Patch up more outdated config lines

Marlin/Configuration.h

 #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
+//#define PS_DEFAULT_OFF
 
 // @section temperature
 
   #define PID_INTEGRAL_DRIVE_MAX PID_MAX  //limit for the integral term
   #define K1 0.95 //smoothing factor within the PID
 
-// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
-// Ultimaker
-    #define  DEFAULT_Kp 22.2
-    #define  DEFAULT_Ki 1.08
-    #define  DEFAULT_Kd 114
-
-// MakerGear
-//    #define  DEFAULT_Kp 7.0
-//    #define  DEFAULT_Ki 0.1
-//    #define  DEFAULT_Kd 12
-
-// Mendel Parts V9 on 12V
-//    #define  DEFAULT_Kp 63.0
-//    #define  DEFAULT_Ki 2.25
-//    #define  DEFAULT_Kd 440
+  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
+  // Ultimaker
+  #define  DEFAULT_Kp 22.2
+  #define  DEFAULT_Ki 1.08
+  #define  DEFAULT_Kd 114
+
+  // MakerGear
+  //#define  DEFAULT_Kp 7.0
+  //#define  DEFAULT_Ki 0.1
+  //#define  DEFAULT_Kd 12
+
+  // Mendel Parts V9 on 12V
+  //#define  DEFAULT_Kp 63.0
+  //#define  DEFAULT_Ki 2.25
+  //#define  DEFAULT_Kd 440
+
 #endif // PIDTEMP
 
 //===========================================================================
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-    #define  DEFAULT_bedKp 10.00
-    #define  DEFAULT_bedKi .023
-    #define  DEFAULT_bedKd 305.4
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  #define  DEFAULT_bedKp 10.00
+  #define  DEFAULT_bedKi .023
+  #define  DEFAULT_bedKd 305.4
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from pidautotune
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
 
-// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+  // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
 #endif // PIDTEMPBED
 
 // @section extruder
 // #define COREXY
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 

Marlin/configurator/config/Configuration.h

 #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
+//#define PS_DEFAULT_OFF
 
 // @section temperature
 
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
+
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
+
 //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
 //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-    #define  DEFAULT_bedKp 10.00
-    #define  DEFAULT_bedKi .023
-    #define  DEFAULT_bedKd 305.4
+  #define  DEFAULT_bedKp 10.00
+  #define  DEFAULT_bedKi .023
+  #define  DEFAULT_bedKd 305.4
 
 //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
 //from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
 
 // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
 #endif // PIDTEMPBED
 // #define COREXY
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 
 
 //   #define Z_PROBE_END_SCRIPT "G1 Z10 F12000\nG1 X15 Y330\nG1 Z0.5\nG1 Z10" //These commands will be executed in the end of G29 routine.
                                                                             //Useful to retract a deployable probe.
-                                                                           
+
   //#define Z_PROBE_SLED // turn on if you have a z-probe mounted on a sled like those designed by Charles Bell
   //#define SLED_DOCKING_OFFSET 5 // the extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
 
 #define DEFAULT_MAX_ACCELERATION      {3000,3000,100,10000}    // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
 
 #define DEFAULT_ACCELERATION          3000    // X, Y, Z and E acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION  3000   // E acceleration in mm/s^2 for retracts
+#define DEFAULT_RETRACT_ACCELERATION  3000    // E acceleration in mm/s^2 for retracts
 #define DEFAULT_TRAVEL_ACCELERATION   3000    // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
 
 // The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
 // @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, cn, test
 // See also language.h
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 //
 // ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
 //#define ELB_FULL_GRAPHIC_CONTROLLER
+//#define SDCARDDETECTINVERTED
 
 // The RepRapDiscount Smart Controller (white PCB)
 // http://reprap.org/wiki/RepRapDiscount_Smart_Controller
 
 // Panucatt VIKI LCD with status LEDs, integrated click & L/R/U/P buttons, separate encoder inputs
 //#define LCD_I2C_VIKI
+  
+// SSD1306 OLED generic display support
+// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
+//#define U8GLIB_SSD1306
 
 // Shift register panels
 // ---------------------
 // 2 wire Non-latching LCD SR from:
 // https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/schematics#!shiftregister-connection
-
+// LCD configuration: http://reprap.org/wiki/SAV_3D_LCD
 //#define SAV_3DLCD
 
 // @section extras

Marlin/example_configurations/Felix/Configuration.h

 #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 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 PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-// Felix Foil Heater
-   #define DEFAULT_bedKp 103.37
-   #define DEFAULT_bedKi 2.79
-   #define DEFAULT_bedKd 956.94
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+  // Felix Foil Heater
+  #define DEFAULT_bedKp 103.37
+  #define DEFAULT_bedKi 2.79
+  #define DEFAULT_bedKd 956.94
+
+  // 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
 // #define COREXY
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 
   // #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).
 #define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
+// 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 DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
+
+// @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 true
 #define INVERT_Y_DIR true
 #define INVERT_Z_DIR true
+
+// @section extruder
+
+// For direct drive extruder v9 set to true, for geared extruder set to false.
 #define INVERT_E0_DIR false
 #define INVERT_E1_DIR false
 #define INVERT_E2_DIR false
 #define INVERT_E3_DIR false
 
+// @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.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
-  
+
 //===========================================================================
 //=========================== Manual 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.
 
 
 //   #define Z_PROBE_END_SCRIPT "G1 Z10 F12000\nG1 X15 Y330\nG1 Z0.5\nG1 Z10" //These commands will be executed in the end of G29 routine.
                                                                             //Useful to retract a deployable probe.
-                                                                           
+
   //#define Z_PROBE_SLED // turn on if you have a z-probe mounted on a sled like those designed by Charles Bell
   //#define SLED_DOCKING_OFFSET 5 // the extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
 
 #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  5000 // X, Y, Z and E max acceleration in mm/s^2 for r retracts
 #define DEFAULT_TRAVEL_ACCELERATION   3000 // 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                10   // (mm/sec)
 #define DEFAULT_ZJERK                 0.3  //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...
 
 #ifdef EEPROM_SETTINGS
   // To disable EEPROM Serial responses and decrease program space by ~1700 byte: comment this out:
-  #define EEPROM_CHITCHAT // please keep turned on if you can.
+  #define EEPROM_CHITCHAT // Please keep turned on if you can.
 #endif
 
+// @section temperature
+
 // Preheat Constants
 #define PLA_PREHEAT_HOTEND_TEMP 180
 #define PLA_PREHEAT_HPB_TEMP 70
 #define ABS_PREHEAT_FAN_SPEED 255   // 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, cn, test
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
 //#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
 
 // Panucatt VIKI LCD with status LEDs, integrated click & L/R/U/P buttons, separate encoder inputs
 //#define LCD_I2C_VIKI
+  
+// SSD1306 OLED generic display support
+// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
+//#define U8GLIB_SSD1306
 
 // Shift register panels
 // ---------------------
 // 2 wire Non-latching LCD SR from:
 // https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/schematics#!shiftregister-connection
-
+// LCD configuration: http://reprap.org/wiki/SAV_3D_LCD
 //#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.

Marlin/example_configurations/Felix/Configuration_DUAL.h

 // #define COREXY
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 

Marlin/example_configurations/Hephestos/Configuration.h

 #define SERIAL_PORT 0
 
 // This determines the communication speed of the printer
+// :[2400,9600,19200,38400,57600,115200,250000]
 #define BAUDRATE 115200
 
 // This enables the serial port associated to the Bluetooth interface
 
 // The following define selects which electronics board you have.
 // Please choose the name from boards.h that matches your setup
-#define MOTHERBOARD BOARD_RAMPS_13_EFB
+#ifndef MOTHERBOARD
+  #define MOTHERBOARD BOARD_RAMPS_13_EFB
+#endif
 
 // Optional custom name for your RepStrap or other custom machine
 // Displayed in the LCD "Ready" message
 // #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
+//#define PS_DEFAULT_OFF
+
+// @section temperature
 
 //===========================================================================
 //============================= Thermal Settings ============================
   #define PID_INTEGRAL_DRIVE_MAX PID_MAX  //limit for the integral term
   #define K1 0.95 //smoothing factor within the PID
 
-// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
-// Ultimaker
-//  #define  DEFAULT_Kp 22.2
-//  #define  DEFAULT_Ki 1.08
-//  #define  DEFAULT_Kd 114
+  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
+  // Ultimaker
+  //#define  DEFAULT_Kp 22.2
+  //#define  DEFAULT_Ki 1.08
+  //#define  DEFAULT_Kd 114
 
