Fix and improve software endstops (#13386)

Marlin/src/feature/I2CPositionEncoder.cpp

@@ -328,8 +328,8 @@ bool I2CPositionEncoder::test_axis() {
 
   float startCoord[NUM_AXIS] = { 0 }, endCoord[NUM_AXIS] = { 0 };
 
-  const float startPosition = soft_endstop_min[encoderAxis] + 10,
-              endPosition = soft_endstop_max[encoderAxis] - 10,
+  const float startPosition = soft_endstop[encoderAxis].min + 10,
+              endPosition = soft_endstop[encoderAxis].max - 10,
               feedrate = FLOOR(MMM_TO_MMS((encoderAxis == Z_AXIS) ? HOMING_FEEDRATE_Z : HOMING_FEEDRATE_XY));
 
   ec = false;
@@ -390,7 +390,7 @@ void I2CPositionEncoder::calibrate_steps_mm(const uint8_t iter) {
   ec = false;
 
   startDistance = 20;
-  endDistance = soft_endstop_max[encoderAxis] - 20;
+  endDistance = soft_endstop[encoderAxis].max - 20;
   travelDistance = endDistance - startDistance;
 
   LOOP_NA(i) {

Marlin/src/gcode/bedlevel/abl/G29.cpp

@@ -212,7 +212,7 @@ G29_TYPE GcodeSuite::G29() {
   #endif
 
   #if HAS_SOFTWARE_ENDSTOPS && ENABLED(PROBE_MANUALLY)
-    ABL_VAR bool enable_soft_endstops = true;
+    ABL_VAR bool saved_soft_endstops_state = true;
   #endif
 
   #if ABL_GRID
@@ -494,7 +494,7 @@ G29_TYPE GcodeSuite::G29() {
     if (seenA && g29_in_progress) {
       SERIAL_ECHOLNPGM("Manual G29 aborted");
       #if HAS_SOFTWARE_ENDSTOPS
-        soft_endstops_enabled = enable_soft_endstops;
+        soft_endstops_enabled = saved_soft_endstops_state;
       #endif
       set_bed_leveling_enabled(abl_should_enable);
       g29_in_progress = false;
@@ -519,7 +519,7 @@ G29_TYPE GcodeSuite::G29() {
     if (abl_probe_index == 0) {
       // For the initial G29 S2 save software endstop state
       #if HAS_SOFTWARE_ENDSTOPS
-        enable_soft_endstops = soft_endstops_enabled;
+        saved_soft_endstops_state = soft_endstops_enabled;
       #endif
       // Move close to the bed before the first point
       do_blocking_move_to_z(0);
@@ -617,7 +617,7 @@ G29_TYPE GcodeSuite::G29() {
 
         // Re-enable software endstops, if needed
         #if HAS_SOFTWARE_ENDSTOPS
-          soft_endstops_enabled = enable_soft_endstops;
+          soft_endstops_enabled = saved_soft_endstops_state;
         #endif
       }
 
@@ -641,7 +641,7 @@ G29_TYPE GcodeSuite::G29() {
 
         // Re-enable software endstops, if needed
         #if HAS_SOFTWARE_ENDSTOPS
-          soft_endstops_enabled = enable_soft_endstops;
+          soft_endstops_enabled = saved_soft_endstops_state;
         #endif
 
         if (!dryrun) {

Marlin/src/gcode/bedlevel/mbl/G29.cpp

@@ -59,7 +59,7 @@ void GcodeSuite::G29() {
 
   static int mbl_probe_index = -1;
   #if HAS_SOFTWARE_ENDSTOPS
-    static bool enable_soft_endstops;
+    static bool saved_soft_endstops_state;
   #endif
 
   MeshLevelingState state = (MeshLevelingState)parser.byteval('S', (int8_t)MeshReport);
@@ -99,7 +99,7 @@ void GcodeSuite::G29() {
       if (mbl_probe_index == 0) {
         #if HAS_SOFTWARE_ENDSTOPS
           // For the initial G29 S2 save software endstop state
-          enable_soft_endstops = soft_endstops_enabled;
+          saved_soft_endstops_state = soft_endstops_enabled;
         #endif
         // Move close to the bed before the first point
         do_blocking_move_to_z(0);
@@ -108,7 +108,7 @@ void GcodeSuite::G29() {
         // Save Z for the previous mesh position
         mbl.set_zigzag_z(mbl_probe_index - 1, current_position[Z_AXIS]);
         #if HAS_SOFTWARE_ENDSTOPS
-          soft_endstops_enabled = enable_soft_endstops;
+          soft_endstops_enabled = saved_soft_endstops_state;
         #endif
       }
       // If there's another point to sample, move there with optional lift.

