make the dual z-endstop optional (PR#2277)

it's disabled by default

Marlin/Configuration_adv.h

@@ -144,12 +144,13 @@
   // Play a little bit with small adjustments (0.5mm) and check the behaviour.
   // The M119 (endstops report) will start reporting the Z2 Endstop as well.
 
-  #define Z_DUAL_ENDSTOPS
+  #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
+  #define Z2_DIR_PIN E2_DIR_PIN
+  #define Z2_ENABLE_PIN E2_ENABLE_PIN
+
+  // #define Z_DUAL_ENDSTOPS
 
   #ifdef Z_DUAL_ENDSTOPS
-    #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
-    #define Z2_DIR_PIN E2_DIR_PIN
-    #define Z2_ENABLE_PIN E2_ENABLE_PIN
     #define Z2_MAX_PIN 36                     //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
     const bool Z2_MAX_ENDSTOP_INVERTING = false;
     #define DISABLE_XMAX_ENDSTOP              //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.

Marlin/configurator/config/Configuration_adv.h

@@ -139,12 +139,13 @@
   // Play a little bit with small adjustments (0.5mm) and check the behaviour.
   // The M119 (endstops report) will start reporting the Z2 Endstop as well.
 
-  #define Z_DUAL_ENDSTOPS
+  #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
+  #define Z2_DIR_PIN E2_DIR_PIN
+  #define Z2_ENABLE_PIN E2_ENABLE_PIN
+
+  // #define Z_DUAL_ENDSTOPS
 
   #ifdef Z_DUAL_ENDSTOPS
-    #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
-    #define Z2_DIR_PIN E2_DIR_PIN
-    #define Z2_ENABLE_PIN E2_ENABLE_PIN
     #define Z2_MAX_PIN 36                     //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
     const bool Z2_MAX_ENDSTOP_INVERTING = false;
     #define DISABLE_XMAX_ENDSTOP              //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.

Marlin/example_configurations/Felix/Configuration_adv.h

@@ -152,12 +152,13 @@
   // Play a little bit with small adjustments (0.5mm) and check the behaviour.
   // The M119 (endstops report) will start reporting the Z2 Endstop as well.
 
-  #define Z_DUAL_ENDSTOPS
+  #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
+  #define Z2_DIR_PIN E2_DIR_PIN
+  #define Z2_ENABLE_PIN E2_ENABLE_PIN
+
+  // #define Z_DUAL_ENDSTOPS
 
   #ifdef Z_DUAL_ENDSTOPS
-    #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
-    #define Z2_DIR_PIN E2_DIR_PIN
-    #define Z2_ENABLE_PIN E2_ENABLE_PIN
     #define Z2_MAX_PIN 36                     //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
     const bool Z2_MAX_ENDSTOP_INVERTING = false;
     #define DISABLE_XMAX_ENDSTOP              //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.

Marlin/example_configurations/Hephestos/Configuration_adv.h

@@ -152,12 +152,13 @@
   // Play a little bit with small adjustments (0.5mm) and check the behaviour.
   // The M119 (endstops report) will start reporting the Z2 Endstop as well.
 
-  #define Z_DUAL_ENDSTOPS
+  #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
+  #define Z2_DIR_PIN E2_DIR_PIN
+  #define Z2_ENABLE_PIN E2_ENABLE_PIN
+
+  // #define Z_DUAL_ENDSTOPS
 
   #ifdef Z_DUAL_ENDSTOPS
-    #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
-    #define Z2_DIR_PIN E2_DIR_PIN
-    #define Z2_ENABLE_PIN E2_ENABLE_PIN
     #define Z2_MAX_PIN 36                     //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
     const bool Z2_MAX_ENDSTOP_INVERTING = false;
     #define DISABLE_XMAX_ENDSTOP              //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.

Marlin/example_configurations/K8200/Configuration_adv.h

@@ -152,12 +152,13 @@
   // Play a little bit with small adjustments (0.5mm) and check the behaviour.
   // The M119 (endstops report) will start reporting the Z2 Endstop as well.
 
-  #define Z_DUAL_ENDSTOPS
+  #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
+  #define Z2_DIR_PIN E2_DIR_PIN
+  #define Z2_ENABLE_PIN E2_ENABLE_PIN
+
+  // #define Z_DUAL_ENDSTOPS
 
   #ifdef Z_DUAL_ENDSTOPS
-    #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
-    #define Z2_DIR_PIN E2_DIR_PIN
-    #define Z2_ENABLE_PIN E2_ENABLE_PIN
     #define Z2_MAX_PIN 36                     //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
     const bool Z2_MAX_ENDSTOP_INVERTING = false;
     #define DISABLE_XMAX_ENDSTOP              //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.

Marlin/example_configurations/SCARA/Configuration_adv.h

@@ -152,12 +152,13 @@
   // Play a little bit with small adjustments (0.5mm) and check the behaviour.
   // The M119 (endstops report) will start reporting the Z2 Endstop as well.
 
-  #define Z_DUAL_ENDSTOPS
+  #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
+  #define Z2_DIR_PIN E2_DIR_PIN
+  #define Z2_ENABLE_PIN E2_ENABLE_PIN
+
+  // #define Z_DUAL_ENDSTOPS
 
   #ifdef Z_DUAL_ENDSTOPS
-    #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
-    #define Z2_DIR_PIN E2_DIR_PIN
-    #define Z2_ENABLE_PIN E2_ENABLE_PIN
     #define Z2_MAX_PIN 36                     //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
     const bool Z2_MAX_ENDSTOP_INVERTING = false;
     #define DISABLE_XMAX_ENDSTOP              //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.

