegments) {
     block->millimeters = fabs(delta_mm[E_AXIS]);
   st_set_e_position(position[E_AXIS]);
 }
 
-#ifdef PREVENT_DANGEROUS_EXTRUDE
-  void set_extrude_min_temp(float temp) { extrude_min_temp = temp; }
-#endif
-
 // Calculate the steps/s^2 acceleration rates, based on the mm/s^s
 void reset_acceleration_rates() {
   for (int i = 0; i < NUM_AXIS; i++)

Marlin/planner.h

 
 void plan_set_e_position(const float &e);
 
-extern unsigned long minsegmenttime;
-extern float max_feedrate[NUM_AXIS]; // set the max speeds
+//===========================================================================
+//============================= public variables ============================
+//===========================================================================
+
+extern millis_t minsegmenttime;
+extern float max_feedrate[NUM_AXIS]; // Max speeds in mm per minute
 extern float axis_steps_per_unit[NUM_AXIS];
 extern unsigned long max_acceleration_units_per_sq_second[NUM_AXIS]; // Use M201 to override by software
 extern float minimumfeedrate;
-extern float acceleration;         // Normal acceleration mm/s^2  THIS IS THE DEFAULT ACCELERATION for all moves. M204 SXXXX
-extern float retract_acceleration; //  mm/s^2   filament pull-pack and push-forward  while standing still in the other axis M204 TXXXX
-extern float travel_acceleration;  // Travel acceleration mm/s^2  THIS IS THE DEFAULT ACCELERATION for all NON printing moves. M204 MXXXX
-extern float max_xy_jerk; //speed than can be stopped at once, if i understand correctly.
+extern float acceleration;         // Normal acceleration mm/s^2  DEFAULT ACCELERATION for all printing moves. M204 SXXXX
+extern float retract_acceleration; // Retract acceleration mm/s^2 filament pull-back and push-forward while standing still in the other axes M204 TXXXX
+extern float travel_acceleration;  // Travel acceleration mm/s^2  DEFAULT ACCELERATION for all NON printing moves. M204 MXXXX
+extern float max_xy_jerk;          // The largest speed change requiring no acceleration
 extern float max_z_jerk;
 extern float max_e_jerk;
 extern float mintravelfeedrate;
     return NULL;
 }
 
-#ifdef PREVENT_DANGEROUS_EXTRUDE
-  void set_extrude_min_temp(float temp);
-#endif
-
 void reset_acceleration_rates();
 
-#endif //PLANNER_H
+#endif // PLANNER_H

Marlin/stepper.cpp

 
 // Variables used by The Stepper Driver Interrupt
 static unsigned char out_bits;        // The next stepping-bits to be output
-static unsigned int cleaning_buffer_counter;  
+static unsigned int cleaning_buffer_counter;
 
 #ifdef Z_DUAL_ENDSTOPS
   static bool performing_homing = false, 
               locked_z2_motor = false;
 #endif
 
-// Counter variables for the bresenham line tracer
+// Counter variables for the Bresenham line tracer
 static long counter_x, counter_y, counter_z, counter_e;
 volatile static unsigned long step_events_completed; // The number of step events executed in the current block
 
 
 static long acceleration_time, deceleration_time;
 //static unsigned long accelerate_until, decelerate_after, acceleration_rate, initial_rate, final_rate, nominal_rate;
-static unsigned short acc_step_rate; // needed for deccelaration start point
+static unsigned short acc_step_rate; // needed for deceleration start point
 static char step_loops;
 static unsigned short OCR1A_nominal;
 static unsigned short step_loops_nominal;
 #if HAS_Y_MAX
   static bool old_y_max_endstop = false;
 #endif
-#if HAS_Z_MIN
-  static bool old_z_min_endstop = false;
-#endif
-#if HAS_Z_MAX
-  static bool old_z_max_endstop = false;
-#endif
+
+static bool old_z_min_endstop = false;
+static bool old_z_max_endstop = false;
+
 #ifdef Z_DUAL_ENDSTOPS
-  // #if HAS_Z2_MIN
-    static bool old_z2_min_endstop = false;
-  // #endif
-  // #if HAS_Z2_MAX
-    static bool old_z2_max_endstop = false;
-  // #endif
+  static bool old_z2_min_endstop = false;
+  static bool old_z2_max_endstop = false;
 #endif
 
 #ifdef Z_PROBE_ENDSTOP // No need to check for valid pin, SanityCheck.h already does this.
 // intRes = longIn1 * longIn2 >> 24
 // uses:
 // r26 to store 0
-// r27 to store the byte 1 of the 48bit result
-#define MultiU24X24toH16(intRes, longIn1, longIn2) \
+// r27 to store bits 16-23 of the 48bit result. The top bit is used to round the two byte result.
+// note that the lower two bytes and the upper byte of the 48bit result are not calculated.
+// this can cause the result to be out by one as the lower bytes may cause carries into the upper ones.
+// B0 A0 are bits 24-39 and are the returned value
+// C1 B1 A1 is longIn1
+// D2 C2 B2 A2 is longIn2
+//
+#define MultiU24X32toH16(intRes, longIn1, longIn2) \
   asm volatile ( \
     "clr r26 \n\t" \
     "mul %A1, %B2 \n\t" \
     "lsr r27 \n\t" \
     "adc %A0, r26 \n\t" \
     "adc %B0, r26 \n\t" \
+    "mul %D2, %A1 \n\t" \
+    "add %A0, r0 \n\t" \
+    "adc %B0, r1 \n\t" \
+    "mul %D2, %B1 \n\t" \
+    "add %B0, r0 \n\t" \
     "clr r1 \n\t" \
     : \
     "=&r" (intRes) \
     }
     #ifdef Z_PROBE_ENDSTOP
     if (endstop_z_probe_hit) {
-    	SERIAL_ECHOPAIR(" Z_PROBE:", (float)endstops_trigsteps[Z_AXIS] / axis_steps_per_unit[Z_AXIS]);
-    	LCD_MESSAGEPGM(MSG_ENDSTOPS_HIT "ZP");
+      SERIAL_ECHOPAIR(" Z_PROBE:", (float)endstops_trigsteps[Z_AXIS] / axis_steps_per_unit[Z_AXIS]);
+      LCD_MESSAGEPGM(MSG_ENDSTOPS_HIT "ZP");
     }
     #endif
     SERIAL_EOL;
 //  The trapezoid is the shape the speed curve over time. It starts at block->initial_rate, accelerates
 //  first block->accelerate_until step_events_completed, then keeps going at constant speed until
 //  step_events_completed reaches block->decelerate_after after which it decelerates until the trapezoid generator is reset.
-//  The slope of acceleration is calculated with the leib ramp alghorithm.
+//  The slope of acceleration is calculated using v = u + at where t is the accumulated timer values of the steps so far.
 