-// MakerGear
-//    #define  DEFAULT_Kp 7.0
-//    #define  DEFAULT_Ki 0.1
-//    #define  DEFAULT_Kd 12
+  // MakerGear
+  //#define  DEFAULT_Kp 7.0
+  //#define  DEFAULT_Ki 0.1
+  //#define  DEFAULT_Kd 12
 
-// Mendel Parts V9 on 12V
-//    #define  DEFAULT_Kp 63.0
-//    #define  DEFAULT_Ki 2.25
-//    #define  DEFAULT_Kd 440
+  // Mendel Parts V9 on 12V
+  //#define  DEFAULT_Kp 63.0
+  //#define  DEFAULT_Ki 2.25
+  //#define  DEFAULT_Kd 440
 
-// Hephestos (i3)
-    #define  DEFAULT_Kp 23.05
-    #define  DEFAULT_Ki 2.00
-    #define  DEFAULT_Kd 66.47
+  // Hephestos (i3)
+  #define  DEFAULT_Kp 23.05
+  #define  DEFAULT_Ki 2.00
+  #define  DEFAULT_Kd 66.47
 
 #endif // PIDTEMP
 
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-    #define  DEFAULT_bedKp 10.00
-    #define  DEFAULT_bedKi .023
-    #define  DEFAULT_bedKd 305.4
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  #define  DEFAULT_bedKp 10.00
+  #define  DEFAULT_bedKi .023
+  #define  DEFAULT_bedKd 305.4
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from pidautotune
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
 
-// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+  // 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
 // #define COREXY
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 
   // #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).
 //#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
+// 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 DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
+
+// @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 true
 #define INVERT_Y_DIR false
 #define INVERT_Z_DIR true
+
+// @section extruder
+
+// For direct drive extruder v9 set to true, for geared extruder set to false.
 #define INVERT_E0_DIR false
 #define INVERT_E1_DIR false
 #define INVERT_E2_DIR false
 #define INVERT_E3_DIR false
 
+// @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.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
-  
+
 //===========================================================================
 //=========================== Manual 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.
 
 
 //   #define Z_PROBE_END_SCRIPT "G1 Z10 F12000\nG1 X15 Y330\nG1 Z0.5\nG1 Z10" //These commands will be executed in the end of G29 routine.
                                                                             //Useful to retract a deployable probe.
-                                                                           
+
   //#define Z_PROBE_SLED // turn on if you have a z-probe mounted on a sled like those designed by Charles Bell
   //#define SLED_DOCKING_OFFSET 5 // the extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
 
 #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                10.0    // (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...
 
 #ifdef EEPROM_SETTINGS
   // To disable EEPROM Serial responses and decrease program space by ~1700 byte: comment this out:
-  #define EEPROM_CHITCHAT // please keep turned on if you can.
+  #define EEPROM_CHITCHAT // Please keep turned on if you can.
 #endif
 
+// @section temperature
+
 // Preheat Constants
 #define PLA_PREHEAT_HOTEND_TEMP 200
 #define PLA_PREHEAT_HPB_TEMP 0
 #define ABS_PREHEAT_FAN_SPEED 255   // 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, cn, test
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
 //#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
 
 // Panucatt VIKI LCD with status LEDs, integrated click & L/R/U/P buttons, separate encoder inputs
 //#define LCD_I2C_VIKI
+  
+// SSD1306 OLED generic display support
+// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
+//#define U8GLIB_SSD1306
 
 // Shift register panels
 // ---------------------
 // 2 wire Non-latching LCD SR from:
 // https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/schematics#!shiftregister-connection
-
+// LCD configuration: http://reprap.org/wiki/SAV_3D_LCD
 //#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.

Marlin/example_configurations/K8200/Configuration.h

 #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
+//#define PS_DEFAULT_OFF
 
 // @section temperature
 
   #define PID_INTEGRAL_DRIVE_MAX PID_MAX  //limit for the integral term
   #define K1 0.95 //smoothing factor within the PID
 
-// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
-// Ultimaker
-//    #define  DEFAULT_Kp 22.2
-//    #define  DEFAULT_Ki 1.08
-//    #define  DEFAULT_Kd 114
-
-// MakerGear
-//    #define  DEFAULT_Kp 7.0
-//    #define  DEFAULT_Ki 0.1
-//    #define  DEFAULT_Kd 12
-
-// Mendel Parts V9 on 12V
-//    #define  DEFAULT_Kp 63.0
-//    #define  DEFAULT_Ki 2.25
-//    #define  DEFAULT_Kd 440
-
-// Vellemann K8200 Extruder - calculated with PID Autotune and tested
-   #define  DEFAULT_Kp 24.29
-   #define  DEFAULT_Ki 1.58
-   #define  DEFAULT_Kd 93.51
+  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
+  // Ultimaker
+  //#define  DEFAULT_Kp 22.2
+  //#define  DEFAULT_Ki 1.08
+  //#define  DEFAULT_Kd 114
+
+  // MakerGear
+  //#define  DEFAULT_Kp 7.0
+  //#define  DEFAULT_Ki 0.1
+  //#define  DEFAULT_Kd 12
+
+  // Mendel Parts V9 on 12V
+  //#define  DEFAULT_Kp 63.0
+  //#define  DEFAULT_Ki 2.25
+  //#define  DEFAULT_Kd 440
+
+  // Vellemann K8200 Extruder - calculated with PID Autotune and tested
+  #define  DEFAULT_Kp 24.29
+  #define  DEFAULT_Ki 1.58
+  #define  DEFAULT_Kd 93.51
+
 #endif // PIDTEMP
 
 //===========================================================================
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
-
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-//    #define  DEFAULT_bedKp 10.00
-//    #define  DEFAULT_bedKi .023
-//    #define  DEFAULT_bedKd 305.4
-
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
-
-//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
-   #define  DEFAULT_bedKd 1153.89
-
-   // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  //#define  DEFAULT_bedKp 10.00
+  //#define  DEFAULT_bedKi .023
+  //#define  DEFAULT_bedKd 305.4
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from pidautotune
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
+
+  //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
+  #define  DEFAULT_bedKd 1153.89
+
+  // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
 #endif // PIDTEMPBED
 
 // @section extruder
 // #define COREXY
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 
 
 //   #define Z_PROBE_END_SCRIPT "G1 Z10 F12000\nG1 X15 Y330\nG1 Z0.5\nG1 Z10" //These commands will be executed in the end of G29 routine.
                                                                             //Useful to retract a deployable probe.
-                                                                           
+
   //#define Z_PROBE_SLED // turn on if you have a z-probe mounted on a sled like those designed by Charles Bell
   //#define SLED_DOCKING_OFFSET 5 // the extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
 
 #define DEFAULT_MAX_ACCELERATION      {9000,9000,100,10000}    // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
 
 #define DEFAULT_ACCELERATION          1000    // X, Y, Z and E acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION  1000   // E acceleration in mm/s^2 for retracts
+#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
 
 // The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
 
 #ifdef EEPROM_SETTINGS
   // To disable EEPROM Serial responses and decrease program space by ~1700 byte: comment this out:
-  #define EEPROM_CHITCHAT // please keep turned on if you can.
+  #define EEPROM_CHITCHAT // Please keep turned on if you can.
 #endif
 
-
 // @section temperature
 
 // Preheat Constants
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
 //#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
 
 // Panucatt VIKI LCD with status LEDs, integrated click & L/R/U/P buttons, separate encoder inputs
 //#define LCD_I2C_VIKI
+  
+// SSD1306 OLED generic display support
+// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
+//#define U8GLIB_SSD1306
 
 // Shift register panels
 // ---------------------
 // 2 wire Non-latching LCD SR from:
 // https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/schematics#!shiftregister-connection
-
+// LCD configuration: http://reprap.org/wiki/SAV_3D_LCD
 //#define SAV_3DLCD
 
 // @section extras

Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h

 #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
+//#define PS_DEFAULT_OFF
 
 // @section temperature
 
   #define PID_INTEGRAL_DRIVE_MAX PID_MAX  //limit for the integral term
   #define K1 0.95 //smoothing factor within the PID
 
-// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
-// Ultimaker
-    #define  DEFAULT_Kp 22.2
-    #define  DEFAULT_Ki 1.08
-    #define  DEFAULT_Kd 114
-
-// MakerGear
-//    #define  DEFAULT_Kp 7.0
-//    #define  DEFAULT_Ki 0.1
-//    #define  DEFAULT_Kd 12
-
-// Mendel Parts V9 on 12V
-//    #define  DEFAULT_Kp 63.0
-//    #define  DEFAULT_Ki 2.25
-//    #define  DEFAULT_Kd 440
+  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
+  // Ultimaker
+  #define  DEFAULT_Kp 22.2
+  #define  DEFAULT_Ki 1.08
+  #define  DEFAULT_Kd 114
+
+  // MakerGear
+  //#define  DEFAULT_Kp 7.0
+  //#define  DEFAULT_Ki 0.1
+  //#define  DEFAULT_Kd 12
+
+  // Mendel Parts V9 on 12V
+  //#define  DEFAULT_Kp 63.0
+  //#define  DEFAULT_Ki 2.25
+  //#define  DEFAULT_Kd 440
+
 #endif // PIDTEMP
 