Marlin/example_configurations/WITBOX/Configuration_adv.h

@@ -152,12 +152,13 @@
   // Play a little bit with small adjustments (0.5mm) and check the behaviour.
   // The M119 (endstops report) will start reporting the Z2 Endstop as well.
 
-  #define Z_DUAL_ENDSTOPS
+  #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
+  #define Z2_DIR_PIN E2_DIR_PIN
+  #define Z2_ENABLE_PIN E2_ENABLE_PIN
+
+  // #define Z_DUAL_ENDSTOPS
 
   #ifdef Z_DUAL_ENDSTOPS
-    #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
-    #define Z2_DIR_PIN E2_DIR_PIN
-    #define Z2_ENABLE_PIN E2_ENABLE_PIN
     #define Z2_MAX_PIN 36                     //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
     const bool Z2_MAX_ENDSTOP_INVERTING = false;
     #define DISABLE_XMAX_ENDSTOP              //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.

Marlin/example_configurations/delta/biv2.5/Configuration_adv.h

@@ -152,12 +152,13 @@
   // Play a little bit with small adjustments (0.5mm) and check the behaviour.
   // The M119 (endstops report) will start reporting the Z2 Endstop as well.
 
-  #define Z_DUAL_ENDSTOPS
+  #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
+  #define Z2_DIR_PIN E2_DIR_PIN
+  #define Z2_ENABLE_PIN E2_ENABLE_PIN
+
+  // #define Z_DUAL_ENDSTOPS
 
   #ifdef Z_DUAL_ENDSTOPS
-    #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
-    #define Z2_DIR_PIN E2_DIR_PIN
-    #define Z2_ENABLE_PIN E2_ENABLE_PIN
     #define Z2_MAX_PIN 36                     //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
     const bool Z2_MAX_ENDSTOP_INVERTING = false;
     #define DISABLE_XMAX_ENDSTOP              //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.

Marlin/example_configurations/delta/generic/Configuration_adv.h

@@ -152,12 +152,13 @@
   // Play a little bit with small adjustments (0.5mm) and check the behaviour.
   // The M119 (endstops report) will start reporting the Z2 Endstop as well.
 
-  #define Z_DUAL_ENDSTOPS
+  #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
+  #define Z2_DIR_PIN E2_DIR_PIN
+  #define Z2_ENABLE_PIN E2_ENABLE_PIN
+
+  // #define Z_DUAL_ENDSTOPS
 
   #ifdef Z_DUAL_ENDSTOPS
-    #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
-    #define Z2_DIR_PIN E2_DIR_PIN
-    #define Z2_ENABLE_PIN E2_ENABLE_PIN
     #define Z2_MAX_PIN 36                     //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
     const bool Z2_MAX_ENDSTOP_INVERTING = false;
     #define DISABLE_XMAX_ENDSTOP              //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

@@ -152,12 +152,13 @@
   // Play a little bit with small adjustments (0.5mm) and check the behaviour.
   // The M119 (endstops report) will start reporting the Z2 Endstop as well.
 
-  #define Z_DUAL_ENDSTOPS
+  #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
+  #define Z2_DIR_PIN E2_DIR_PIN
+  #define Z2_ENABLE_PIN E2_ENABLE_PIN
+
+  // #define Z_DUAL_ENDSTOPS
 
   #ifdef Z_DUAL_ENDSTOPS
-    #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
-    #define Z2_DIR_PIN E2_DIR_PIN
-    #define Z2_ENABLE_PIN E2_ENABLE_PIN
     #define Z2_MAX_PIN 36                     //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
     const bool Z2_MAX_ENDSTOP_INVERTING = false;
     #define DISABLE_XMAX_ENDSTOP              //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.

Marlin/example_configurations/makibox/Configuration_adv.h

@@ -152,12 +152,13 @@
   // Play a little bit with small adjustments (0.5mm) and check the behaviour.
   // The M119 (endstops report) will start reporting the Z2 Endstop as well.
 
-  #define Z_DUAL_ENDSTOPS
+  #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
+  #define Z2_DIR_PIN E2_DIR_PIN
+  #define Z2_ENABLE_PIN E2_ENABLE_PIN
+
+  // #define Z_DUAL_ENDSTOPS
 
   #ifdef Z_DUAL_ENDSTOPS
-    #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
-    #define Z2_DIR_PIN E2_DIR_PIN
-    #define Z2_ENABLE_PIN E2_ENABLE_PIN
     #define Z2_MAX_PIN 36                     //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
     const bool Z2_MAX_ENDSTOP_INVERTING = false;
     #define DISABLE_XMAX_ENDSTOP              //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

@@ -152,12 +152,13 @@
   // Play a little bit with small adjustments (0.5mm) and check the behaviour.
   // The M119 (endstops report) will start reporting the Z2 Endstop as well.
 
-  #define Z_DUAL_ENDSTOPS
+  #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
+  #define Z2_DIR_PIN E2_DIR_PIN
+  #define Z2_ENABLE_PIN E2_ENABLE_PIN
+
+  // #define Z_DUAL_ENDSTOPS
 
   #ifdef Z_DUAL_ENDSTOPS
-    #define Z2_STEP_PIN E2_STEP_PIN           // Stepper to be used to Z2 axis.
-    #define Z2_DIR_PIN E2_DIR_PIN
-    #define Z2_ENABLE_PIN E2_ENABLE_PIN
     #define Z2_MAX_PIN 36                     //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
     const bool Z2_MAX_ENDSTOP_INVERTING = false;
     #define DISABLE_XMAX_ENDSTOP              //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.