Merge pull request #11062 from TheLongAndOnly/triplez-2.0.x

Marlin/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/HAL/HAL_AVR/SanityCheck.h

@@ -106,6 +106,7 @@
     || defined(Y2_HARDWARE_SERIAL) \
     || defined(Z_HARDWARE_SERIAL ) \
     || defined(Z2_HARDWARE_SERIAL) \
+    || defined(Z3_HARDWARE_SERIAL) \
     || defined(E0_HARDWARE_SERIAL) \
     || defined(E1_HARDWARE_SERIAL) \
     || defined(E2_HARDWARE_SERIAL) \

Marlin/src/HAL/HAL_AVR/endstop_interrupts.h

@@ -225,6 +225,26 @@ void setup_endstop_interrupts( void ) {
     #endif
   #endif
 
+  #if HAS_Z3_MAX
+    #if (digitalPinToInterrupt(Z3_MAX_PIN) != NOT_AN_INTERRUPT)
+      attachInterrupt(digitalPinToInterrupt(Z3_MAX_PIN), endstop_ISR, CHANGE);
+    #else
+      // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
+      static_assert(digitalPinToPCICR(Z3_MAX_PIN) != NULL, "Z3_MAX_PIN is not interrupt-capable");
+      pciSetup(Z3_MAX_PIN);
+    #endif
+  #endif
+
+  #if HAS_Z3_MIN
+    #if (digitalPinToInterrupt(Z3_MIN_PIN) != NOT_AN_INTERRUPT)
+      attachInterrupt(digitalPinToInterrupt(Z3_MIN_PIN), endstop_ISR, CHANGE);
+    #else
+      // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
+      static_assert(digitalPinToPCICR(Z3_MIN_PIN) != NULL, "Z3_MIN_PIN is not interrupt-capable");
+      pciSetup(Z3_MIN_PIN);
+    #endif
+  #endif
+
   #if HAS_Z_MIN_PROBE_PIN
     #if (digitalPinToInterrupt(Z_MIN_PROBE_PIN) != NOT_AN_INTERRUPT)
       attachInterrupt(digitalPinToInterrupt(Z_MIN_PROBE_PIN), endstop_ISR, CHANGE);

Marlin/src/HAL/HAL_DUE/endstop_interrupts.h

@@ -72,6 +72,12 @@ void setup_endstop_interrupts(void) {
   #if HAS_Z2_MIN
     attachInterrupt(digitalPinToInterrupt(Z2_MIN_PIN), endstop_ISR, CHANGE);
   #endif
+  #if HAS_Z3_MAX
+    attachInterrupt(digitalPinToInterrupt(Z3_MAX_PIN), endstop_ISR, CHANGE);
+  #endif
+  #if HAS_Z3_MIN
+    attachInterrupt(digitalPinToInterrupt(Z3_MIN_PIN), endstop_ISR, CHANGE);
+  #endif
   #if HAS_Z_MIN_PROBE_PIN
     attachInterrupt(digitalPinToInterrupt(Z_MIN_PROBE_PIN), endstop_ISR, CHANGE);
   #endif

Marlin/src/HAL/HAL_ESP32/endstop_interrupts.h

@@ -67,6 +67,12 @@ void setup_endstop_interrupts(void) {
   #if HAS_Z2_MIN
     attachInterrupt(digitalPinToInterrupt(Z2_MIN_PIN), endstop_ISR, CHANGE);
   #endif
+  #if HAS_Z3_MAX
+    attachInterrupt(digitalPinToInterrupt(Z3_MAX_PIN), endstop_ISR, CHANGE);
+  #endif
+  #if HAS_Z3_MIN
+    attachInterrupt(digitalPinToInterrupt(Z3_MIN_PIN), endstop_ISR, CHANGE);
+  #endif
   #if HAS_Z_MIN_PROBE_PIN
     attachInterrupt(digitalPinToInterrupt(Z_MIN_PROBE_PIN), endstop_ISR, CHANGE);
   #endif

Marlin/src/HAL/HAL_LPC1768/endstop_interrupts.h

@@ -91,6 +91,12 @@ void setup_endstop_interrupts(void) {
     #endif
     attachInterrupt(digitalPinToInterrupt(Z2_MIN_PIN), endstop_ISR, CHANGE);
   #endif
+  #if HAS_Z3_MAX
+    attachInterrupt(digitalPinToInterrupt(Z3_MAX_PIN), endstop_ISR, CHANGE);
+  #endif
+  #if HAS_Z3_MIN
+    attachInterrupt(digitalPinToInterrupt(Z3_MIN_PIN), endstop_ISR, CHANGE);
+  #endif
   #if HAS_Z_MIN_PROBE_PIN
     #if !LPC1768_PIN_INTERRUPT_M(Z_MIN_PROBE_PIN)
       #error "Z_MIN_PROBE_PIN is not an INTERRUPT capable pin."