 void st_wake_up() {
   //  TCNT1 = 0;
     current_block = NULL;
     plan_discard_current_block();
     #ifdef SD_FINISHED_RELEASECOMMAND
-      if ((cleaning_buffer_counter == 1) && (SD_FINISHED_STEPPERRELEASE)) enquecommands_P(PSTR(SD_FINISHED_RELEASECOMMAND));
+      if ((cleaning_buffer_counter == 1) && (SD_FINISHED_STEPPERRELEASE)) enqueuecommands_P(PSTR(SD_FINISHED_RELEASECOMMAND));
     #endif
     cleaning_buffer_counter--;
     OCR1A = 200;
     return;
   }
-  
+
   // If there is no current block, attempt to pop one from the buffer
   if (!current_block) {
     // Anything in the buffer?
       count_direction[Y_AXIS] = 1;
     }
 
+    #define _ENDSTOP(axis, minmax) axis ##_## minmax ##_endstop
+    #define _ENDSTOP_PIN(AXIS, MINMAX) AXIS ##_## MINMAX ##_PIN
+    #define _ENDSTOP_INVERTING(AXIS, MINMAX) AXIS ##_## MINMAX ##_ENDSTOP_INVERTING
+    #define _OLD_ENDSTOP(axis, minmax) old_## axis ##_## minmax ##_endstop
+    #define _AXIS(AXIS) AXIS ##_AXIS
+    #define _ENDSTOP_HIT(axis) endstop_## axis ##_hit
+
     #define UPDATE_ENDSTOP(axis,AXIS,minmax,MINMAX) \
-      bool axis ##_## minmax ##_endstop = (READ(AXIS ##_## MINMAX ##_PIN) != AXIS ##_## MINMAX ##_ENDSTOP_INVERTING); \
-      if (axis ##_## minmax ##_endstop && old_## axis ##_## minmax ##_endstop && (current_block->steps[AXIS ##_AXIS] > 0)) { \
-        endstops_trigsteps[AXIS ##_AXIS] = count_position[AXIS ##_AXIS]; \
-        endstop_## axis ##_hit = true; \
+      bool _ENDSTOP(axis, minmax) = (READ(_ENDSTOP_PIN(AXIS, MINMAX)) != _ENDSTOP_INVERTING(AXIS, MINMAX)); \
+      if (_ENDSTOP(axis, minmax) && _OLD_ENDSTOP(axis, minmax) && (current_block->steps[_AXIS(AXIS)] > 0)) { \
+        endstops_trigsteps[_AXIS(AXIS)] = count_position[_AXIS(AXIS)]; \
+        _ENDSTOP_HIT(axis) = true; \
         step_events_completed = current_block->step_event_count; \
       } \
-      old_## axis ##_## minmax ##_endstop = axis ##_## minmax ##_endstop;
+      _OLD_ENDSTOP(axis, minmax) = _ENDSTOP(axis, minmax);
+
 
     // Check X and Y endstops
     if (check_endstops) {
         if ((current_block->steps[A_AXIS] != current_block->steps[B_AXIS]) || (TEST(out_bits, A_AXIS) == TEST(out_bits, B_AXIS))) {
           if (TEST(out_bits, X_HEAD))
       #else
-          if (TEST(out_bits, X_AXIS))   // stepping along -X axis (regular cartesians bot)
+          if (TEST(out_bits, X_AXIS))   // stepping along -X axis (regular Cartesian bot)
       #endif
           { // -direction
             #ifdef DUAL_X_CARRIAGE
               // with 2 x-carriages, endstops are only checked in the homing direction for the active extruder
               if ((current_block->active_extruder == 0 && X_HOME_DIR == -1) || (current_block->active_extruder != 0 && X2_HOME_DIR == -1))
-            #endif          
+            #endif
               {
                 #if HAS_X_MIN
                   UPDATE_ENDSTOP(x, X, min, MIN);
           z_probe_endstop=(READ(Z_PROBE_PIN) != Z_PROBE_ENDSTOP_INVERTING);
           if(z_probe_endstop && old_z_probe_endstop)
           {
-        	  endstops_trigsteps[Z_AXIS] = count_position[Z_AXIS];
-        	  endstop_z_probe_hit=true;
+            endstops_trigsteps[Z_AXIS] = count_position[Z_AXIS];
+            endstop_z_probe_hit=true;
 
-//        	  if (z_probe_endstop && old_z_probe_endstop) SERIAL_ECHOLN("z_probe_endstop = true");
+//            if (z_probe_endstop && old_z_probe_endstop) SERIAL_ECHOLN("z_probe_endstop = true");
           }
           old_z_probe_endstop = z_probe_endstop;
         #endif
-        
+
       } // check_endstops
 
     }
           #endif // !Z_DUAL_ENDSTOPS
 
         #endif // Z_MAX_PIN
-        
+
         #ifdef Z_PROBE_ENDSTOP
           UPDATE_ENDSTOP(z, Z, probe, PROBE);
           z_probe_endstop=(READ(Z_PROBE_PIN) != Z_PROBE_ENDSTOP_INVERTING);
           if(z_probe_endstop && old_z_probe_endstop)
           {
-        	  endstops_trigsteps[Z_AXIS] = count_position[Z_AXIS];
-        	  endstop_z_probe_hit=true;
-//        	  if (z_probe_endstop && old_z_probe_endstop) SERIAL_ECHOLN("z_probe_endstop = true");
+            endstops_trigsteps[Z_AXIS] = count_position[Z_AXIS];
+            endstop_z_probe_hit=true;
+//            if (z_probe_endstop && old_z_probe_endstop) SERIAL_ECHOLN("z_probe_endstop = true");
           }
           old_z_probe_endstop = z_probe_endstop;
         #endif
         }
       #endif //ADVANCE
 
+      #define _COUNTER(axis) counter_## axis
+      #define _WRITE_STEP(AXIS, HIGHLOW) AXIS ##_STEP_WRITE(HIGHLOW)
+      #define _APPLY_STEP(AXIS) AXIS ##_APPLY_STEP
+      #define _INVERT_STEP_PIN(AXIS) INVERT_## AXIS ##_STEP_PIN
+
       #ifdef CONFIG_STEPPERS_TOSHIBA
         /**
          * The Toshiba stepper controller require much longer pulses.
          * lag to allow it work with without needing NOPs
          */
         #define STEP_ADD(axis, AXIS) \
-         counter_## axis += current_block->steps[AXIS ##_AXIS]; \
-         if (counter_## axis > 0) { AXIS ##_STEP_WRITE(HIGH); }
+         _COUNTER(axis) += current_block->steps[_AXIS(AXIS)]; \
+         if (_COUNTER(axis) > 0) { _WRITE_STEP(AXIS, HIGH); }
         STEP_ADD(x,X);
         STEP_ADD(y,Y);
         STEP_ADD(z,Z);
         #endif
 