Marlin/src/gcode/control/M211.cpp

@@ -38,13 +38,13 @@ void GcodeSuite::M211() {
   if (parser.seen('S')) soft_endstops_enabled = parser.value_bool();
   serialprint_onoff(soft_endstops_enabled);
   SERIAL_ECHOPGM(MSG_SOFT_MIN);
-  SERIAL_ECHOPAIR(    MSG_X, LOGICAL_X_POSITION(soft_endstop_min[X_AXIS]));
-  SERIAL_ECHOPAIR(" " MSG_Y, LOGICAL_Y_POSITION(soft_endstop_min[Y_AXIS]));
-  SERIAL_ECHOPAIR(" " MSG_Z, LOGICAL_Z_POSITION(soft_endstop_min[Z_AXIS]));
+  SERIAL_ECHOPAIR(    MSG_X, LOGICAL_X_POSITION(soft_endstop[X_AXIS].min));
+  SERIAL_ECHOPAIR(" " MSG_Y, LOGICAL_Y_POSITION(soft_endstop[Y_AXIS].min));
+  SERIAL_ECHOPAIR(" " MSG_Z, LOGICAL_Z_POSITION(soft_endstop[Z_AXIS].min));
   SERIAL_ECHOPGM(MSG_SOFT_MAX);
-  SERIAL_ECHOPAIR(    MSG_X, LOGICAL_X_POSITION(soft_endstop_max[X_AXIS]));
-  SERIAL_ECHOPAIR(" " MSG_Y, LOGICAL_Y_POSITION(soft_endstop_max[Y_AXIS]));
-  SERIAL_ECHOLNPAIR(" " MSG_Z, LOGICAL_Z_POSITION(soft_endstop_max[Z_AXIS]));
+  SERIAL_ECHOPAIR(    MSG_X, LOGICAL_X_POSITION(soft_endstop[X_AXIS].max));
+  SERIAL_ECHOPAIR(" " MSG_Y, LOGICAL_Y_POSITION(soft_endstop[Y_AXIS].max));
+  SERIAL_ECHOLNPAIR(" " MSG_Z, LOGICAL_Z_POSITION(soft_endstop[Z_AXIS].max));
 }
 
 #endif

Marlin/src/gcode/feature/camera/M240.cpp

@@ -127,7 +127,7 @@ void GcodeSuite::M240() {
        parser.seenval('Y') ? RAW_Y_POSITION(parser.value_linear_units()) : photo_position[Y_AXIS],
       (parser.seenval('Z') ? parser.value_linear_units() : photo_position[Z_AXIS]) + current_position[Z_AXIS]
     };
-    clamp_to_software_endstops(raw);
+    apply_motion_limits(raw);
     do_blocking_move_to(raw, fr_mm_s);
 
     #ifdef PHOTO_SWITCH_POSITION

Marlin/src/gcode/motion/G2_G3.cpp

@@ -190,7 +190,7 @@ void plan_arc(
     #endif
     raw[E_AXIS] += extruder_per_segment;
 
-    clamp_to_software_endstops(raw);
+    apply_motion_limits(raw);
 
     #if HAS_LEVELING && !PLANNER_LEVELING
       planner.apply_leveling(raw);

Marlin/src/inc/SanityCheck.h

@@ -2121,3 +2121,14 @@ static_assert(   _ARR_TEST(3,0) && _ARR_TEST(3,1) && _ARR_TEST(3,2)
     #error "Both SERVICE_NAME_3 and SERVICE_INTERVAL_3 are required."
   #endif
 #endif
+
+/**
+ * Require soft endstops for certain setups
+ */
+#if DISABLED(MIN_SOFTWARE_ENDSTOPS) || DISABLED(MAX_SOFTWARE_ENDSTOPS)
+  #if ENABLED(DUAL_X_CARRIAGE)
+    #error "DUAL_X_CARRIAGE requires both MIN_ and MAX_SOFTWARE_ENDSTOPS."
+  #elif HAS_HOTEND_OFFSET
+    #error "MIN_ and MAX_SOFTWARE_ENDSTOPS are both required with offset hotends."
+  #endif
+#endif