 //===========================================================================
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-    #define  DEFAULT_bedKp 10.00
-    #define  DEFAULT_bedKi .023
-    #define  DEFAULT_bedKd 305.4
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  #define  DEFAULT_bedKp 10.00
+  #define  DEFAULT_bedKi .023
+  #define  DEFAULT_bedKd 305.4
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from pidautotune
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
 
-// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+  // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
 #endif // PIDTEMPBED
 
 // @section extruder
 // #define COREXY
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 
 
 //   #define Z_PROBE_END_SCRIPT "G1 Z10 F12000\nG1 X15 Y330\nG1 Z0.5\nG1 Z10" //These commands will be executed in the end of G29 routine.
                                                                             //Useful to retract a deployable probe.
-                                                                           
+
   //#define Z_PROBE_SLED // turn on if you have a z-probe mounted on a sled like those designed by Charles Bell
   //#define SLED_DOCKING_OFFSET 5 // the extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
 
 #define DEFAULT_MAX_ACCELERATION      {3000,3000,100,10000}    // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
 
 #define DEFAULT_ACCELERATION          3000    // X, Y, Z and E acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION  3000   // E acceleration in mm/s^2 for retracts
+#define DEFAULT_RETRACT_ACCELERATION  3000    // E acceleration in mm/s^2 for retracts
 #define DEFAULT_TRAVEL_ACCELERATION   3000    // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
 
 // The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
 
 #ifdef EEPROM_SETTINGS
   // To disable EEPROM Serial responses and decrease program space by ~1700 byte: comment this out:
-  #define EEPROM_CHITCHAT // please keep turned on if you can.
+  #define EEPROM_CHITCHAT // Please keep turned on if you can.
 #endif
 
-
 // @section temperature
 
 // Preheat Constants
 // @section lcd
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, 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)
 
 
 // Panucatt VIKI LCD with status LEDs, integrated click & L/R/U/P buttons, separate encoder inputs
 //#define LCD_I2C_VIKI
+  
+// SSD1306 OLED generic display support
+// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
+//#define U8GLIB_SSD1306
 
 // Shift register panels
 // ---------------------
 // 2 wire Non-latching LCD SR from:
 // https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/schematics#!shiftregister-connection
-
+// LCD configuration: http://reprap.org/wiki/SAV_3D_LCD
 //#define SAV_3DLCD
 
 // @section extras

Marlin/example_configurations/SCARA/Configuration.h

 #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 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
+//#define PS_DEFAULT_OFF
+
+// @section temperature
 
 //===========================================================================
 //============================= Thermal Settings ============================
   #define PID_INTEGRAL_DRIVE_MAX PID_MAX  //limit for the integral term
   #define K1 0.95 //smoothing factor within the PID
 
-// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
-// Ultimaker
-//    #define  DEFAULT_Kp 22.2
-//    #define  DEFAULT_Ki 1.08
-//    #define  DEFAULT_Kd 114
-
-// MakerGear
-//    #define  DEFAULT_Kp 7.0
-//    #define  DEFAULT_Ki 0.1
-//    #define  DEFAULT_Kd 12
-
-// Mendel Parts V9 on 12V
-//    #define  DEFAULT_Kp 63.0
-//    #define  DEFAULT_Ki 2.25
-//    #define  DEFAULT_Kd 440
+  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
+  // Ultimaker
+  //#define  DEFAULT_Kp 22.2
+  //#define  DEFAULT_Ki 1.08
+  //#define  DEFAULT_Kd 114
+
+  // MakerGear
+  //#define  DEFAULT_Kp 7.0
+  //#define  DEFAULT_Ki 0.1
+  //#define  DEFAULT_Kd 12
+
+  // Mendel Parts V9 on 12V
+  //#define  DEFAULT_Kp 63.0
+  //#define  DEFAULT_Ki 2.25
+  //#define  DEFAULT_Kd 440
   
-// Jhead MK5: From Autotune
-//    #define  DEFAULT_Kp 20.92
-//    #define  DEFAULT_Ki 1.51
-//    #define  DEFAULT_Kd 72.34
+  // Jhead MK5: From Autotune
+  //#define  DEFAULT_Kp 20.92
+  //#define  DEFAULT_Ki 1.51
+  //#define  DEFAULT_Kd 72.34
     
-// Merlin Hotend: From Autotune
-    #define  DEFAULT_Kp 24.5
-    #define  DEFAULT_Ki 1.72
-    #define  DEFAULT_Kd 87.73
+  // Merlin Hotend: From Autotune
+  #define  DEFAULT_Kp 24.5
+  #define  DEFAULT_Ki 1.72
+  #define  DEFAULT_Kd 87.73
 
 #endif // PIDTEMP
 
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
-
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-//    #define  DEFAULT_bedKp 10.00
-//    #define  DEFAULT_bedKi .023
-//    #define  DEFAULT_bedKd 305.4
-
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
-
-//12v Heatbed Mk3 12V in parallel
-//from pidautotune
-    #define  DEFAULT_bedKp 630.14
-    #define  DEFAULT_bedKi 121.71
-    #define  DEFAULT_bedKd 815.64
+
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  //#define  DEFAULT_bedKp 10.00
+  //#define  DEFAULT_bedKi .023
+  //#define  DEFAULT_bedKd 305.4
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from pidautotune
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
+
+  //12v Heatbed Mk3 12V in parallel
+  //from pidautotune
+  #define  DEFAULT_bedKp 630.14
+  #define  DEFAULT_bedKi 121.71
+  #define  DEFAULT_bedKd 815.64
     
-// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+  // 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
 // #define COREXY
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 
    #define ENDSTOPPULLUP_XMIN  // open pin, inverted
    #define ENDSTOPPULLUP_YMIN  // open pin, inverted
   // #define ENDSTOPPULLUP_ZMIN
+  // #define ENDSTOPPULLUP_ZPROBE
 #endif
 
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 //#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
+// 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 DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
+
+// @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 true
+
+// @section extruder
+
+// For direct drive extruder v9 set to true, for geared extruder set to false.
 #define INVERT_E0_DIR false
 #define INVERT_E1_DIR false
 #define INVERT_E2_DIR false
 #define INVERT_E3_DIR false
 
+// @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.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
-  
+
 //===========================================================================
 //=========================== Manual 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.
 
 
 //   #define Z_PROBE_END_SCRIPT "G1 Z10 F12000\nG1 X15 Y330\nG1 Z0.5\nG1 Z10" //These commands will be executed in the end of G29 routine.
                                                                             //Useful to retract a deployable probe.
-                                                                           
+
   //#define Z_PROBE_SLED // turn on if you have a z-probe mounted on a sled like those designed by Charles Bell
   //#define SLED_DOCKING_OFFSET 5 // the extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
 
 #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 0.1  // Distance between nozzle and print surface after homing.
 #endif
 
+// @section movement
+
 /**
  * MOVEMENT SETTINGS
  */
 #define DEFAULT_RETRACT_ACCELERATION  2000   // E acceleration in mm/s^2 for retracts
 #define DEFAULT_TRAVEL_ACCELERATION   400    // 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                5    // (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...
 
 #ifdef EEPROM_SETTINGS
   // To disable EEPROM Serial responses and decrease program space by ~1700 byte: comment this out:
-  #define EEPROM_CHITCHAT // please keep turned on if you can.
+  #define EEPROM_CHITCHAT // Please keep turned on if you can.
 #endif
 
+// @section temperature
+
 // Preheat Constants
 #define PLA_PREHEAT_HOTEND_TEMP 180
 #define PLA_PREHEAT_HPB_TEMP 70
 #define ABS_PREHEAT_FAN_SPEED 255   // 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, cn, test
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
 //#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
 
 // Panucatt VIKI LCD with status LEDs, integrated click & L/R/U/P buttons, separate encoder inputs
 //#define LCD_I2C_VIKI
+  
+// SSD1306 OLED generic display support
+// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
+//#define U8GLIB_SSD1306
 
 // Shift register panels
 // ---------------------
 // 2 wire Non-latching LCD SR from:
 // https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/schematics#!shiftregister-connection
-
+// LCD configuration: http://reprap.org/wiki/SAV_3D_LCD
 //#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.