         #define STEP_IF_COUNTER(axis, AXIS) \
-          if (counter_## axis > 0) { \
-            counter_## axis -= current_block->step_event_count; \
-            count_position[AXIS ##_AXIS] += count_direction[AXIS ##_AXIS]; \
-            AXIS ##_STEP_WRITE(LOW); \
+          if (_COUNTER(axis) > 0) { \
+            _COUNTER(axis) -= current_block->step_event_count; \
+            count_position[_AXIS(AXIS)] += count_direction[_AXIS(AXIS)]; \
+            _WRITE_STEP(AXIS, LOW); \
           }
 
         STEP_IF_COUNTER(x, X);
       #else // !CONFIG_STEPPERS_TOSHIBA
 
         #define APPLY_MOVEMENT(axis, AXIS) \
-          counter_## axis += current_block->steps[AXIS ##_AXIS]; \
-          if (counter_## axis > 0) { \
-            AXIS ##_APPLY_STEP(!INVERT_## AXIS ##_STEP_PIN,0); \
-            counter_## axis -= current_block->step_event_count; \
-            count_position[AXIS ##_AXIS] += count_direction[AXIS ##_AXIS]; \
-            AXIS ##_APPLY_STEP(INVERT_## AXIS ##_STEP_PIN,0); \
+          _COUNTER(axis) += current_block->steps[_AXIS(AXIS)]; \
+          if (_COUNTER(axis) > 0) { \
+            _APPLY_STEP(AXIS)(!_INVERT_STEP_PIN(AXIS),0); \
+            _COUNTER(axis) -= current_block->step_event_count; \
+            count_position[_AXIS(AXIS)] += count_direction[_AXIS(AXIS)]; \
+            _APPLY_STEP(AXIS)(_INVERT_STEP_PIN(AXIS),0); \
           }
 
         APPLY_MOVEMENT(x, X);
     // Calculate new timer value
     unsigned short timer;
     unsigned short step_rate;
-    if (step_events_completed <= (unsigned long int)current_block->accelerate_until) {
+    if (step_events_completed <= (unsigned long)current_block->accelerate_until) {
 
-      MultiU24X24toH16(acc_step_rate, acceleration_time, current_block->acceleration_rate);
+      MultiU24X32toH16(acc_step_rate, acceleration_time, current_block->acceleration_rate);
       acc_step_rate += current_block->initial_rate;
 
       // upper limit
 
       #endif
     }
-    else if (step_events_completed > (unsigned long int)current_block->decelerate_after) {
-      MultiU24X24toH16(step_rate, deceleration_time, current_block->acceleration_rate);
+    else if (step_events_completed > (unsigned long)current_block->decelerate_after) {
+      MultiU24X32toH16(step_rate, deceleration_time, current_block->acceleration_rate);
 
       if (step_rate > acc_step_rate) { // Check step_rate stays positive
         step_rate = current_block->final_rate;
   #ifdef HAVE_L6470DRIVER
     L6470_init();
   #endif
-  
+
   // Initialize Dir Pins
   #if HAS_X_DIR
     X_DIR_INIT;
   #if HAS_Y_ENABLE
     Y_ENABLE_INIT;
     if (!Y_ENABLE_ON) Y_ENABLE_WRITE(HIGH);
-	
-	#if defined(Y_DUAL_STEPPER_DRIVERS) && HAS_Y2_ENABLE
-	  Y2_ENABLE_INIT;
-	  if (!Y_ENABLE_ON) Y2_ENABLE_WRITE(HIGH);
-	#endif
+
+  #if defined(Y_DUAL_STEPPER_DRIVERS) && HAS_Y2_ENABLE
+    Y2_ENABLE_INIT;
+    if (!Y_ENABLE_ON) Y2_ENABLE_WRITE(HIGH);
+  #endif
   #endif
   #if HAS_Z_ENABLE
     Z_ENABLE_INIT;
     #ifdef ENDSTOPPULLUP_ZMAX
       WRITE(Z2_MAX_PIN,HIGH);
     #endif
-  #endif  
-  
+  #endif
+
 #if (defined(Z_PROBE_PIN) && Z_PROBE_PIN >= 0) && defined(Z_PROBE_ENDSTOP) // Check for Z_PROBE_ENDSTOP so we don't pull a pin high unless it's to be used.
   SET_INPUT(Z_PROBE_PIN);
   #ifdef ENDSTOPPULLUP_ZPROBE
   #endif
 #endif
 
+  #define _STEP_INIT(AXIS) AXIS ##_STEP_INIT
+  #define _DISABLE(axis) disable_## axis()
+
   #define AXIS_INIT(axis, AXIS, PIN) \
-    AXIS ##_STEP_INIT; \
-    AXIS ##_STEP_WRITE(INVERT_## PIN ##_STEP_PIN); \
-    disable_## axis()
+    _STEP_INIT(AXIS); \
+    _WRITE_STEP(AXIS, _INVERT_STEP_PIN(PIN)); \
+    _DISABLE(axis)
 
   #define E_AXIS_INIT(NUM) AXIS_INIT(e## NUM, E## NUM, E)
 
       TCCR0A &= ~BIT(WGM01);
       TCCR0A &= ~BIT(WGM00);
     #endif
-    e_steps[0] = 0;
-    e_steps[1] = 0;
-    e_steps[2] = 0;
-    e_steps[3] = 0;
+    e_steps[0] = e_steps[1] = e_steps[2] = e_steps[3] = 0;
     TIMSK0 |= BIT(OCIE0A);
   #endif //ADVANCE
 
   // No other ISR should ever interrupt this!
   void babystep(const uint8_t axis, const bool direction) {
 
+    #define _ENABLE(axis) enable_## axis()
+    #define _READ_DIR(AXIS) AXIS ##_DIR_READ
+    #define _INVERT_DIR(AXIS) INVERT_## AXIS ##_DIR
+    #define _APPLY_DIR(AXIS, INVERT) AXIS ##_APPLY_DIR(INVERT, true)
+
     #define BABYSTEP_AXIS(axis, AXIS, INVERT) { \
-        enable_## axis(); \
-        uint8_t old_pin = AXIS ##_DIR_READ; \
-        AXIS ##_APPLY_DIR(INVERT_## AXIS ##_DIR^direction^INVERT, true); \
-        AXIS ##_APPLY_STEP(!INVERT_## AXIS ##_STEP_PIN, true); \
-        _delay_us(1U); \
-        AXIS ##_APPLY_STEP(INVERT_## AXIS ##_STEP_PIN, true); \
-        AXIS ##_APPLY_DIR(old_pin, true); \
+        _ENABLE(axis); \
+        uint8_t old_pin = _READ_DIR(AXIS); \
+        _APPLY_DIR(AXIS, _INVERT_DIR(AXIS)^direction^INVERT); \
+        _APPLY_STEP(AXIS)(!_INVERT_STEP_PIN(AXIS), true); \
+        delayMicroseconds(2); \
+        _APPLY_STEP(AXIS)(_INVERT_STEP_PIN(AXIS), true); \
+        _APPLY_DIR(AXIS, old_pin); \
       }
 
     switch(axis) {
       case Y_AXIS:
         BABYSTEP_AXIS(y, Y, false);
         break;
-     
+ 
       case Z_AXIS: {
 
