Merge pull request #1556 from thinkyhead/enhanced_g29

Enhanced G29

Marlin/Configuration.h

@@ -428,9 +428,9 @@ const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of
 
   // these are the offsets to the probe relative to the extruder tip (Hotend - Probe)
   // X and Y offsets must be integers
-  #define X_PROBE_OFFSET_FROM_EXTRUDER -25
-  #define Y_PROBE_OFFSET_FROM_EXTRUDER -29
-  #define Z_PROBE_OFFSET_FROM_EXTRUDER -12.35
+  #define X_PROBE_OFFSET_FROM_EXTRUDER -25     // -left  +right
+  #define Y_PROBE_OFFSET_FROM_EXTRUDER -29     // -front +behind
+  #define Z_PROBE_OFFSET_FROM_EXTRUDER -12.35  // -below (always!)
 
   #define Z_RAISE_BEFORE_HOMING 4       // (in mm) Raise Z before homing (G28) for Probe Clearance.
                                         // Be sure you have this distance over your Z_MAX_POS in case