Marlin/src/lcd/extensible_ui/ui_api.cpp

@@ -213,26 +213,26 @@ namespace ExtUI {
       if (soft_endstops_enabled) switch (axis) {
         case X_AXIS:
           #if ENABLED(MIN_SOFTWARE_ENDSTOP_X)
-            min = soft_endstop_min[X_AXIS];
+            min = soft_endstop[X_AXIS].min;
           #endif
           #if ENABLED(MAX_SOFTWARE_ENDSTOP_X)
-            max = soft_endstop_max[X_AXIS];
+            max = soft_endstop[X_AXIS].max;
           #endif
           break;
         case Y_AXIS:
           #if ENABLED(MIN_SOFTWARE_ENDSTOP_Y)
-            min = soft_endstop_min[Y_AXIS];
+            min = soft_endstop[Y_AXIS].min;
           #endif
           #if ENABLED(MAX_SOFTWARE_ENDSTOP_Y)
-            max = soft_endstop_max[Y_AXIS];
+            max = soft_endstop[Y_AXIS].max;
           #endif
           break;
         case Z_AXIS:
           #if ENABLED(MIN_SOFTWARE_ENDSTOP_Z)
-            min = soft_endstop_min[Z_AXIS];
+            min = soft_endstop[Z_AXIS].min;
           #endif
           #if ENABLED(MAX_SOFTWARE_ENDSTOP_Z)
-            max = soft_endstop_max[Z_AXIS];
+            max = soft_endstop[Z_AXIS].max;
           #endif
         default: break;
       }

Marlin/src/lcd/menu/menu_motion.cpp

@@ -86,26 +86,26 @@ static void _lcd_move_xyz(PGM_P name, AxisEnum axis) {
       if (soft_endstops_enabled) switch (axis) {
         case X_AXIS:
           #if ENABLED(MIN_SOFTWARE_ENDSTOP_X)
-            min = soft_endstop_min[X_AXIS];
+            min = soft_endstop[X_AXIS].min;
           #endif
           #if ENABLED(MAX_SOFTWARE_ENDSTOP_X)
-            max = soft_endstop_max[X_AXIS];
+            max = soft_endstop[X_AXIS].max;
           #endif
           break;
         case Y_AXIS:
           #if ENABLED(MIN_SOFTWARE_ENDSTOP_Y)
-            min = soft_endstop_min[Y_AXIS];
+            min = soft_endstop[Y_AXIS].min;
           #endif
           #if ENABLED(MAX_SOFTWARE_ENDSTOP_Y)
-            max = soft_endstop_max[Y_AXIS];
+            max = soft_endstop[Y_AXIS].max;
           #endif
           break;
         case Z_AXIS:
           #if ENABLED(MIN_SOFTWARE_ENDSTOP_Z)
-            min = soft_endstop_min[Z_AXIS];
+            min = soft_endstop[Z_AXIS].min;
           #endif
           #if ENABLED(MAX_SOFTWARE_ENDSTOP_Z)
-            max = soft_endstop_max[Z_AXIS];
+            max = soft_endstop[Z_AXIS].max;
           #endif
         default: break;
       }

Marlin/src/module/motion.cpp

@@ -149,13 +149,13 @@ float cartes[XYZ];
   #endif
 
   #if HAS_SOFTWARE_ENDSTOPS
-    float soft_endstop_radius, soft_endstop_radius_2;
+    float delta_max_radius, delta_max_radius_2;
   #elif IS_SCARA
-    constexpr float soft_endstop_radius = SCARA_PRINTABLE_RADIUS,
-                    soft_endstop_radius_2 = sq(SCARA_PRINTABLE_RADIUS);
+    constexpr float delta_max_radius = SCARA_PRINTABLE_RADIUS,
+                    delta_max_radius_2 = sq(SCARA_PRINTABLE_RADIUS);
   #else // DELTA
-    constexpr float soft_endstop_radius = DELTA_PRINTABLE_RADIUS,
-                    soft_endstop_radius_2 = sq(DELTA_PRINTABLE_RADIUS);
+    constexpr float delta_max_radius = DELTA_PRINTABLE_RADIUS,
+                    delta_max_radius_2 = sq(DELTA_PRINTABLE_RADIUS);
   #endif
 