         #ifndef DELTA
           X_STEP_WRITE(!INVERT_X_STEP_PIN);
           Y_STEP_WRITE(!INVERT_Y_STEP_PIN);
           Z_STEP_WRITE(!INVERT_Z_STEP_PIN);
-          _delay_us(1U);
+          delayMicroseconds(2);
           X_STEP_WRITE(INVERT_X_STEP_PIN); 
           Y_STEP_WRITE(INVERT_Y_STEP_PIN); 
           Z_STEP_WRITE(INVERT_Z_STEP_PIN);
         #endif
 
       } break;
-     
+ 
       default: break;
     }
   }
 
   #if HAS_MICROSTEPS
     pinMode(X_MS1_PIN,OUTPUT);
-    pinMode(X_MS2_PIN,OUTPUT);  
+    pinMode(X_MS2_PIN,OUTPUT);
     pinMode(Y_MS1_PIN,OUTPUT);
     pinMode(Y_MS2_PIN,OUTPUT);
     pinMode(Z_MS1_PIN,OUTPUT);

Marlin/temperature.cpp

 #define HAS_BED_THERMAL_PROTECTION (defined(THERMAL_RUNAWAY_PROTECTION_BED_PERIOD) && THERMAL_RUNAWAY_PROTECTION_BED_PERIOD > 0 && TEMP_SENSOR_BED != 0)
 #if HAS_HEATER_THERMAL_PROTECTION || HAS_BED_THERMAL_PROTECTION
   enum TRState { TRReset, TRInactive, TRFirstHeating, TRStable, TRRunaway };
-  void thermal_runaway_protection(TRState *state, unsigned long *timer, float temperature, float target_temperature, int heater_id, int period_seconds, int hysteresis_degc);
+  void thermal_runaway_protection(TRState *state, millis_t *timer, float temperature, float target_temperature, int heater_id, int period_seconds, int hysteresis_degc);
   #if HAS_HEATER_THERMAL_PROTECTION
     static TRState thermal_runaway_state_machine[4] = { TRReset, TRReset, TRReset, TRReset };
-    static unsigned long thermal_runaway_timer[4]; // = {0,0,0,0};
+    static millis_t thermal_runaway_timer[4]; // = {0,0,0,0};
   #endif
   #if HAS_BED_THERMAL_PROTECTION
     static TRState thermal_runaway_bed_state_machine = TRReset;
-    static unsigned long thermal_runaway_bed_timer;
+    static millis_t thermal_runaway_bed_timer;
   #endif
 #endif
 
 //===========================================================================
-//=============================private variables============================
+//============================ private variables ============================
 //===========================================================================
+
 static volatile bool temp_meas_ready = false;
 
 #ifdef PIDTEMP
   static float temp_iState_min_bed;
   static float temp_iState_max_bed;
 #else //PIDTEMPBED
-  static unsigned long  previous_millis_bed_heater;
+  static millis_t  next_bed_check_ms;
 #endif //PIDTEMPBED
   static unsigned char soft_pwm[EXTRUDERS];
 
   static unsigned char soft_pwm_fan;
 #endif
 #if HAS_AUTO_FAN
-  static unsigned long extruder_autofan_last_check;
+  static millis_t next_auto_fan_check_ms;
 #endif  
 
 #ifdef PIDTEMP
 
 #ifdef WATCH_TEMP_PERIOD
   int watch_start_temp[EXTRUDERS] = { 0 };
-  unsigned long watchmillis[EXTRUDERS] = { 0 };
+  millis_t watchmillis[EXTRUDERS] = { 0 };
 #endif //WATCH_TEMP_PERIOD
 
 #ifndef SOFT_PWM_SCALE
 #endif
 
 //===========================================================================
-//=============================   functions      ============================
+//================================ Functions ================================
 //===========================================================================
 
 void PID_autotune(float temp, int extruder, int ncycles)
   int cycles = 0;
   bool heating = true;
 
-  unsigned long temp_millis = millis(), t1 = temp_millis, t2 = temp_millis;
+  millis_t temp_ms = millis(), t1 = temp_ms, t2 = temp_ms;
   long t_high = 0, t_low = 0;
 
   long bias, d;
   float max = 0, min = 10000;
 
   #if HAS_AUTO_FAN
-        unsigned long extruder_autofan_last_check = temp_millis;
+    millis_t next_auto_fan_check_ms = temp_ms + 2500;
   #endif
 
   if (extruder >= EXTRUDERS
   
   SERIAL_ECHOLN(MSG_PID_AUTOTUNE_START);
 
-  disable_heater(); // switch off all heaters.
+  disable_all_heaters(); // switch off all heaters.
 
   if (extruder < 0)
     soft_pwm_bed = bias = d = MAX_BED_POWER / 2;
   // PID Tuning loop
   for (;;) {
 
-    unsigned long ms = millis();
+    millis_t ms = millis();
 
     if (temp_meas_ready) { // temp sample ready
       updateTemperaturesFromRawValues();
       min = min(min, input);
 
       #if HAS_AUTO_FAN
-        if (ms > extruder_autofan_last_check + 2500) {
+        if (ms > next_auto_fan_check_ms) {
           checkExtruderAutoFans();
-          extruder_autofan_last_check = ms;
+          next_auto_fan_check_ms = ms + 2500;
         }
       #endif
 
       return;
     }
     // Every 2 seconds...
-    if (ms > temp_millis + 2000) {
+    if (ms > temp_ms + 2000) {
       int p;
       if (extruder < 0) {
         p = soft_pwm_bed;
       SERIAL_PROTOCOLPGM(MSG_AT);
       SERIAL_PROTOCOLLN(p);
 
-      temp_millis = ms;
+      temp_ms = ms;
     } // every 2 seconds
     // Over 2 minutes?
     if (((ms - t1) + (ms - t2)) > (10L*60L*1000L*2L)) {
     }
     if (cycles > ncycles) {
       SERIAL_PROTOCOLLNPGM(MSG_PID_AUTOTUNE_FINISHED);
+      const char *estring = extruder < 0 ? "bed" : "";
+      SERIAL_PROTOCOLPGM("#define  DEFAULT_"); SERIAL_PROTOCOL(estring); SERIAL_PROTOCOLPGM("Kp "); SERIAL_PROTOCOLLN(Kp);
+      SERIAL_PROTOCOLPGM("#define  DEFAULT_"); SERIAL_PROTOCOL(estring); SERIAL_PROTOCOLPGM("Ki "); SERIAL_PROTOCOLLN(Ki);
+      SERIAL_PROTOCOLPGM("#define  DEFAULT_"); SERIAL_PROTOCOL(estring); SERIAL_PROTOCOLPGM("Kd "); SERIAL_PROTOCOLLN(Kd);
       return;
     }
     lcd_update();
 }
 
 void max_temp_error(uint8_t e) {
-  disable_heater();
+  disable_all_heaters();
   _temp_error(e, PSTR(MSG_MAXTEMP_EXTRUDER_OFF), PSTR(MSG_ERR_MAXTEMP));
 }
 void min_temp_error(uint8_t e) {
-  disable_heater();
+  disable_all_heaters();
   _temp_error(e, PSTR(MSG_MINTEMP_EXTRUDER_OFF), PSTR(MSG_ERR_MINTEMP));
 }
 void bed_max_temp_error(void) {
   }
 #endif
 
