diff --git a/Marlin/example_configurations/delta/generic/Configuration.h b/Marlin/example_configurations/delta/generic/Configuration.h
index bbbcdbaae4..41eb19f4af 100644
--- a/Marlin/example_configurations/delta/generic/Configuration.h
+++ b/Marlin/example_configurations/delta/generic/Configuration.h
@@ -107,11 +107,11 @@ Here are some standard links for getting your machine calibrated:
 // Horizontal offset of the universal joints on the carriages.
 #define DELTA_CARRIAGE_OFFSET 18.0 // mm
 
-// Effective horizontal distance bridged by diagonal push rods.
+// 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
+#define DELTA_PRINTABLE_RADIUS 140
 
 
 //===========================================================================
@@ -391,10 +391,10 @@ const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of
 #define max_software_endstops true  // If true, axis won't move to coordinates greater than the defined lengths below.
 
 // Travel limits after homing (units are in mm)
-#define X_MAX_POS 90
-#define X_MIN_POS -90
-#define Y_MAX_POS 90
-#define Y_MIN_POS -90
+#define X_MAX_POS DELTA_PRINTABLE_RADIUS
+#define X_MIN_POS -DELTA_PRINTABLE_RADIUS
+#define Y_MAX_POS DELTA_PRINTABLE_RADIUS
+#define Y_MIN_POS -DELTA_PRINTABLE_RADIUS
 #define Z_MAX_POS MANUAL_Z_HOME_POS
 #define Z_MIN_POS 0
 
@@ -441,7 +441,9 @@ const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of
   #define LEFT_PROBE_BED_POSITION -DELTA_PROBABLE_RADIUS
   #define RIGHT_PROBE_BED_POSITION DELTA_PROBABLE_RADIUS
   #define BACK_PROBE_BED_POSITION DELTA_PROBABLE_RADIUS
-  #define FRONT_PROBE_BED_POSITION -DELTA_PROBABLE_RADIUS   
+  #define FRONT_PROBE_BED_POSITION -DELTA_PROBABLE_RADIUS  
+
+  #define MIN_PROBE_EDGE 10 // The probe square sides can be no smaller than this      
 
   // Non-linear bed leveling will be used.
   // Compensate by interpolating between the nearest four Z probe values for each point.
@@ -532,7 +534,6 @@ const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of
 #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.
@@ -652,7 +653,7 @@ const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of
 // #define DELTA_CALIBRATION_MENU
 
 /**
- * I2C PANELS
+ * I2C Panels
  */
 
 //#define LCD_I2C_SAINSMART_YWROBOT
diff --git a/Marlin/example_configurations/delta/kossel_mini/Configuration.h b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
index 7e58bb0b75..8381e15230 100644
--- a/Marlin/example_configurations/delta/kossel_mini/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
@@ -107,7 +107,6 @@ Here are some standard links for getting your machine calibrated:
 // 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)
 
@@ -531,8 +530,8 @@ const bool Z_MAX_ENDSTOP_INVERTING = false; // set to true to invert the logic o
 #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.
 
-#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
+#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_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).