 #endif
@@ -460,8 +460,7 @@ void clean_up_after_endstop_or_probe_move() {
   bool soft_endstops_enabled = true;
 
   // Software Endstops are based on the configured limits.
-  float soft_endstop_min[XYZ] = { X_MIN_BED, Y_MIN_BED, Z_MIN_POS },
-        soft_endstop_max[XYZ] = { X_MAX_BED, Y_MAX_BED, Z_MAX_POS };
+  axis_limits_t soft_endstop[XYZ] = { { X_MIN_BED, X_MAX_BED }, { Y_MIN_BED, Y_MAX_BED }, { Z_MIN_POS, Z_MAX_POS } };
 
   /**
    * Software endstops can be used to monitor the open end of
@@ -487,26 +486,27 @@ void clean_up_after_endstop_or_probe_move() {
 
         if (new_tool_index != 0) {
           // T1 can move from X2_MIN_POS to X2_MAX_POS or X2 home position (whichever is larger)
-          soft_endstop_min[X_AXIS] = X2_MIN_POS;
-          soft_endstop_max[X_AXIS] = dual_max_x;
+          soft_endstop[X_AXIS].min = X2_MIN_POS;
+          soft_endstop[X_AXIS].max = dual_max_x;
         }
         else if (dxc_is_duplicating()) {
           // In Duplication Mode, T0 can move as far left as X1_MIN_POS
           // but not so far to the right that T1 would move past the end
-          soft_endstop_min[X_AXIS] = X1_MIN_POS;
-          soft_endstop_max[X_AXIS] = MIN(X1_MAX_POS, dual_max_x - duplicate_extruder_x_offset);
+          soft_endstop[X_AXIS].min = X1_MIN_POS;
+          soft_endstop[X_AXIS].max = MIN(X1_MAX_POS, dual_max_x - duplicate_extruder_x_offset);
         }
         else {
           // In other modes, T0 can move from X1_MIN_POS to X1_MAX_POS
-          soft_endstop_min[X_AXIS] = X1_MIN_POS;
-          soft_endstop_max[X_AXIS] = X1_MAX_POS;
+          soft_endstop[X_AXIS].min = X1_MIN_POS;
+          soft_endstop[X_AXIS].max = X1_MAX_POS;
         }
+
       }
 
     #elif ENABLED(DELTA)
 
-      soft_endstop_min[axis] = base_min_pos(axis);
-      soft_endstop_max[axis] = (axis == Z_AXIS ? delta_height
+      soft_endstop[axis].min = base_min_pos(axis);
+      soft_endstop[axis].max = (axis == Z_AXIS ? delta_height
       #if HAS_BED_PROBE
         - zprobe_zoffset
       #endif
@@ -516,11 +516,11 @@ void clean_up_after_endstop_or_probe_move() {
         case X_AXIS:
         case Y_AXIS:
           // Get a minimum radius for clamping
-          soft_endstop_radius = MIN(ABS(MAX(soft_endstop_min[X_AXIS], soft_endstop_min[Y_AXIS])), soft_endstop_max[X_AXIS], soft_endstop_max[Y_AXIS]);
-          soft_endstop_radius_2 = sq(soft_endstop_radius);
+          delta_max_radius = MIN(ABS(MAX(soft_endstop[X_AXIS].min, soft_endstop[Y_AXIS].min)), soft_endstop[X_AXIS].max, soft_endstop[Y_AXIS].max);
+          delta_max_radius_2 = sq(delta_max_radius);
           break;
         case Z_AXIS:
-          delta_clip_start_height = soft_endstop_max[axis] - delta_safe_distance_from_top();
+          delta_clip_start_height = soft_endstop[axis].max - delta_safe_distance_from_top();
         default: break;
       }
 
@@ -531,84 +531,81 @@ void clean_up_after_endstop_or_probe_move() {
       // retain the same physical limit when other tools are selected.
       if (old_tool_index != new_tool_index) {
         const float offs = hotend_offset[axis][new_tool_index] - hotend_offset[axis][old_tool_index];
-        soft_endstop_min[axis] += offs;
-        soft_endstop_max[axis] += offs;
+        soft_endstop[axis].min += offs;
+        soft_endstop[axis].max += offs;
       }
       else {
         const float offs = hotend_offset[axis][active_extruder];
-        soft_endstop_min[axis] = base_min_pos(axis) + offs;
-        soft_endstop_max[axis] = base_max_pos(axis) + offs;
+        soft_endstop[axis].min = base_min_pos(axis) + offs;
+        soft_endstop[axis].max = base_max_pos(axis) + offs;
       }
 