+/**
+ * Manage heating activities for extruder hot-ends and a heated bed
+ *  - Acquire updated temperature readings
+ *  - Invoke thermal runaway protection
+ *  - Manage extruder auto-fan
+ *  - Apply filament width to the extrusion rate (may move)
+ *  - Update the heated bed PID output value
+ */
 void manage_heater() {
 
   if (!temp_meas_ready) return;
   #endif //HEATER_0_USES_MAX6675
 
   #if defined(WATCH_TEMP_PERIOD) || !defined(PIDTEMPBED) || HAS_AUTO_FAN
-    unsigned long ms = millis();
+    millis_t ms = millis();
   #endif
 
   // Loop through all extruders
 
     #ifdef TEMP_SENSOR_1_AS_REDUNDANT
       if (fabs(current_temperature[0] - redundant_temperature) > MAX_REDUNDANT_TEMP_SENSOR_DIFF) {
-        disable_heater();
+        disable_all_heaters();
         _temp_error(0, PSTR(MSG_EXTRUDER_SWITCHED_OFF), PSTR(MSG_ERR_REDUNDANT_TEMP));
       }
     #endif // TEMP_SENSOR_1_AS_REDUNDANT
   } // Extruders Loop
 
   #if HAS_AUTO_FAN
-    if (ms > extruder_autofan_last_check + 2500) { // only need to check fan state very infrequently
+    if (ms > next_auto_fan_check_ms) { // only need to check fan state very infrequently
       checkExtruderAutoFans();
-      extruder_autofan_last_check = ms;
+      next_auto_fan_check_ms = ms + 2500;
     }
   #endif       
-  
+
+  // Control the extruder rate based on the width sensor
+  #ifdef FILAMENT_SENSOR
+    if (filament_sensor) {
+      meas_shift_index = delay_index1 - meas_delay_cm;
+      if (meas_shift_index < 0) meas_shift_index += MAX_MEASUREMENT_DELAY + 1;  //loop around buffer if needed
+      
+      // Get the delayed info and add 100 to reconstitute to a percent of
+      // the nominal filament diameter then square it to get an area
+      meas_shift_index = constrain(meas_shift_index, 0, MAX_MEASUREMENT_DELAY);
+      float vm = pow((measurement_delay[meas_shift_index] + 100.0) / 100.0, 2);
+      if (vm < 0.01) vm = 0.01;
+      volumetric_multiplier[FILAMENT_SENSOR_EXTRUDER_NUM] = vm;
+    }
+  #endif //FILAMENT_SENSOR
+
   #ifndef PIDTEMPBED
-    if (ms < previous_millis_bed_heater + BED_CHECK_INTERVAL) return;
-    previous_millis_bed_heater = ms;
-  #endif //PIDTEMPBED
+    if (ms < next_bed_check_ms) return;
+    next_bed_check_ms = ms + BED_CHECK_INTERVAL;
+  #endif
 
   #if TEMP_SENSOR_BED != 0
   
 
       soft_pwm_bed = current_temperature_bed > BED_MINTEMP && current_temperature_bed < BED_MAXTEMP ? (int)pid_output >> 1 : 0;
 
-    #elif !defined(BED_LIMIT_SWITCHING)
-      // Check if temperature is within the correct range
+    #elif defined(BED_LIMIT_SWITCHING)
+      // Check if temperature is within the correct band
       if (current_temperature_bed > BED_MINTEMP && current_temperature_bed < BED_MAXTEMP) {
-        soft_pwm_bed = current_temperature_bed < target_temperature_bed ? MAX_BED_POWER >> 1 : 0;
+        if (current_temperature_bed >= target_temperature_bed + BED_HYSTERESIS)
+          soft_pwm_bed = 0;
+        else if (current_temperature_bed <= target_temperature_bed - BED_HYSTERESIS)
+          soft_pwm_bed = MAX_BED_POWER >> 1;
       }
       else {
         soft_pwm_bed = 0;
         WRITE_HEATER_BED(LOW);
       }
-    #else //#ifdef BED_LIMIT_SWITCHING
-      // Check if temperature is within the correct band
+    #else // BED_LIMIT_SWITCHING
+      // Check if temperature is within the correct range
       if (current_temperature_bed > BED_MINTEMP && current_temperature_bed < BED_MAXTEMP) {
-        if (current_temperature_bed >= target_temperature_bed + BED_HYSTERESIS)
-          soft_pwm_bed = 0;
-        else if (current_temperature_bed <= target_temperature_bed - BED_HYSTERESIS)
-          soft_pwm_bed = MAX_BED_POWER >> 1;
+        soft_pwm_bed = current_temperature_bed < target_temperature_bed ? MAX_BED_POWER >> 1 : 0;
       }
       else {
         soft_pwm_bed = 0;
       }
     #endif
   #endif //TEMP_SENSOR_BED != 0
-  
-  // Control the extruder rate based on the width sensor
-  #ifdef FILAMENT_SENSOR
-    if (filament_sensor) {
-      meas_shift_index = delay_index1 - meas_delay_cm;
-      if (meas_shift_index < 0) meas_shift_index += MAX_MEASUREMENT_DELAY + 1;  //loop around buffer if needed
-      
-      // Get the delayed info and add 100 to reconstitute to a percent of
-      // the nominal filament diameter then square it to get an area
-      meas_shift_index = constrain(meas_shift_index, 0, MAX_MEASUREMENT_DELAY);
-      float vm = pow((measurement_delay[meas_shift_index] + 100.0) / 100.0, 2);
-      if (vm < 0.01) vm = 0.01;
-      volumetric_multiplier[FILAMENT_SENSOR_EXTRUDER_NUM] = vm;
-    }
-  #endif //FILAMENT_SENSOR
 }
 
