Added default configurations for deltas when DELTA is defined

Marlin/Configuration.h

 //============================== Delta Settings =============================
 //===========================================================================
 // Enable DELTA kinematics
-//#define DELTA
+#define DELTA
 
 // Make delta curves from many straight lines (linear interpolation).
 // This is a trade-off between visible corners (not enough segments)
 #endif
 
 // The pullups are needed if you directly connect a mechanical endswitch between the signal and ground pins.
+#ifdef DELTA
+const bool X_ENDSTOPS_INVERTING = false; // set to true to invert the logic of the endstops.
+const bool Y_ENDSTOPS_INVERTING = false; // set to true to invert the logic of the endstops.
+const bool Z_ENDSTOPS_INVERTING = false; // set to true to invert the logic of the endstops.
+
+#else
 const bool X_ENDSTOPS_INVERTING = true; // set to true to invert the logic of the endstops.
 const bool Y_ENDSTOPS_INVERTING = true; // set to true to invert the logic of the endstops.
 const bool Z_ENDSTOPS_INVERTING = true; // set to true to invert the logic of the endstops.
+#endif // DELTA
+
+#ifdef DELTA
+// deltas never have min endstops
+#define DISABLE_MIN_ENDSTOPS
+
+#else
+
 //#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
+#endif // delta
 
 // Disable max endstops for compatibility with endstop checking routine
 #if defined(COREXY) && !defined(DISABLE_MAX_ENDSTOPS)
 #define DISABLE_Z false
 #define DISABLE_E false // For all extruders
 
-#define INVERT_X_DIR true    // for Mendel set to false, for Orca set to true
+#ifdef DELTA
+#define INVERT_X_DIR false // DELTA does not invert
+#define INVERT_Y_DIR false
+#define INVERT_Z_DIR false
+
+#else
+
+#define INVERT_X_DIR true     // for Mendel set to false, for Orca set to true
 #define INVERT_Y_DIR false    // for Mendel set to true, for Orca set to false
 #define INVERT_Z_DIR true     // for Mendel set to false, for Orca set to true
+#endif // DELTA
+
 #define INVERT_E0_DIR false   // for direct drive extruder v9 set to true, for geared extruder set to false
 #define INVERT_E1_DIR false    // for direct drive extruder v9 set to true, for geared extruder set to false
 #define INVERT_E2_DIR false   // for direct drive extruder v9 set to true, for geared extruder set to false
 
 // ENDSTOP SETTINGS:
 // Sets direction of endstops when homing; 1=MAX, -1=MIN
+#ifdef DELTA
+// deltas always home to max
+#define X_HOME_DIR 1
+#define Y_HOME_DIR 1
+#define Z_HOME_DIR 1
+#define min_software_endstops false // If true, axis won't move to coordinates less than HOME_POS.
+#define max_software_endstops false  // If true, axis won't move to coordinates greater than the defined lengths below.
+
+#else
+
 #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.
+#endif // delta
+
 // Travel limits after homing
 #define X_MAX_POS 205
 #define X_MIN_POS 0
 //#define BED_CENTER_AT_0_0  // If defined, the center of the bed is at (X=0, Y=0)
 
 //Manual homing switch locations:
+
+#ifdef DELTA
+#define MANUAL_HOME_POSITIONS  // MANUAL_*_HOME_POS below will be used
 // For deltabots this means top and center of the cartesian print volume.
 #define MANUAL_X_HOME_POS 0
 #define MANUAL_Y_HOME_POS 0
+#define MANUAL_Z_HOME_POS 250 // For delta: Distance between nozzle and print surface after homing.
+
+#else
+
+#define MANUAL_X_HOME_POS 0
+#define MANUAL_Y_HOME_POS 0
 #define MANUAL_Z_HOME_POS 0
-//#define MANUAL_Z_HOME_POS 402 // For delta: Distance between nozzle and print surface after homing.
+#endif // DELTA
 
 //// MOVEMENT SETTINGS
 #define NUM_AXIS 4 // The axis order in all axis related arrays is X, Y, Z, E
+
+#ifdef DELTA
+// delta homing speeds must be the same on xyz
+#define HOMING_FEEDRATE {200*60, 200*60, 200*60, 0}  // set the homing speeds (mm/min)
+
+#else
+
 #define HOMING_FEEDRATE {50*60, 50*60, 4*60, 0}  // set the homing speeds (mm/min)
+#endif // DELTA
 
 // default settings
+#ifdef DELTA
+// delta speeds must be the same on xyz
+#define DEFAULT_AXIS_STEPS_PER_UNIT   {80, 80, 80, 760*1.1}  // default steps per unit for Kossel (GT2, 20 tooth)
+#define DEFAULT_MAX_FEEDRATE          {500, 500, 500, 25}    // (mm/sec)
+#define DEFAULT_MAX_ACCELERATION      {9000,9000,9000,10000}    // 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.
+
+#else
 
 #define DEFAULT_AXIS_STEPS_PER_UNIT   {78.7402,78.7402,200.0*8/3,760*1.1}  // default steps per unit for Ultimaker
 #define DEFAULT_MAX_FEEDRATE          {500, 500, 5, 25}    // (mm/sec)
 #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.
 
+#endif // DELTA
+
 #define DEFAULT_ACCELERATION          3000    // X, Y, Z and E max acceleration in mm/s^2 for printing moves
 #define DEFAULT_RETRACT_ACCELERATION  3000   // X, Y, Z and E max acceleration in mm/s^2 for retracts
 

Marlin/Configuration_adv.h

 
 //homing hits the endstop, then retracts by this distance, before it tries to slowly bump again:
 #define X_HOME_RETRACT_MM 5 
-#define Y_HOME_RETRACT_MM 5 
-#define Z_HOME_RETRACT_MM 1 
+#define Y_HOME_RETRACT_MM 5
+#ifdef DELTA
+#define Z_HOME_RETRACT_MM 5
+#else
+#define Z_HOME_RETRACT_MM 1
+#endif
+
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}