Marlin/src/HAL/HAL_STM32F1/endstop_interrupts.h

@@ -79,6 +79,12 @@ void setup_endstop_interrupts(void) {
   #if HAS_Z2_MIN
     attachInterrupt(Z2_MIN_PIN, endstop_ISR, CHANGE);
   #endif
+  #if HAS_Z3_MAX
+    attachInterrupt(Z3_MAX_PIN, endstop_ISR, CHANGE);
+  #endif
+  #if HAS_Z3_MIN
+    attachInterrupt(Z3_MIN_PIN, endstop_ISR, CHANGE);
+  #endif
   #if HAS_Z_MIN_PROBE_PIN
     attachInterrupt(Z_MIN_PROBE_PIN, endstop_ISR, CHANGE);
   #endif

Marlin/src/HAL/HAL_STM32F4/endstop_interrupts.h

@@ -54,6 +54,12 @@ void setup_endstop_interrupts(void) {
   #if HAS_Z2_MIN
     attachInterrupt(Z2_MIN_PIN, endstop_ISR, CHANGE);
   #endif
+  #if HAS_Z3_MAX
+    attachInterrupt(Z3_MAX_PIN, endstop_ISR, CHANGE);
+  #endif
+  #if HAS_Z3_MIN
+    attachInterrupt(Z3_MIN_PIN, endstop_ISR, CHANGE);
+  #endif
   #if HAS_Z_MIN_PROBE_PIN
     attachInterrupt(Z_MIN_PROBE_PIN, endstop_ISR, CHANGE);
   #endif

Marlin/src/HAL/HAL_STM32F7/endstop_interrupts.h

@@ -56,6 +56,12 @@ void setup_endstop_interrupts(void) {
   #if HAS_Z2_MIN
     attachInterrupt(Z2_MIN_PIN, endstop_ISR, CHANGE);
   #endif
+  #if HAS_Z3_MAX
+    attachInterrupt(Z3_MAX_PIN, endstop_ISR, CHANGE);
+  #endif
+  #if HAS_Z3_MIN
+    attachInterrupt(Z3_MIN_PIN, endstop_ISR, CHANGE);
+  #endif
   #if HAS_Z_MIN_PROBE_PIN
     attachInterrupt(Z_MIN_PROBE_PIN, endstop_ISR, CHANGE);
   #endif

Marlin/src/HAL/HAL_TEENSY35_36/endstop_interrupts.h

@@ -43,44 +43,40 @@
 void endstop_ISR(void) { endstops.update(); }
 
 /**
- *  Endstop interrupts for Due based targets.
- *  On Due, all pins support external interrupt capability.
+ * Endstop interrupts for Due based targets.
+ * On Due, all pins support external interrupt capability.
  */
-
 void setup_endstop_interrupts( void ) {
-
   #if HAS_X_MAX
     attachInterrupt(digitalPinToInterrupt(X_MAX_PIN), endstop_ISR, CHANGE); // assign it
   #endif
-
   #if HAS_X_MIN
     attachInterrupt(digitalPinToInterrupt(X_MIN_PIN), endstop_ISR, CHANGE);
   #endif
-
   #if HAS_Y_MAX
     attachInterrupt(digitalPinToInterrupt(Y_MAX_PIN), endstop_ISR, CHANGE);
   #endif
-
   #if HAS_Y_MIN
     attachInterrupt(digitalPinToInterrupt(Y_MIN_PIN), endstop_ISR, CHANGE);
   #endif
-
   #if HAS_Z_MAX
     attachInterrupt(digitalPinToInterrupt(Z_MAX_PIN), endstop_ISR, CHANGE);
   #endif
-
   #if HAS_Z_MIN
      attachInterrupt(digitalPinToInterrupt(Z_MIN_PIN), endstop_ISR, CHANGE);
   #endif
-
   #if HAS_Z2_MAX
     attachInterrupt(digitalPinToInterrupt(Z2_MAX_PIN), endstop_ISR, CHANGE);
   #endif
-
   #if HAS_Z2_MIN
     attachInterrupt(digitalPinToInterrupt(Z2_MIN_PIN), endstop_ISR, CHANGE);
   #endif
-
+  #if HAS_Z3_MAX
+    attachInterrupt(digitalPinToInterrupt(Z3_MAX_PIN), endstop_ISR, CHANGE);
+  #endif
+  #if HAS_Z3_MIN
+    attachInterrupt(digitalPinToInterrupt(Z3_MIN_PIN), endstop_ISR, CHANGE);
+  #endif
   #if HAS_Z_MIN_PROBE_PIN
     attachInterrupt(digitalPinToInterrupt(Z_MIN_PROBE_PIN), endstop_ISR, CHANGE);
   #endif