 #define PGM_RD_W(x)   (short)pgm_read_word(&x)
 // Derived from RepRap FiveD extruder::getTemperature()
 // For hot end temperature measurement.
 static float analog2temp(int raw, uint8_t e) {
-#ifdef TEMP_SENSOR_1_AS_REDUNDANT
-  if (e > EXTRUDERS)
-#else
-  if (e >= EXTRUDERS)
-#endif
-  {
+  #ifdef TEMP_SENSOR_1_AS_REDUNDANT
+    if (e > EXTRUDERS)
+  #else
+    if (e >= EXTRUDERS)
+  #endif
+    {
       SERIAL_ERROR_START;
       SERIAL_ERROR((int)e);
       SERIAL_ERRORLNPGM(MSG_INVALID_EXTRUDER_NUM);
       kill();
       return 0.0;
-  } 
+    } 
+
   #ifdef HEATER_0_USES_MAX6675
-    if (e == 0)
-    {
-      return 0.25 * raw;
-    }
+    if (e == 0) return 0.25 * raw;
   #endif
 
-  if(heater_ttbl_map[e] != NULL)
-  {
+  if (heater_ttbl_map[e] != NULL) {
     float celsius = 0;
     uint8_t i;
     short (*tt)[][2] = (short (*)[][2])(heater_ttbl_map[e]);
 
-    for (i=1; i<heater_ttbllen_map[e]; i++)
-    {
-      if (PGM_RD_W((*tt)[i][0]) > raw)
-      {
+    for (i = 1; i < heater_ttbllen_map[e]; i++) {
+      if (PGM_RD_W((*tt)[i][0]) > raw) {
         celsius = PGM_RD_W((*tt)[i-1][1]) + 
           (raw - PGM_RD_W((*tt)[i-1][0])) * 
           (float)(PGM_RD_W((*tt)[i][1]) - PGM_RD_W((*tt)[i-1][1])) /
     float celsius = 0;
     byte i;
 
-    for (i=1; i<BEDTEMPTABLE_LEN; i++)
-    {
-      if (PGM_RD_W(BEDTEMPTABLE[i][0]) > raw)
-      {
+    for (i = 1; i < BEDTEMPTABLE_LEN; i++) {
+      if (PGM_RD_W(BEDTEMPTABLE[i][0]) > raw) {
         celsius  = PGM_RD_W(BEDTEMPTABLE[i-1][1]) + 
           (raw - PGM_RD_W(BEDTEMPTABLE[i-1][0])) * 
           (float)(PGM_RD_W(BEDTEMPTABLE[i][1]) - PGM_RD_W(BEDTEMPTABLE[i-1][1])) /
 #endif
 
 
-
-
-
-void tp_init()
-{
+/**
+ * Initialize the temperature manager
+ * The manager is implemented by periodic calls to manage_heater()
+ */
+void tp_init() {
   #if MB(RUMBA) && ((TEMP_SENSOR_0==-1)||(TEMP_SENSOR_1==-1)||(TEMP_SENSOR_2==-1)||(TEMP_SENSOR_BED==-1))
     //disable RUMBA JTAG in case the thermocouple extension is plugged on top of JTAG connector
     MCUCR=BIT(JTD);
 
 void setWatch() {
   #ifdef WATCH_TEMP_PERIOD
-    unsigned long ms = millis();
+    millis_t ms = millis();
     for (int e = 0; e < EXTRUDERS; e++) {
       if (degHotend(e) < degTargetHotend(e) - (WATCH_TEMP_INCREASE * 2)) {
         watch_start_temp[e] = degHotend(e);
 
 #if HAS_HEATER_THERMAL_PROTECTION || HAS_BED_THERMAL_PROTECTION
 
-  void thermal_runaway_protection(TRState *state, unsigned long *timer, float temperature, float target_temperature, int heater_id, int period_seconds, int hysteresis_degc) {
+  void thermal_runaway_protection(TRState *state, millis_t *timer, float temperature, float target_temperature, int heater_id, int period_seconds, int hysteresis_degc) {
 
     static float tr_target_temperature[EXTRUDERS+1] = { 0.0 };
 
         SERIAL_ERRORLNPGM(MSG_THERMAL_RUNAWAY_STOP);
         if (heater_id < 0) SERIAL_ERRORLNPGM("bed"); else SERIAL_ERRORLN(heater_id);
         LCD_ALERTMESSAGEPGM(MSG_THERMAL_RUNAWAY);
-        disable_heater();
+        disable_all_heaters();
         disable_all_steppers();
         for (;;) {
           manage_heater();
 
 #endif // HAS_HEATER_THERMAL_PROTECTION || HAS_BED_THERMAL_PROTECTION
 
-void disable_heater() {
+void disable_all_heaters() {
   for (int i=0; i<EXTRUDERS; i++) setTargetHotend(0, i);
   setTargetBed(0);
 
 
 #ifdef HEATER_0_USES_MAX6675
   #define MAX6675_HEAT_INTERVAL 250u
-  unsigned long max6675_previous_millis = MAX6675_HEAT_INTERVAL;
+  static millis_t next_max6675_ms = 0;
   int max6675_temp = 2000;
 
   static int read_max6675() {
 
-    unsigned long ms = millis();
-    if (ms < max6675_previous_millis + MAX6675_HEAT_INTERVAL)
+    millis_t ms = millis();
+
+    if (ms < next_max6675_ms)
       return max6675_temp;
     
-    max6675_previous_millis = ms;
+    next_max6675_ms = ms + MAX6675_HEAT_INTERVAL;
+
     max6675_temp = 0;
 
     #ifdef PRR
   temp_meas_ready = true;
 }
 
-//
-// Timer 0 is shared with millies
-//
+/**
+ * Timer 0 is shared with millies
+ *  - Manage PWM to all the heaters and fan
+ *  - Update the raw temperature values
+ *  - Check new temperature values for MIN/MAX errors
+ *  - Step the babysteps value for each axis towards 0
+ */
 ISR(TIMER0_COMPB_vect) {
-  //these variables are only accesible from the ISR, but static, so they don't lose their value
+
   static unsigned char temp_count = 0;
   static TempState temp_state = StartupDelay;
   static unsigned char pwm_count = BIT(SOFT_PWM_SCALE);
     #define START_ADC(pin) ADCSRB = 0; SET_ADMUX_ADCSRA(pin)
   #endif
 
+  // Prepare or measure a sensor, each one every 12th frame
   switch(temp_state) {
     case PrepareTemp_0:
       #if HAS_TEMP_0
   } // temp_count >= OVERSAMPLENR
 
   #ifdef BABYSTEPPING
-    for (uint8_t axis=X_AXIS; axis<=Z_AXIS; axis++) {
-      int curTodo=babystepsTodo[axis]; //get rid of volatile for performance
+    for (uint8_t axis = X_AXIS; axis <= Z_AXIS; axis++) {
+      int curTodo = babystepsTodo[axis]; //get rid of volatile for performance
      
       if (curTodo > 0) {
         babystep(axis,/*fwd*/true);
-        babystepsTodo[axis]--; //less to do next time
+        babystepsTodo[axis]--; //fewer to do next time
       }
-      else if(curTodo < 0) {
+      else if (curTodo < 0) {
         babystep(axis,/*fwd*/false);
-        babystepsTodo[axis]++; //less to do next time
+        babystepsTodo[axis]++; //fewer to do next time
       }
     }
   #endif //BABYSTEPPING

