Azteeg X3 Pro Pin Revisions

I added the fan pins in here and left them at -1 in configuration_adv.h
and it works fine. Pinned for a 4 extruder from 1-4 and HE5 being the
controller fan, HE6 being the Extruder Auto Fan/Water pump in the Kraken
case, and HE7 being for part cooling fan. Added in descriptions for the
MIN MAX pin swap and for servo motor additions.

Marlin/pins_AZTEEG_X3_PRO.h

@@ -5,9 +5,35 @@
 #include "pins_RAMPS_13.h"
 
 #undef FAN_PIN
-#define FAN_PIN             9 // (Sprinter config)
-
+#define FAN_PIN             6 //Part Cooling System
 #define BEEPER             33
+#define CONTROLLERFAN_PIN   4 //Pin used for the fan to cool motherboard (-1 to disable)
+//Fans/Water Pump to cool the hotend cool side.
+#define EXTRUDER_0_AUTO_FAN_PIN   5
+#define EXTRUDER_1_AUTO_FAN_PIN   5
+#define EXTRUDER_2_AUTO_FAN_PIN   5
+#define EXTRUDER_3_AUTO_FAN_PIN   5
+//
+//This section is to swap the MIN and MAX pins because the X3 Pro comes with only
+//MIN endstops soldered onto the board. Delta code wants the homing endstops to be 
+//the MAX so I swapped them here. Comment them out with // if you want them original.
+//Note: I had to solder on the additional MAX Endstop pins to attach a Z-Probe 
+//endstop switch.
+//
+#undef X_MIN_PIN
+#undef X_MAX_PIN
+#undef Y_MIN_PIN
+#undef Y_MAX_PIN
+#undef Z_MIN_PIN
+#undef Z_MAX_PIN
+
+#define X_MIN_PIN           2
+#define X_MAX_PIN           3
+#define Y_MIN_PIN          15
+#define Y_MAX_PIN          14
+#define Z_MIN_PIN          19
+#define Z_MAX_PIN          18
+//
 
 #define E2_STEP_PIN        23
 #define E2_DIR_PIN         25
@@ -24,7 +50,7 @@
 #undef HEATER_1_PIN
 #undef HEATER_2_PIN
 #undef HEATER_3_PIN
-#define HEATER_1_PIN       -1
+#define HEATER_1_PIN        9
 #define HEATER_2_PIN       16
 #define HEATER_3_PIN       17
 #define HEATER_4_PIN        4
@@ -39,3 +65,26 @@
 #define TEMP_4_PIN         10   // ANALOG NUMBERING
 #define TC1                 4   // ANALOG NUMBERING Thermo couple on Azteeg X3Pro
 #define TC2                 5   // ANALOG NUMBERING Thermo couple on Azteeg X3Pro
+
+//
+//These Servo pins are for when they are defined. Tested for usage with bed leveling
+//on a Delta with 1 servo. Running through the Z servo endstop in code. 
+//Physical wire attachment was done on EXT1 on the GND, 5V, and D47 pins.
+//
+#undef SERVO0_PIN
+#undef SERVO1_PIN
+#undef SERVO2_PIN
+#undef SERVO3_PIN
+
+#ifdef NUM_SERVOS
+  #define SERVO0_PIN         -1
+  #if NUM_SERVOS > 1
+    #define SERVO1_PIN       -1
+    #if NUM_SERVOS > 2
+      #define SERVO2_PIN     47
+      #if NUM_SERVOS > 3
+        #define SERVO3_PIN   -1
+      #endif
+    #endif
+  #endif
+#endif