Marlin/src/Marlin.h

@@ -64,7 +64,10 @@ void manage_inactivity(const bool ignore_stepper_queue=false);
   #define disable_Y() NOOP
 #endif
 
-#if HAS_Z2_ENABLE
+#if HAS_Z3_ENABLE
+  #define  enable_Z() do{ Z_ENABLE_WRITE( Z_ENABLE_ON); Z2_ENABLE_WRITE(Z_ENABLE_ON); Z3_ENABLE_WRITE(Z_ENABLE_ON); }while(0)
+  #define disable_Z() do{ Z_ENABLE_WRITE(!Z_ENABLE_ON); Z2_ENABLE_WRITE(!Z_ENABLE_ON); Z3_ENABLE_WRITE(!Z_ENABLE_ON); CBI(axis_known_position, Z_AXIS); }while(0)
+#elif HAS_Z2_ENABLE
   #define  enable_Z() do{ Z_ENABLE_WRITE( Z_ENABLE_ON); Z2_ENABLE_WRITE(Z_ENABLE_ON); }while(0)
   #define disable_Z() do{ Z_ENABLE_WRITE(!Z_ENABLE_ON); Z2_ENABLE_WRITE(!Z_ENABLE_ON); CBI(axis_known_position, Z_AXIS); }while(0)
 #elif HAS_Z_ENABLE

Marlin/src/config/default/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/default/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE_ENDSTOPS_ADJUSTMENT2  0
+    #define Z_TRIPLE_ENDSTOPS_ADJUSTMENT3  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/AlephObjects/TAZ4/Configuration.h

@@ -607,6 +607,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/AlephObjects/TAZ4/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/AliExpress/CL-260/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Anet/A2/Configuration.h

@@ -570,6 +570,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Anet/A2/Configuration_adv.h

@@ -1217,6 +1217,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1316,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Anet/A2plus/Configuration.h

@@ -570,6 +570,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Anet/A2plus/Configuration_adv.h

@@ -1217,6 +1217,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1316,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Anet/A6/Configuration.h

@@ -607,6 +607,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Anet/A6/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Anet/A8/Configuration.h

@@ -594,6 +594,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Anet/A8/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Azteeg/X5GT/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Azteeg/X5GT/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/BIBO/TouchX/cyclops/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/BIBO/TouchX/default/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/BQ/Hephestos/Configuration.h

@@ -575,6 +575,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/BQ/Hephestos/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/BQ/Hephestos_2/Configuration.h

@@ -588,6 +588,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/BQ/Hephestos_2/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1095,6 +1106,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1161,6 +1176,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1225,6 +1243,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1323,6 +1342,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/BQ/WITBOX/Configuration.h

@@ -575,6 +575,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/BQ/WITBOX/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Cartesio/Configuration.h

@@ -586,6 +586,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Cartesio/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Creality/CR-10/Configuration.h

@@ -597,6 +597,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Creality/CR-10/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Creality/CR-10S/Configuration.h

@@ -591,6 +591,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Creality/CR-10S/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Creality/CR-10mini/Configuration.h

@@ -606,6 +606,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Creality/CR-10mini/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Creality/CR-8/Configuration.h

@@ -597,6 +597,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Creality/CR-8/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Creality/Ender-2/Configuration.h

@@ -591,6 +591,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Creality/Ender-2/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Creality/Ender-3/Configuration.h

@@ -591,6 +591,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Creality/Ender-3/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Creality/Ender-4/Configuration.h

@@ -597,6 +597,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Creality/Ender-4/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Einstart-S/Configuration.h

@@ -599,6 +599,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Einstart-S/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Felix/Configuration.h

@@ -568,6 +568,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Felix/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Felix/DUAL/Configuration.h

@@ -568,6 +568,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/FolgerTech/i3-2020/Configuration.h

@@ -592,6 +592,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/FolgerTech/i3-2020/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Formbot/T-Rex_2+/Configuration.h

@@ -600,6 +600,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Formbot/T-Rex_2+/Configuration_adv.h