Marlin/temperature.h

 #endif
 
 int getHeaterPower(int heater);
-void disable_heater();
+void disable_all_heaters();
 void setWatch();
 void updatePID();
 

Marlin/ultralcd.h

   int lcd_strlen_P(const char *s);
   void lcd_update();
   void lcd_init();
+  bool lcd_hasstatus();
   void lcd_setstatus(const char* message, const bool persist=false);
   void lcd_setstatuspgm(const char* message, const uint8_t level=0);
   void lcd_setalertstatuspgm(const char* message);
   extern bool cancel_heatup;
   
   #ifdef FILAMENT_LCD_DISPLAY
-    extern unsigned long message_millis;
+    extern millis_t previous_lcd_status_ms;
   #endif
 
   void lcd_buzz(long duration,uint16_t freq);
+  void lcd_quick_feedback(); // Audible feedback for a button click - could also be visual
   bool lcd_clicked();
 
   void lcd_ignore_click(bool b=true);
 #else //no LCD
   FORCE_INLINE void lcd_update() {}
   FORCE_INLINE void lcd_init() {}
+  FORCE_INLINE bool lcd_hasstatus() { return false; }
   FORCE_INLINE void lcd_setstatus(const char* message, const bool persist=false) {}
   FORCE_INLINE void lcd_setstatuspgm(const char* message, const uint8_t level=0) {}
   FORCE_INLINE void lcd_buttons_update() {}
   FORCE_INLINE void lcd_buzz(long duration,uint16_t freq) {}
   FORCE_INLINE bool lcd_detected(void) { return true; }
 
-  #define LCD_MESSAGEPGM(x) 
-  #define LCD_ALERTMESSAGEPGM(x) 
+  #define LCD_MESSAGEPGM(x) do{}while(0)
+  #define LCD_ALERTMESSAGEPGM(x) do{}while(0)
 
 #endif //ULTRA_LCD
 

Marlin/ultralcd_implementation_hitachi_HD44780.h

 #include "utf_mapper.h"
 
 #ifdef LCD_PROGRESS_BAR
-  static uint16_t progressBarTick = 0;
+  static millis_t progress_bar_ms = 0;
   #if PROGRESS_MSG_EXPIRE > 0
-    static uint16_t expireStatusMillis = 0;
+    static millis_t expire_status_ms = 0;
   #endif
   #define LCD_STR_PROGRESS  "\x03\x04\x05"
 #endif
 
-/* Custom characters defined in the first 8 characters of the LCD */
-#define LCD_STR_BEDTEMP     "\x00"  // this will have 'unexpected' results when used in a string!
-#define LCD_STR_DEGREE      "\x01"
-#define LCD_STR_THERMOMETER "\x02"
-#define LCD_STR_UPLEVEL     "\x03"
-#define LCD_STR_REFRESH     "\x04"
-#define LCD_STR_FOLDER      "\x05"
-#define LCD_STR_FEEDRATE    "\x06"
-#define LCD_STR_CLOCK       "\x07"
-//#define LCD_STR_ARROW_RIGHT "\x7E"  /* from the default character set. Only available on DISPLAY_CHARSET_HD44780_JAPAN - at this place!*/
-#define LCD_STR_ARROW_RIGHT ">"  /* from the default character set */
-
 static void lcd_set_custom_characters(
   #ifdef LCD_PROGRESS_BAR
     bool progress_bar_set=true
 
     lcd.setCursor(0, 2);
     lcd.print(LCD_STR_FEEDRATE[0]);
-    lcd.print(itostr3(feedmultiply));
+    lcd.print(itostr3(feedrate_multiplier));
     lcd.print('%');
 
     #if LCD_WIDTH > 19 && defined(SDSUPPORT)
 
     lcd.setCursor(LCD_WIDTH - 6, 2);
     lcd.print(LCD_STR_CLOCK[0]);
-    if (starttime != 0) {
-      uint16_t time = millis()/60000 - starttime/60000;
+    if (print_job_start_ms != 0) {
+      uint16_t time = millis()/60000 - print_job_start_ms/60000;
       lcd.print(itostr2(time/60));
       lcd.print(':');
       lcd.print(itostr2(time%60));
   #ifdef LCD_PROGRESS_BAR
 
     if (card.isFileOpen()) {
-      if (millis() >= progressBarTick + PROGRESS_BAR_MSG_TIME || !lcd_status_message[0]) {
-        // draw the progress bar
+      // Draw the progress bar if the message has shown long enough
+      // or if there is no message set.
+      if (millis() >= progress_bar_ms + PROGRESS_BAR_MSG_TIME || !lcd_status_message[0]) {
         int tix = (int)(card.percentDone() * LCD_WIDTH * 3) / 100,
           cel = tix / 3, rem = tix % 3, i = LCD_WIDTH;
         char msg[LCD_WIDTH+1], b = ' ';
 
     // Show Filament Diameter and Volumetric Multiplier %
     // After allowing lcd_status_message to show for 5 seconds
-    if (millis() >= message_millis + 5000) {
+    if (millis() >= previous_lcd_status_ms + 5000) {
       lcd_printPGM(PSTR("Dia "));
       lcd.print(ftostr12ns(filament_width_meas));
       lcd_printPGM(PSTR(" V"));
 #define lcd_implementation_drawmenu_function(sel, row, pstr, data) lcd_implementation_drawmenu_generic(sel, row, pstr, '>', ' ')
 
 #ifdef LCD_HAS_STATUS_INDICATORS
-static void lcd_implementation_update_indicators()
-{
-  #if defined(LCD_I2C_PANELOLU2) || defined(LCD_I2C_VIKI)
-    //set the LEDS - referred to as backlights by the LiquidTWI2 library 
-    static uint8_t ledsprev = 0;
-    uint8_t leds = 0;
-    if (target_temperature_bed > 0) leds |= LED_A;
-    if (target_temperature[0] > 0) leds |= LED_B;
-    if (fanSpeed) leds |= LED_C;
-    #if EXTRUDERS > 1  
-      if (target_temperature[1] > 0) leds |= LED_C;
+
+  static void lcd_implementation_update_indicators() {
+    #if defined(LCD_I2C_PANELOLU2) || defined(LCD_I2C_VIKI)
+      //set the LEDS - referred to as backlights by the LiquidTWI2 library 
+      static uint8_t ledsprev = 0;
+      uint8_t leds = 0;
+      if (target_temperature_bed > 0) leds |= LED_A;
+      if (target_temperature[0] > 0) leds |= LED_B;
+      if (fanSpeed) leds |= LED_C;
+      #if EXTRUDERS > 1  
+        if (target_temperature[1] > 0) leds |= LED_C;
+      #endif
+      if (leds != ledsprev) {
+        lcd.setBacklight(leds);
+        ledsprev = leds;
+      }
     #endif
-    if (leds != ledsprev) {
-      lcd.setBacklight(leds);
-      ledsprev = leds;
-    }
-  #endif
-}
-#endif
+  }
+
+#endif // LCD_HAS_STATUS_INDICATORS
 