Marlin/example_configurations/WITBOX/Configuration.h

 #define SERIAL_PORT 0
 
 // This determines the communication speed of the printer
+// :[2400,9600,19200,38400,57600,115200,250000]
 #define BAUDRATE 115200
 
 // This enables the serial port associated to the Bluetooth interface
 
 // The following define selects which electronics board you have.
 // Please choose the name from boards.h that matches your setup
-#define MOTHERBOARD BOARD_RAMPS_13_EFB
+#ifndef MOTHERBOARD
+  #define MOTHERBOARD BOARD_RAMPS_13_EFB
+#endif
 
 // Optional custom name for your RepStrap or other custom machine
 // Displayed in the LCD "Ready" message
 // #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
+//#define PS_DEFAULT_OFF
+
+// @section temperature
 
 //===========================================================================
 //============================= Thermal Settings ============================
   #define PID_INTEGRAL_DRIVE_MAX PID_MAX  //limit for the integral term
   #define K1 0.95 //smoothing factor within the PID
 
-// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
-// Ultimaker
-//  #define  DEFAULT_Kp 22.2
-//  #define  DEFAULT_Ki 1.08
-//  #define  DEFAULT_Kd 114
-
-// MakerGear
-//    #define  DEFAULT_Kp 7.0
-//    #define  DEFAULT_Ki 0.1
-//    #define  DEFAULT_Kd 12
-
-// Mendel Parts V9 on 12V
-//    #define  DEFAULT_Kp 63.0
-//    #define  DEFAULT_Ki 2.25
-//    #define  DEFAULT_Kd 440
-
-// Witbox
-      #define  DEFAULT_Kp 22.2
-      #define  DEFAULT_Ki 1.08
-      #define  DEFAULT_Kd 114
+  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
+  // Ultimaker
+  //#define  DEFAULT_Kp 22.2
+  //#define  DEFAULT_Ki 1.08
+  //#define  DEFAULT_Kd 114
+
+  // MakerGear
+  //#define  DEFAULT_Kp 7.0
+  //#define  DEFAULT_Ki 0.1
+  //#define  DEFAULT_Kd 12
+
+  // Mendel Parts V9 on 12V
+  //#define  DEFAULT_Kp 63.0
+  //#define  DEFAULT_Ki 2.25
+  //#define  DEFAULT_Kd 440
+
+  // Witbox
+  #define  DEFAULT_Kp 22.2
+  #define  DEFAULT_Ki 1.08
+  #define  DEFAULT_Kd 114
+
 #endif // PIDTEMP
 
 //===========================================================================
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-    #define  DEFAULT_bedKp 10.00
-    #define  DEFAULT_bedKi .023
-    #define  DEFAULT_bedKd 305.4
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  #define  DEFAULT_bedKp 10.00
+  #define  DEFAULT_bedKi .023
+  #define  DEFAULT_bedKd 305.4
 
-// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from pidautotune
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
+
+  // 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
 // #define COREXY
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 
   // #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).
 //#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
+// 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 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 true
 #define INVERT_Y_DIR false
 #define INVERT_Z_DIR true
+
+// @section extruder
+
+// For direct drive extruder v9 set to true, for geared extruder set to false.
 #define INVERT_E0_DIR false
 #define INVERT_E1_DIR false
 #define INVERT_E2_DIR false
 #define INVERT_E3_DIR false
 
+// @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.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
-  
+
 //===========================================================================
 //=========================== Manual 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.
 
 
 //   #define Z_PROBE_END_SCRIPT "G1 Z10 F12000\nG1 X15 Y330\nG1 Z0.5\nG1 Z10" //These commands will be executed in the end of G29 routine.
                                                                             //Useful to retract a deployable probe.
-                                                                           
+
   //#define Z_PROBE_SLED // turn on if you have a z-probe mounted on a sled like those designed by Charles Bell
   //#define SLED_DOCKING_OFFSET 5 // the extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
 
 #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_MAX_ACCELERATION      {1000,1000,10,1000}    // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
 
 #define DEFAULT_ACCELERATION          3000    // X, Y, Z and E acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION  3000   // E acceleration in mm/s^2 for retracts
+#define DEFAULT_RETRACT_ACCELERATION  3000    // E acceleration in mm/s^2 for retracts
 #define DEFAULT_TRAVEL_ACCELERATION   3000    // 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                10.0    // (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...
 
 #ifdef EEPROM_SETTINGS
   // To disable EEPROM Serial responses and decrease program space by ~1700 byte: comment this out:
-  #define EEPROM_CHITCHAT // please keep turned on if you can.
+  #define EEPROM_CHITCHAT // Please keep turned on if you can.
 #endif
 
+// @section temperature
+
 // Preheat Constants
 #define PLA_PREHEAT_HOTEND_TEMP 200
 #define PLA_PREHEAT_HPB_TEMP 0
 #define ABS_PREHEAT_FAN_SPEED 255   // 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, cn, test
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
 //#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
 
 // Panucatt VIKI LCD with status LEDs, integrated click & L/R/U/P buttons, separate encoder inputs
 //#define LCD_I2C_VIKI
+  
+// SSD1306 OLED generic display support
+// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
+//#define U8GLIB_SSD1306
 
 // Shift register panels
 // ---------------------
 // 2 wire Non-latching LCD SR from:
 // https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/schematics#!shiftregister-connection
-
+// LCD configuration: http://reprap.org/wiki/SAV_3D_LCD
 //#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/adafruit/ST7565/Configuration.h

 #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
+//#define PS_DEFAULT_OFF
 
 // @section temperature
 
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
+
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
+
 //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
 //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-    #define  DEFAULT_bedKp 10.00
-    #define  DEFAULT_bedKi .023
-    #define  DEFAULT_bedKd 305.4
+  #define  DEFAULT_bedKp 10.00
+  #define  DEFAULT_bedKi .023
+  #define  DEFAULT_bedKd 305.4
 
 //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
 //from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
 
 // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
 #endif // PIDTEMPBED
 // #define COREXY
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 
 
 //   #define Z_PROBE_END_SCRIPT "G1 Z10 F12000\nG1 X15 Y330\nG1 Z0.5\nG1 Z10" //These commands will be executed in the end of G29 routine.
                                                                             //Useful to retract a deployable probe.
-                                                                           
+
   //#define Z_PROBE_SLED // turn on if you have a z-probe mounted on a sled like those designed by Charles Bell
   //#define SLED_DOCKING_OFFSET 5 // the extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
 
 #define DEFAULT_MAX_ACCELERATION      {3000,3000,100,10000}    // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
 
 #define DEFAULT_ACCELERATION          3000    // X, Y, Z and E acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION  3000   // E acceleration in mm/s^2 for retracts
+#define DEFAULT_RETRACT_ACCELERATION  3000    // E acceleration in mm/s^2 for retracts
 #define DEFAULT_TRAVEL_ACCELERATION   3000    // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
 
 // The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
 //
 // ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
 #define ELB_FULL_GRAPHIC_CONTROLLER
+//#define SDCARDDETECTINVERTED
 
 // The RepRapDiscount Smart Controller (white PCB)
 // http://reprap.org/wiki/RepRapDiscount_Smart_Controller
 
 // Panucatt VIKI LCD with status LEDs, integrated click & L/R/U/P buttons, separate encoder inputs
 //#define LCD_I2C_VIKI
+  
+// SSD1306 OLED generic display support
+// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
+//#define U8GLIB_SSD1306
 
 // Shift register panels
 // ---------------------
 // 2 wire Non-latching LCD SR from:
 // https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/schematics#!shiftregister-connection
-
+// LCD configuration: http://reprap.org/wiki/SAV_3D_LCD
 //#define SAV_3DLCD
 
 // @section extras

Marlin/example_configurations/delta/biv2.5/Configuration.h

 #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
+//#define PS_DEFAULT_OFF
 
 // @section temperature
 
   #define PID_INTEGRAL_DRIVE_MAX PID_MAX  //limit for the integral term
   #define K1 0.95 //smoothing factor within the PID
 
-// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
-// Ultimaker
-    #define  DEFAULT_Kp 22.2
-    #define  DEFAULT_Ki 1.08
-    #define  DEFAULT_Kd 114
-
-// MakerGear
-//    #define  DEFAULT_Kp 7.0
-//    #define  DEFAULT_Ki 0.1
-//    #define  DEFAULT_Kd 12
-
-// Mendel Parts V9 on 12V
-//    #define  DEFAULT_Kp 63.0
-//    #define  DEFAULT_Ki 2.25
-//    #define  DEFAULT_Kd 440
+  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
+  // Ultimaker
+  #define  DEFAULT_Kp 22.2
+  #define  DEFAULT_Ki 1.08
+  #define  DEFAULT_Kd 114
+
+  // MakerGear
+  //#define  DEFAULT_Kp 7.0
+  //#define  DEFAULT_Ki 0.1
+  //#define  DEFAULT_Kd 12
+
+  // Mendel Parts V9 on 12V
+  //#define  DEFAULT_Kp 63.0
+  //#define  DEFAULT_Ki 2.25
+  //#define  DEFAULT_Kd 440
+
 #endif // PIDTEMP
 
 //===========================================================================
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-    #define  DEFAULT_bedKp 10.00
-    #define  DEFAULT_bedKi .023
-    #define  DEFAULT_bedKd 305.4
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  #define  DEFAULT_bedKp 10.00
+  #define  DEFAULT_bedKi .023
+  #define  DEFAULT_bedKd 305.4
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from pidautotune
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
 
-// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+  // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
 #endif // PIDTEMPBED
 
 // @section extruder
 
 #ifdef DELTA
 
-// Make delta curves from many straight lines (linear interpolation).
-// This is a trade-off between visible corners (not enough segments)
-// and processor overload (too many expensive sqrt calls).
-#define DELTA_SEGMENTS_PER_SECOND 100
+  // Make delta curves from many straight lines (linear interpolation).
+  // This is a trade-off between visible corners (not enough segments)
+  // and processor overload (too many expensive sqrt calls).
+  #define DELTA_SEGMENTS_PER_SECOND 100
 
-// NOTE NB all values for DELTA_* values MUST be floating point, so always have a decimal point in them
+  // NOTE NB all values for DELTA_* values MUST be floating point, so always have a decimal point in them
 
-// Center-to-center distance of the holes in the diagonal push rods.
-#define DELTA_DIAGONAL_ROD 440.0 // mm
+  // Center-to-center distance of the holes in the diagonal push rods.
+  #define DELTA_DIAGONAL_ROD 440.0 // mm
 
-// Horizontal offset from middle of printer to smooth rod center.
-#define DELTA_SMOOTH_ROD_OFFSET 330.0 // mm
+  // Horizontal offset from middle of printer to smooth rod center.
+  #define DELTA_SMOOTH_ROD_OFFSET 330.0 // mm
 
-// Horizontal offset of the universal joints on the end effector.
-#define DELTA_EFFECTOR_OFFSET 50.0 // mm
+  // Horizontal offset of the universal joints on the end effector.
+  #define DELTA_EFFECTOR_OFFSET 50.0 // mm
 
-// Horizontal offset of the universal joints on the carriages.
-#define DELTA_CARRIAGE_OFFSET 20.0 // mm
+  // Horizontal offset of the universal joints on the carriages.
+  #define DELTA_CARRIAGE_OFFSET 20.0 // mm
 
-// Horizontal distance bridged by diagonal push rods when effector is centered.
-#define DELTA_RADIUS (DELTA_SMOOTH_ROD_OFFSET-DELTA_EFFECTOR_OFFSET-DELTA_CARRIAGE_OFFSET)
+  // Horizontal distance bridged by diagonal push rods when effector is centered.
+  #define DELTA_RADIUS (DELTA_SMOOTH_ROD_OFFSET-DELTA_EFFECTOR_OFFSET-DELTA_CARRIAGE_OFFSET)
 
-// Print surface diameter/2 minus unreachable space (avoid collisions with vertical towers).
-#define DELTA_PRINTABLE_RADIUS 160
+  // Print surface diameter/2 minus unreachable space (avoid collisions with vertical towers).
+  #define DELTA_PRINTABLE_RADIUS 160
 
 #endif
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 

Marlin/example_configurations/delta/generic/Configuration.h

 #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
+//#define PS_DEFAULT_OFF
 
 // @section temperature
 
   #define PID_INTEGRAL_DRIVE_MAX PID_MAX  //limit for the integral term
   #define K1 0.95 //smoothing factor within the PID
 
-// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
-// Ultimaker
-    #define  DEFAULT_Kp 22.2
-    #define  DEFAULT_Ki 1.08
-    #define  DEFAULT_Kd 114
-
-// MakerGear
-//    #define  DEFAULT_Kp 7.0
-//    #define  DEFAULT_Ki 0.1
-//    #define  DEFAULT_Kd 12
-
-// Mendel Parts V9 on 12V
-//    #define  DEFAULT_Kp 63.0
-//    #define  DEFAULT_Ki 2.25
-//    #define  DEFAULT_Kd 440
+  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
+  // Ultimaker
+  #define  DEFAULT_Kp 22.2
+  #define  DEFAULT_Ki 1.08
+  #define  DEFAULT_Kd 114
+
+  // MakerGear
+  //#define  DEFAULT_Kp 7.0
+  //#define  DEFAULT_Ki 0.1
+  //#define  DEFAULT_Kd 12
+
+  // Mendel Parts V9 on 12V
+  //#define  DEFAULT_Kp 63.0
+  //#define  DEFAULT_Ki 2.25
+  //#define  DEFAULT_Kd 440
+
 #endif // PIDTEMP
 
 //===========================================================================
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-    #define  DEFAULT_bedKp 10.00
-    #define  DEFAULT_bedKi .023
-    #define  DEFAULT_bedKd 305.4
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  #define  DEFAULT_bedKp 10.00
+  #define  DEFAULT_bedKi .023
+  #define  DEFAULT_bedKd 305.4
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from pidautotune
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
 
-// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+  // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
 #endif // PIDTEMPBED
 
 // @section extruder
 
 #ifdef DELTA
 
-// Make delta curves from many straight lines (linear interpolation).
-// This is a trade-off between visible corners (not enough segments)
-// and processor overload (too many expensive sqrt calls).
-#define DELTA_SEGMENTS_PER_SECOND 200
+  // Make delta curves from many straight lines (linear interpolation).
+  // This is a trade-off between visible corners (not enough segments)
+  // and processor overload (too many expensive sqrt calls).
+  #define DELTA_SEGMENTS_PER_SECOND 200
 
-// NOTE NB all values for DELTA_* values MUST be floating point, so always have a decimal point in them
+  // NOTE NB all values for DELTA_* values MUST be floating point, so always have a decimal point in them
 
-// Center-to-center distance of the holes in the diagonal push rods.
-#define DELTA_DIAGONAL_ROD 250.0 // mm
+  // Center-to-center distance of the holes in the diagonal push rods.
+  #define DELTA_DIAGONAL_ROD 250.0 // mm
 
-// Horizontal offset from middle of printer to smooth rod center.
-#define DELTA_SMOOTH_ROD_OFFSET 175.0 // mm
+  // Horizontal offset from middle of printer to smooth rod center.
+  #define DELTA_SMOOTH_ROD_OFFSET 175.0 // mm
 
-// Horizontal offset of the universal joints on the end effector.
-#define DELTA_EFFECTOR_OFFSET 33.0 // mm
+  // Horizontal offset of the universal joints on the end effector.
+  #define DELTA_EFFECTOR_OFFSET 33.0 // mm
 
-// Horizontal offset of the universal joints on the carriages.
-#define DELTA_CARRIAGE_OFFSET 18.0 // mm
+  // Horizontal offset of the universal joints on the carriages.
+  #define DELTA_CARRIAGE_OFFSET 18.0 // mm
 
-// Horizontal distance bridged by diagonal push rods when effector is centered.
-#define DELTA_RADIUS (DELTA_SMOOTH_ROD_OFFSET-DELTA_EFFECTOR_OFFSET-DELTA_CARRIAGE_OFFSET)
+  // Horizontal distance bridged by diagonal push rods when effector is centered.
+  #define DELTA_RADIUS (DELTA_SMOOTH_ROD_OFFSET-DELTA_EFFECTOR_OFFSET-DELTA_CARRIAGE_OFFSET)
 
-// Print surface diameter/2 minus unreachable space (avoid collisions with vertical towers).
-#define DELTA_PRINTABLE_RADIUS 140
+  // Print surface diameter/2 minus unreachable space (avoid collisions with vertical towers).
+  #define DELTA_PRINTABLE_RADIUS 140
 
 #endif
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 

Marlin/example_configurations/delta/kossel_mini/Configuration.h

 #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
+//#define PS_DEFAULT_OFF
 
 // @section temperature
 
   #define PID_INTEGRAL_DRIVE_MAX PID_MAX  //limit for the integral term
   #define K1 0.95 //smoothing factor within the PID
 
-// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
-// Ultimaker
-    #define  DEFAULT_Kp 22.2
-    #define  DEFAULT_Ki 1.08
-    #define  DEFAULT_Kd 114
-
-// MakerGear
-//    #define  DEFAULT_Kp 7.0
-//    #define  DEFAULT_Ki 0.1
-//    #define  DEFAULT_Kd 12
-
-// Mendel Parts V9 on 12V
-//    #define  DEFAULT_Kp 63.0
-//    #define  DEFAULT_Ki 2.25
-//    #define  DEFAULT_Kd 440
+  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
+  // Ultimaker
+  #define  DEFAULT_Kp 22.2
+  #define  DEFAULT_Ki 1.08
+  #define  DEFAULT_Kd 114
+
+  // MakerGear
+  //#define  DEFAULT_Kp 7.0
+  //#define  DEFAULT_Ki 0.1
+  //#define  DEFAULT_Kd 12
+
+  // Mendel Parts V9 on 12V
+  //#define  DEFAULT_Kp 63.0
+  //#define  DEFAULT_Ki 2.25
+  //#define  DEFAULT_Kd 440
+
 #endif // PIDTEMP
 
 //===========================================================================
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-    #define  DEFAULT_bedKp 10.00
-    #define  DEFAULT_bedKi .023
-    #define  DEFAULT_bedKd 305.4
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  #define  DEFAULT_bedKp 10.00
+  #define  DEFAULT_bedKi .023
+  #define  DEFAULT_bedKd 305.4
 
-// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from pidautotune
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
+
+  // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
 #endif // PIDTEMPBED
 
 // @section extruder
 
 #ifdef DELTA
 
-// Make delta curves from many straight lines (linear interpolation).
-// This is a trade-off between visible corners (not enough segments)
-// and processor overload (too many expensive sqrt calls).
-#define DELTA_SEGMENTS_PER_SECOND 200
+  // Make delta curves from many straight lines (linear interpolation).
+  // This is a trade-off between visible corners (not enough segments)
+  // and processor overload (too many expensive sqrt calls).
+  #define DELTA_SEGMENTS_PER_SECOND 200
 
-// NOTE NB all values for DELTA_* values MUST be floating point, so always have a decimal point in them
+  // NOTE NB all values for DELTA_* values MUST be floating point, so always have a decimal point in them
 
-// Center-to-center distance of the holes in the diagonal push rods.
-#define DELTA_DIAGONAL_ROD 215.0 // mm
+  // Center-to-center distance of the holes in the diagonal push rods.
+  #define DELTA_DIAGONAL_ROD 215.0 // mm
 
-// Horizontal offset from middle of printer to smooth rod center.
-#define DELTA_SMOOTH_ROD_OFFSET 145.0 // mm
+  // Horizontal offset from middle of printer to smooth rod center.
+  #define DELTA_SMOOTH_ROD_OFFSET 145.0 // mm
 
-// Horizontal offset of the universal joints on the end effector.
-#define DELTA_EFFECTOR_OFFSET 19.9 // mm
+  // Horizontal offset of the universal joints on the end effector.
+  #define DELTA_EFFECTOR_OFFSET 19.9 // mm
 
-// Horizontal offset of the universal joints on the carriages.
-#define DELTA_CARRIAGE_OFFSET 19.5 // mm
+  // Horizontal offset of the universal joints on the carriages.
+  #define DELTA_CARRIAGE_OFFSET 19.5 // mm
 
-// Horizontal distance bridged by diagonal push rods when effector is centered.
-#define DELTA_RADIUS (DELTA_SMOOTH_ROD_OFFSET-DELTA_EFFECTOR_OFFSET-DELTA_CARRIAGE_OFFSET)
+  // Horizontal distance bridged by diagonal push rods when effector is centered.
+  #define DELTA_RADIUS (DELTA_SMOOTH_ROD_OFFSET-DELTA_EFFECTOR_OFFSET-DELTA_CARRIAGE_OFFSET)
 
-// Print surface diameter/2 minus unreachable space (avoid collisions with vertical towers).
-#define DELTA_PRINTABLE_RADIUS 90
+  // Print surface diameter/2 minus unreachable space (avoid collisions with vertical towers).
+  #define DELTA_PRINTABLE_RADIUS 90
 
 #endif
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 
 // @section bedlevel
 
 #define ENABLE_AUTO_BED_LEVELING // Delete the comment to enable (remove // at the start of the line)
-// #define Z_PROBE_REPEATABILITY_TEST // Z-Probe Repeatability test is not supported in Deltas yet.
+//#define Z_PROBE_REPEATABILITY_TEST // Z-Probe Repeatability test is not supported in Deltas yet.
 
 #ifdef ENABLE_AUTO_BED_LEVELING
 
   // Allen key retractable z-probe as seen on many Kossel delta printers - http://reprap.org/wiki/Kossel#Automatic_bed_leveling_probe
   // Deploys by touching z-axis belt. Retracts by pushing the probe down. Uses Z_MIN_PIN.
   #define Z_PROBE_ALLEN_KEY
+
   #ifdef Z_PROBE_ALLEN_KEY
     // 2 or 3 sets of coordinates for deploying and retracting the spring loaded touch probe on G29,
     // if servo actuated touch probe is not defined. Uncomment as appropriate for your printer/probe.
 
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_1_X 30.0
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_1_Y DELTA_PRINTABLE_RADIUS
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_1_Z 100.0
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_1_FEEDRATE HOMING_FEEDRATE_X
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_2_X 0.0
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_2_Y DELTA_PRINTABLE_RADIUS
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_2_Z 100.0
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_2_FEEDRATE (HOMING_FEEDRATE_X/10)
+
+    //#define Z_PROBE_ALLEN_KEY_STOW_1_X -64.0 // Move the probe into position
+    //#define Z_PROBE_ALLEN_KEY_STOW_1_Y 56.0
+    //#define Z_PROBE_ALLEN_KEY_STOW_1_Z 23.0
+    //#define Z_PROBE_ALLEN_KEY_STOW_1_FEEDRATE HOMING_FEEDRATE_X
+    //#define Z_PROBE_ALLEN_KEY_STOW_2_X -64.0 // Push it down
+    //#define Z_PROBE_ALLEN_KEY_STOW_2_Y 56.0
+    //#define Z_PROBE_ALLEN_KEY_STOW_2_Z 3.0
+    //#define Z_PROBE_ALLEN_KEY_STOW_2_FEEDRATE (HOMING_FEEDRATE_X/10)
+    //#define Z_PROBE_ALLEN_KEY_STOW_3_X -64.0 // Move it up to clear
+    //#define Z_PROBE_ALLEN_KEY_STOW_3_Y 56.0
+    //#define Z_PROBE_ALLEN_KEY_STOW_3_Z 50.0
+    //#define Z_PROBE_ALLEN_KEY_STOW_3_FEEDRATE HOMING_FEEDRATE_X
+
     // Kossel Mini
     #define Z_PROBE_ALLEN_KEY_DEPLOY_1_X 30.0
     #define Z_PROBE_ALLEN_KEY_DEPLOY_1_Y DELTA_PRINTABLE_RADIUS
     #define Z_PROBE_ALLEN_KEY_STOW_3_Z  (Z_PROBE_ALLEN_KEY_STOW_1_Z+Z_PROBE_ALLEN_KEY_STOW_DEPTH)
     #define Z_PROBE_ALLEN_KEY_STOW_3_FEEDRATE (XY_TRAVEL_SPEED/2)
 
+    // Kossel Pro
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_1_X -105.00 // Move left but not quite so far that we'll bump the belt
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_1_Y 0.00
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_1_Z 100.0
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_1_FEEDRATE HOMING_FEEDRATE_X
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_2_X -110.00 // Move outward to position deploy pin to the left of the arm
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_2_Y -125.00
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_2_Z 100.0
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_2_FEEDRATE HOMING_FEEDRATE_X
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_3_X 45.00 // Move right to trigger deploy pin
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_3_Y -125.00
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_3_Z 100.0
+    //#define Z_PROBE_ALLEN_KEY_DEPLOY_3_FEEDRATE (HOMING_FEEDRATE_X/2)
+
+    //#define Z_PROBE_ALLEN_KEY_STOW_1_X 36.00 // Line up with bed retaining clip
+    //#define Z_PROBE_ALLEN_KEY_STOW_1_Y -122.00
+    //#define Z_PROBE_ALLEN_KEY_STOW_1_Z 75.0
+    //#define Z_PROBE_ALLEN_KEY_STOW_1_FEEDRATE HOMING_FEEDRATE_X
+    //#define Z_PROBE_ALLEN_KEY_STOW_2_X 36.00 // move down to retract probe
+    //#define Z_PROBE_ALLEN_KEY_STOW_2_Y -122.00
+    //#define Z_PROBE_ALLEN_KEY_STOW_2_Z 25.0
+    //#define Z_PROBE_ALLEN_KEY_STOW_2_FEEDRATE (HOMING_FEEDRATE_Z/2)
+    //#define Z_PROBE_ALLEN_KEY_STOW_3_X 0.0  // return to 0,0,100
+    //#define Z_PROBE_ALLEN_KEY_STOW_3_Y 0.0
+    //#define Z_PROBE_ALLEN_KEY_STOW_3_Z 100.0
+    //#define Z_PROBE_ALLEN_KEY_STOW_3_FEEDRATE HOMING_FEEDRATE_Z
   #endif
 