@@ -342,6 +342,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1221,6 +1232,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1319,6 +1331,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Formbot/T_Rex_3/Configuration.h

@@ -610,6 +610,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Formbot/T_Rex_3/Configuration_adv.h

@@ -342,6 +342,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1222,6 +1233,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1320,6 +1332,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Geeetech/GT2560/Configuration.h

@@ -602,6 +602,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Geeetech/I3_Pro_X-GT2560/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Geeetech/Prusa i3 Pro B/bltouch/Configuration.h

@@ -602,6 +602,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Geeetech/Prusa i3 Pro B/noprobe/Configuration.h

@@ -602,6 +602,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Geeetech/Prusa i3 Pro C/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Geeetech/Prusa i3 Pro C/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Geeetech/Prusa i3 Pro W/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Geeetech/Prusa i3 Pro W/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Infitary/i3-M508/Configuration.h

@@ -591,6 +591,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Infitary/i3-M508/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/JGAurora/A5/Configuration.h

@@ -599,6 +599,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/JGAurora/A5/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/MakerParts/Configuration.h

@@ -607,6 +607,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/MakerParts/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Malyan/M150/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Malyan/M200/Configuration.h

@@ -586,6 +586,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Malyan/M200/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Micromake/C1/basic/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Micromake/C1/enhanced/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Micromake/C1/enhanced/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Mks/Sbase/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Mks/Sbase/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1095,6 +1106,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1161,6 +1176,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1225,6 +1243,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1323,6 +1342,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/RepRapPro/Huxley/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/RepRapWorld/Megatronics/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/RigidBot/Configuration.h

@@ -583,6 +583,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/RigidBot/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/SCARA/Configuration.h

@@ -600,6 +600,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/SCARA/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/STM32F10/Configuration.h

@@ -589,6 +589,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/STM32F4/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Sanguinololu/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Sanguinololu/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/TheBorg/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/TheBorg/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/TinyBoy2/Configuration.h

@@ -638,6 +638,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/TinyBoy2/Configuration_adv.h

@@ -338,6 +338,17 @@
   #endif
 #endif
 
+//#define Z_TRIPLE_STEPPER_DRIVERS
+#if ENABLED(Z_TRIPLE_STEPPER_DRIVERS)
+  //#define Z_TRIPLE_ENDSTOPS
+  #if ENABLED(Z_TRIPLE_ENDSTOPS)
+    #define Z2_USE_ENDSTOP _XMAX_
+    #define Z3_USE_ENDSTOP _YMAX_
+    #define Z_TRIPLE2_ENDSTOPS_ADJUSTMENT  0
+    #define Z_TRIPLE3_ENDSTOPS_ADJUSTMENT  0
+  #endif
+#endif
+
 /**
  * Dual X Carriage
  *
@@ -1087,6 +1098,10 @@
   #define Z2_SENSE_RESISTOR   91
   #define Z2_MICROSTEPS       16
 
+  #define Z3_MAX_CURRENT    1000
+  #define Z3_SENSE_RESISTOR   91
+  #define Z3_MICROSTEPS       16
+
   #define E0_MAX_CURRENT    1000
   #define E0_SENSE_RESISTOR   91
   #define E0_MICROSTEPS       16
@@ -1153,6 +1168,9 @@
   #define Z2_CURRENT         800
   #define Z2_MICROSTEPS       16
 
+  #define Z3_CURRENT         800
+  #define Z3_MICROSTEPS       16
+
   #define E0_CURRENT         800
   #define E0_MICROSTEPS       16
 
@@ -1217,6 +1235,7 @@
   #define Y2_HYBRID_THRESHOLD    100
   #define Z_HYBRID_THRESHOLD       3
   #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
   #define E0_HYBRID_THRESHOLD     30
   #define E1_HYBRID_THRESHOLD     30
   #define E2_HYBRID_THRESHOLD     30
@@ -1315,6 +1334,10 @@
   #define Z2_OVERCURRENT    2000
   #define Z2_STALLCURRENT   1500
 
+  #define Z3_MICROSTEPS       16
+  #define Z3_OVERCURRENT    2000
+  #define Z3_STALLCURRENT   1500
+
   #define E0_MICROSTEPS       16
   #define E0_OVERCURRENT    2000
   #define E0_STALLCURRENT   1500

Marlin/src/config/examples/Tronxy/X1/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988

Marlin/src/config/examples/Tronxy/X3A/Configuration.h

@@ -587,6 +587,7 @@
 //#define X2_DRIVER_TYPE A4988
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988