 #ifdef LCD_HAS_SLOW_BUTTONS
-extern uint32_t blocking_enc;
 
-static uint8_t lcd_implementation_read_slow_buttons()
-{
-  #ifdef LCD_I2C_TYPE_MCP23017
-  uint8_t slow_buttons;
-    // Reading these buttons this is likely to be too slow to call inside interrupt context
-    // so they are called during normal lcd_update
-    slow_buttons = lcd.readButtons() << B_I2C_BTN_OFFSET; 
-    #if defined(LCD_I2C_VIKI)
-    if(slow_buttons & (B_MI|B_RI)) { //LCD clicked
-       if(blocking_enc > millis()) {
-         slow_buttons &= ~(B_MI|B_RI); // Disable LCD clicked buttons if screen is updated
-       }
-    }
+  extern millis_t next_button_update_ms;
+
+  static uint8_t lcd_implementation_read_slow_buttons() {
+    #ifdef LCD_I2C_TYPE_MCP23017
+      uint8_t slow_buttons;
+      // Reading these buttons this is likely to be too slow to call inside interrupt context
+      // so they are called during normal lcd_update
+      slow_buttons = lcd.readButtons() << B_I2C_BTN_OFFSET; 
+      #ifdef LCD_I2C_VIKI
+        if ((slow_buttons & (B_MI|B_RI)) && millis() < next_button_update_ms) // LCD clicked
+          slow_buttons &= ~(B_MI|B_RI); // Disable LCD clicked buttons if screen is updated
+      #endif
+      return slow_buttons;
     #endif
-    return slow_buttons; 
-  #endif
-}
-#endif
+  }
+
+#endif // LCD_HAS_SLOW_BUTTONS
 
 #endif //__ULTRALCD_IMPLEMENTATION_HITACHI_HD44780_H

Marlin/ultralcd_st7920_u8glib_rrd.h

 //#define PAGE_HEIGHT 16  //256 byte framebuffer
 #define PAGE_HEIGHT 32  //512 byte framebuffer
 
-#define WIDTH 128
-#define HEIGHT 64
+#define LCD_PIXEL_WIDTH 128
+#define LCD_PIXEL_HEIGHT 64
 
 #include <U8glib.h>
 
         ST7920_WRITE_BYTE(0x01);       //clear CGRAM ram
         u8g_Delay(15);                 //delay for CGRAM clear
         ST7920_WRITE_BYTE(0x3E);       //extended mode + GDRAM active
-        for(y=0;y<HEIGHT/2;y++)        //clear GDRAM
+        for(y=0;y<LCD_PIXEL_HEIGHT/2;y++)        //clear GDRAM
         {
           ST7920_WRITE_BYTE(0x80|y);   //set y
           ST7920_WRITE_BYTE(0x80);     //set x = 0
           ST7920_SET_DAT();
-          for(i=0;i<2*WIDTH/8;i++)     //2x width clears both segments
+          for(i=0;i<2*LCD_PIXEL_WIDTH/8;i++)     //2x width clears both segments
             ST7920_WRITE_BYTE(0);
           ST7920_SET_CMD();
         }
           }
 
           ST7920_SET_DAT();
-          ST7920_WRITE_BYTES(ptr,WIDTH/8); //ptr is incremented inside of macro
+          ST7920_WRITE_BYTES(ptr,LCD_PIXEL_WIDTH/8); //ptr is incremented inside of macro
           y++;
         }
         ST7920_NCS();
 #endif
 }
 
-uint8_t   u8g_dev_st7920_128x64_rrd_buf[WIDTH*(PAGE_HEIGHT/8)] U8G_NOCOMMON;
-u8g_pb_t  u8g_dev_st7920_128x64_rrd_pb = {{PAGE_HEIGHT,HEIGHT,0,0,0},WIDTH,u8g_dev_st7920_128x64_rrd_buf};
+uint8_t   u8g_dev_st7920_128x64_rrd_buf[LCD_PIXEL_WIDTH*(PAGE_HEIGHT/8)] U8G_NOCOMMON;
+u8g_pb_t  u8g_dev_st7920_128x64_rrd_pb = {{PAGE_HEIGHT,LCD_PIXEL_HEIGHT,0,0,0},LCD_PIXEL_WIDTH,u8g_dev_st7920_128x64_rrd_buf};
 u8g_dev_t u8g_dev_st7920_128x64_rrd_sw_spi = {u8g_dev_rrd_st7920_128x64_fn,&u8g_dev_st7920_128x64_rrd_pb,&u8g_com_null_fn};
 
 class U8GLIB_ST7920_128X64_RRD : public U8GLIB

Marlin/watchdog.cpp

 #include "ultralcd.h"
 
 //===========================================================================
-//=============================private variables  ============================
+//============================ private variables ============================
 //===========================================================================
 
 //===========================================================================
-//=============================functinos         ============================
+//================================ functions ================================
 //===========================================================================
 
 
 }
 
 //===========================================================================
-//=============================ISR               ============================
+//=================================== ISR ===================================
 //===========================================================================
 
 //Watchdog timer interrupt, called if main program blocks >1sec and manual reset is enabled.

README.md

 ## Current Status: Bug Fixing
 
 The Marlin development is currently revived. There's a long list of reported issues and pull requests, which we are working on currently.
-We are actively looking for testers. So please try the current development version and report new issues and feedback.
 
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 ## Contact
 
-__Google Hangout:__ <a href="https://plus.google.com/hangouts/_/g2wp5duzb2y6ahikg6tmwao3kua" target="_blank">Hangout</a>
+__Google Hangout:__ <a href="https://plus.google.com/hangouts/_/gxn3wrea5gdhoo223yimsiforia" target="_blank">Hangout</a>
 
 ## Credits
 
  - Scott Lahteine [@thinkyhead]
  - 
 
-Sprinters lead developers are Kliment and caru.
-Grbl's lead developer is Simen Svale Skogsrud.
-Sonney Jeon (Chamnit) improved some parts of grbl.
-A fork by bkubicek for the Ultimaker was merged.
+## Donation
+
+If you find our work usefull please consider donating. Donations will be used to pay for our website http://www.marlinfirmware.org/ and to pay some food or rent money for the very active Collaborators
 
 More features have been added by:
   - Lampmaker,
 
 ## License
 
-Marlin is published under the [GPL license](/Documentation/COPYING.md) because I believe in open development.
-Please do not use this code in products (3D printers, CNC etc) that are closed source or are crippled by a patent.
+Marlin is published under the [GPL license](/Documentation/COPYING.md) because We believe in open development.
+Do not use this code in products (3D printers, CNC etc) that are closed source or are crippled by a patent.
 
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