   //If defined, the Probe servo will be turned on only during movement and then turned off to avoid jerk
 // 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                 20.0    // (mm/sec) Must be same as XY for delta
-#define DEFAULT_EJERK                 5.0    // (mm/sec)
+#define DEFAULT_EJERK                 5.0     // (mm/sec)
 
 
 //=============================================================================

Marlin/example_configurations/delta/kossel_pro/Configuration.h

 #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
+//#define PS_DEFAULT_OFF
 
 // @section temperature
 
   #define PID_INTEGRAL_DRIVE_MAX PID_MAX  //limit for the integral term
   #define K1 0.95 //smoothing factor within the PID
 
-// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
-// Ultimaker
-//    #define  DEFAULT_Kp 22.2
-//    #define  DEFAULT_Ki 1.08
-//    #define  DEFAULT_Kd 114
-
-// Kossel Pro
-      #define  DEFAULT_Kp 19.30
-      #define  DEFAULT_Ki 3.51
-      #define  DEFAULT_Kd 26.56
-
-// MakerGear
-//    #define  DEFAULT_Kp 7.0
-//    #define  DEFAULT_Ki 0.1
-//    #define  DEFAULT_Kd 12
-
-// Mendel Parts V9 on 12V
-//    #define  DEFAULT_Kp 63.0
-//    #define  DEFAULT_Ki 2.25
-//    #define  DEFAULT_Kd 440
+  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
+  // Ultimaker
+  //#define  DEFAULT_Kp 22.2
+  //#define  DEFAULT_Ki 1.08
+  //#define  DEFAULT_Kd 114
+
+  // Kossel Pro
+  #define  DEFAULT_Kp 19.30
+  #define  DEFAULT_Ki 3.51
+  #define  DEFAULT_Kd 26.56
+
+  // MakerGear
+  //#define  DEFAULT_Kp 7.0
+  //#define  DEFAULT_Ki 0.1
+  //#define  DEFAULT_Kd 12
+
+  // Mendel Parts V9 on 12V
+  //#define  DEFAULT_Kp 63.0
+  //#define  DEFAULT_Ki 2.25
+  //#define  DEFAULT_Kd 440
+
 #endif // PIDTEMP
 
 //===========================================================================
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
-
-//Kossel Pro heated bed plate with borosilicate glass
-//from pidautotune (M303 E-1 S60 C8)
-    #define  DEFAULT_bedKp 370.25
-    #define  DEFAULT_bedKi 62.77
-    #define  DEFAULT_bedKd 545.98
-
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-//    #define  DEFAULT_bedKp 10.00
-//    #define  DEFAULT_bedKi .023
-//    #define  DEFAULT_bedKd 305.4
-
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
-
-// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
+
+  //Kossel Pro heated bed plate with borosilicate glass
+  //from pidautotune (M303 E-1 S60 C8)
+  #define  DEFAULT_bedKp 370.25
+  #define  DEFAULT_bedKi 62.77
+  #define  DEFAULT_bedKd 545.98
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  //#define  DEFAULT_bedKp 10.00
+  //#define  DEFAULT_bedKi .023
+  //#define  DEFAULT_bedKd 305.4
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from pidautotune
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
+
+  // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
 #endif // PIDTEMPBED
 
 // @section extruder
 
 #ifdef DELTA
 
-// Make delta curves from many straight lines (linear interpolation).
-// This is a trade-off between visible corners (not enough segments)
-// and processor overload (too many expensive sqrt calls).
-#define DELTA_SEGMENTS_PER_SECOND 160
+  // Make delta curves from many straight lines (linear interpolation).
+  // This is a trade-off between visible corners (not enough segments)
+  // and processor overload (too many expensive sqrt calls).
+  #define DELTA_SEGMENTS_PER_SECOND 160
 
-// NOTE NB all values for DELTA_* values MUST be floating point, so always have a decimal point in them
+  // NOTE NB all values for DELTA_* values MUST be floating point, so always have a decimal point in them
 
-// Center-to-center distance of the holes in the diagonal push rods.
-#define DELTA_DIAGONAL_ROD 301.0 // mm
+  // Center-to-center distance of the holes in the diagonal push rods.
+  #define DELTA_DIAGONAL_ROD 301.0 // mm
 
-// Horizontal offset from middle of printer to smooth rod center.
-#define DELTA_SMOOTH_ROD_OFFSET 212.357 // mm
+  // Horizontal offset from middle of printer to smooth rod center.
+  #define DELTA_SMOOTH_ROD_OFFSET 212.357 // mm
 
-// Horizontal offset of the universal joints on the end effector.
-#define DELTA_EFFECTOR_OFFSET 30.0 // mm
+  // Horizontal offset of the universal joints on the end effector.
+  #define DELTA_EFFECTOR_OFFSET 30.0 // mm
 
-// Horizontal offset of the universal joints on the carriages.
-#define DELTA_CARRIAGE_OFFSET 30.0 // mm
+  // Horizontal offset of the universal joints on the carriages.
+  #define DELTA_CARRIAGE_OFFSET 30.0 // mm
 
-// Horizontal distance bridged by diagonal push rods when effector is centered.
-#define DELTA_RADIUS (DELTA_SMOOTH_ROD_OFFSET-DELTA_EFFECTOR_OFFSET-DELTA_CARRIAGE_OFFSET)
+  // Horizontal distance bridged by diagonal push rods when effector is centered.
+  #define DELTA_RADIUS (DELTA_SMOOTH_ROD_OFFSET-DELTA_EFFECTOR_OFFSET-DELTA_CARRIAGE_OFFSET)
 
-// Print surface diameter/2 minus unreachable space (avoid collisions with vertical towers).
-#define DELTA_PRINTABLE_RADIUS 127
+  // Print surface diameter/2 minus unreachable space (avoid collisions with vertical towers).
+  #define DELTA_PRINTABLE_RADIUS 127
 
 #endif
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 
 // @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.
+//#define Z_PROBE_REPEATABILITY_TEST  // If not commented out, Z-Probe Repeatability test will be included if Auto Bed Leveling is Enabled.
 
 #ifdef ENABLE_AUTO_BED_LEVELING
 
 
     #define MIN_PROBE_EDGE 10 // The probe square sides can be no smaller than this
 
-    // Set the number of grid points per dimension
-    // You probably don't need more than 3 (squared=9)
+    // Non-linear bed leveling will be used.
+    // Compensate by interpolating between the nearest four Z probe values for each point.
+    // Useful for deltas where the print surface may appear like a bowl or dome shape.
+    // Works best with ACCURATE_BED_LEVELING_POINTS 5 or higher.
     #define AUTO_BED_LEVELING_GRID_POINTS 7
 
   #else  // !AUTO_BED_LEVELING_GRID
  * MOVEMENT SETTINGS
  */
 
-/// delta homing speeds must be the same on xyz
+// delta homing speeds must be the same on xyz
 #define HOMING_FEEDRATE_X (200*60)
 #define HOMING_FEEDRATE_Y (200*60)
 #define HOMING_FEEDRATE_Z (200*60)

Marlin/example_configurations/makibox/Configuration.h

 #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 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
+//#define PS_DEFAULT_OFF
+
+// @section temperature
 
 //===========================================================================
 //============================= Thermal Settings ============================
   #define PID_INTEGRAL_DRIVE_MAX PID_MAX  //limit for the integral term
   #define K1 0.95 //smoothing factor within the PID
 
-// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
-// Ultimaker
-    #define  DEFAULT_Kp 22.2
-    #define  DEFAULT_Ki 1.08
-    #define  DEFAULT_Kd 114
-
-// MakerGear
-//    #define  DEFAULT_Kp 7.0
-//    #define  DEFAULT_Ki 0.1
-//    #define  DEFAULT_Kd 12
-
-// Mendel Parts V9 on 12V
-//    #define  DEFAULT_Kp 63.0
-//    #define  DEFAULT_Ki 2.25
-//    #define  DEFAULT_Kd 440
+  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
+  // Ultimaker
+  #define  DEFAULT_Kp 22.2
+  #define  DEFAULT_Ki 1.08
+  #define  DEFAULT_Kd 114
+
+  // MakerGear
+  //#define  DEFAULT_Kp 7.0
+  //#define  DEFAULT_Ki 0.1
+  //#define  DEFAULT_Kd 12
+
+  // Mendel Parts V9 on 12V
+  //#define  DEFAULT_Kp 63.0
+  //#define  DEFAULT_Ki 2.25
+  //#define  DEFAULT_Kd 440
+
 #endif // PIDTEMP
 
 //===========================================================================
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-    #define  DEFAULT_bedKp 10.00
-    #define  DEFAULT_bedKi .023
-    #define  DEFAULT_bedKd 305.4
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  #define  DEFAULT_bedKp 10.00
+  #define  DEFAULT_bedKi .023
+  #define  DEFAULT_bedKd 305.4
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from pidautotune
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
 
-// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+  // 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
 // #define COREXY
 
 // Enable this option for Toshiba steppers
-// #define CONFIG_STEPPERS_TOSHIBA
+//#define CONFIG_STEPPERS_TOSHIBA
 
 // @section homing
 
   // #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).
 //#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
+// 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 DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
+
+// @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
 
+// @section extruder
+
+// For direct drive extruder v9 set to true, for geared extruder set to false.
 #define INVERT_E0_DIR true
 #define INVERT_E1_DIR false
 #define INVERT_E2_DIR false
 #define INVERT_E3_DIR false
 
+// @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.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
+
 //===========================================================================
 //=========================== Manual 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.
 
 
 //   #define Z_PROBE_END_SCRIPT "G1 Z10 F12000\nG1 X15 Y330\nG1 Z0.5\nG1 Z10" //These commands will be executed in the end of G29 routine.
                                                                             //Useful to retract a deployable probe.
-                                                                           
+
   //#define Z_PROBE_SLED // turn on if you have a z-probe mounted on a sled like those designed by Charles Bell
   //#define SLED_DOCKING_OFFSET 5 // the extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
 
 #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_MAX_ACCELERATION      {2000,2000,30,10000}    // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for skeinforge 40+, for older versions raise them a lot.
 
 #define DEFAULT_ACCELERATION          3000    // X, Y, Z and E acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION  3000   // E acceleration in mm/s^2 for retracts
+#define DEFAULT_RETRACT_ACCELERATION  3000    // E acceleration in mm/s^2 for retracts
 #define DEFAULT_TRAVEL_ACCELERATION   3000    // 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...
 
 #ifdef EEPROM_SETTINGS
   // To disable EEPROM Serial responses and decrease program space by ~1700 byte: comment this out:
-  #define EEPROM_CHITCHAT // please keep turned on if you can.
+  #define EEPROM_CHITCHAT // Please keep turned on if you can.
 #endif
 
+// @section temperature
+
 // Preheat Constants
 #define PLA_PREHEAT_HOTEND_TEMP 180
 #define PLA_PREHEAT_HPB_TEMP 70
 #define ABS_PREHEAT_FAN_SPEED 255   // 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, cn, test
-
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
 //#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
 
 // Panucatt VIKI LCD with status LEDs, integrated click & L/R/U/P buttons, separate encoder inputs
 //#define LCD_I2C_VIKI
+  
+// SSD1306 OLED generic display support
+// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
+//#define U8GLIB_SSD1306
 
 // Shift register panels
 // ---------------------
 // 2 wire Non-latching LCD SR from:
 // https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/schematics#!shiftregister-connection
-
+// LCD configuration: http://reprap.org/wiki/SAV_3D_LCD
 //#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/tvrrug/Round2/Configuration.h

 #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 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
+//#define PS_DEFAULT_OFF
+
+// @section temperature
 
 //===========================================================================
 //============================= Thermal Settings ============================
   #define PID_INTEGRAL_DRIVE_MAX PID_MAX  //limit for the integral term
   #define K1 0.95 //smoothing factor within the PID
 
-// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
-// J-Head Mk V-B
-    #define  DEFAULT_Kp 25.05
-    #define  DEFAULT_Ki 2.30
-    #define  DEFAULT_Kd 68.15
-
-// Ultimaker
-//    #define  DEFAULT_Kp 22.2
-//    #define  DEFAULT_Ki 1.08
-//    #define  DEFAULT_Kd 114
-
-// MakerGear
-//    #define  DEFAULT_Kp 7.0
-//    #define  DEFAULT_Ki 0.1
-//    #define  DEFAULT_Kd 12
-
-// Mendel Parts V9 on 12V
-//    #define  DEFAULT_Kp 63.0
-//    #define  DEFAULT_Ki 2.25
-//    #define  DEFAULT_Kd 440
+  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
+  // J-Head Mk V-B
+  #define  DEFAULT_Kp 25.05
+  #define  DEFAULT_Ki 2.30
+  #define  DEFAULT_Kd 68.15
+
+  // Ultimaker
+  //#define  DEFAULT_Kp 22.2
+  //#define  DEFAULT_Ki 1.08
+  //#define  DEFAULT_Kd 114
+
+  // MakerGear
+  //#define  DEFAULT_Kp 7.0
+  //#define  DEFAULT_Ki 0.1
+  //#define  DEFAULT_Kd 12
+
+  // Mendel Parts V9 on 12V
+  //#define  DEFAULT_Kp 63.0
+  //#define  DEFAULT_Ki 2.25
+  //#define  DEFAULT_Kd 440
+
 #endif // PIDTEMP
 
 //===========================================================================
 //#define PID_BED_DEBUG // Sends debug data to the serial port.
 
 #ifdef PIDTEMPBED
-    #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
-    #define  DEFAULT_bedKp 10.00
-    #define  DEFAULT_bedKi .023
-    #define  DEFAULT_bedKd 305.4
+  #define PID_BED_INTEGRAL_DRIVE_MAX MAX_BED_POWER //limit for the integral term
+
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  #define  DEFAULT_bedKp 10.00
+  #define  DEFAULT_bedKi .023
+  #define  DEFAULT_bedKd 305.4
 
-//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
-//from pidautotune
-//    #define  DEFAULT_bedKp 97.1
-//    #define  DEFAULT_bedKi 1.41
-//    #define  DEFAULT_bedKd 1675.16
+  //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  //from pidautotune
+  //#define  DEFAULT_bedKp 97.1
+  //#define  DEFAULT_bedKi 1.41
+  //#define  DEFAULT_bedKd 1675.16
 
-// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+  // 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
   // #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).
 //#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
+// 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 1
 #define Y_ENABLE_ON 1
 #define Z_ENABLE_ON 1
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false
+
+// @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 true
+
+// @section extruder
+
+// For direct drive extruder v9 set to true, for geared extruder set to false.
 #define INVERT_E0_DIR false
 #define INVERT_E1_DIR false
 #define INVERT_E2_DIR false
 #define INVERT_E3_DIR false
 
+// @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 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.
 
 
 //   #define Z_PROBE_END_SCRIPT "G1 Z10 F12000\nG1 X15 Y330\nG1 Z0.5\nG1 Z10" //These commands will be executed in the end of G29 routine.
                                                                             //Useful to retract a deployable probe.
-                                                                           
+
   //#define Z_PROBE_SLED // turn on if you have a z-probe mounted on a sled like those designed by Charles Bell
   //#define SLED_DOCKING_OFFSET 5 // the extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
 
 #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  3000   // E acceleration in mm/s^2 for retracts
 #define DEFAULT_TRAVEL_ACCELERATION   500    // 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...
 
 #ifdef EEPROM_SETTINGS
   // To disable EEPROM Serial responses and decrease program space by ~1700 byte: comment this out:
-  #define EEPROM_CHITCHAT // please keep turned on if you can.
+  #define EEPROM_CHITCHAT // Please keep turned on if you can.
 #endif
 
+// @section temperature
+
 // Preheat Constants
 #define PLA_PREHEAT_HOTEND_TEMP 180
 #define PLA_PREHEAT_HPB_TEMP 70
 #define ABS_PREHEAT_FAN_SPEED 255   // 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, cn, test
-
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
 //#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
 
 // Panucatt VIKI LCD with status LEDs, integrated click & L/R/U/P buttons, separate encoder inputs
 //#define LCD_I2C_VIKI
+  
+// SSD1306 OLED generic display support
+// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
+//#define U8GLIB_SSD1306
 
 // Shift register panels
 // ---------------------
 // 2 wire Non-latching LCD SR from:
 // https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/schematics#!shiftregister-connection
-
+// LCD configuration: http://reprap.org/wiki/SAV_3D_LCD
 //#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