     #else
 
-      soft_endstop_min[axis] = base_min_pos(axis);
-      soft_endstop_max[axis] = base_max_pos(axis);
+      soft_endstop[axis].min = base_min_pos(axis);
+      soft_endstop[axis].max = base_max_pos(axis);
 
     #endif
 
-    #if ENABLED(DEBUG_LEVELING_FEATURE)
-      if (DEBUGGING(LEVELING)) {
-        SERIAL_ECHOPAIR("For ", axis_codes[axis]);
-        SERIAL_ECHOPAIR(" axis:\n soft_endstop_min = ", soft_endstop_min[axis]);
-        SERIAL_ECHOLNPAIR("\n soft_endstop_max = ", soft_endstop_max[axis]);
-      }
-    #endif
-  }
+  #if ENABLED(DEBUG_LEVELING_FEATURE)
+    if (DEBUGGING(LEVELING))
+      SERIAL_ECHOLNPAIR("Axis ", axis_codes[axis], " min:", soft_endstop[axis].min, " max:", soft_endstop[axis].max);
+  #endif
+}
 
-#endif // HAS_SOFTWARE_ENDSTOPS
+  /**
+   * Constrain the given coordinates to the software endstops.
+   *
+   * For DELTA/SCARA the XY constraint is based on the smallest
+   * radius within the set software endstops.
+   */
+  void apply_motion_limits(float target[XYZ]) {
 
-/**
- * Constrain the given coordinates to the software endstops.
- *
- * For DELTA/SCARA the XY constraint is based on the smallest
- * radius within the set software endstops.
- */
-void clamp_to_software_endstops(float target[XYZ]) {
+    if (!soft_endstops_enabled) return;
 
-  if (!soft_endstops_enabled) return;
+    #if IS_KINEMATIC
+
+      #if HAS_HOTEND_OFFSET && ENABLED(DELTA)
+        // The effector center position will be the target minus the hotend offset.
+        const float offx = hotend_offset[X_AXIS][active_extruder], offy = hotend_offset[Y_AXIS][active_extruder];
+      #else
+        // SCARA needs to consider the angle of the arm through the entire move, so for now use no tool offset.
+        constexpr float offx = 0, offy = 0;
+      #endif
 
-  #if IS_KINEMATIC
+      const float dist_2 = HYPOT2(target[X_AXIS] - offx, target[Y_AXIS] - offy);
+      if (dist_2 > delta_max_radius_2) {
+        const float ratio = (delta_max_radius) / SQRT(dist_2); // 200 / 300 = 0.66
+        target[X_AXIS] *= ratio;
+        target[Y_AXIS] *= ratio;
+      }
 
-    #if HAS_HOTEND_OFFSET && ENABLED(DELTA)
-      // The effector center position will be the target minus the hotend offset.
-      const float offx = hotend_offset[X_AXIS][active_extruder], offy = hotend_offset[Y_AXIS][active_extruder];
     #else
-      // SCARA needs to consider the angle of the arm through the entire move, so for now use no tool offset.
-      constexpr float offx = 0, offy = 0;
-    #endif
-
-    const float dist_2 = HYPOT2(target[X_AXIS] - offx, target[Y_AXIS] - offy);
-    if (dist_2 > soft_endstop_radius_2) {
-      const float ratio = (soft_endstop_radius) / SQRT(dist_2); // 200 / 300 = 0.66
-      target[X_AXIS] *= ratio;
-      target[Y_AXIS] *= ratio;
-    }
 
-  #else
+      #if !HAS_SOFTWARE_ENDSTOPS || ENABLED(MIN_SOFTWARE_ENDSTOP_X)
+        NOLESS(target[X_AXIS], soft_endstop[X_AXIS].min);
+      #endif
+      #if !HAS_SOFTWARE_ENDSTOPS || ENABLED(MAX_SOFTWARE_ENDSTOP_X)
+        NOMORE(target[X_AXIS], soft_endstop[X_AXIS].max);
+      #endif
+      #if !HAS_SOFTWARE_ENDSTOPS || ENABLED(MIN_SOFTWARE_ENDSTOP_Y)
+        NOLESS(target[Y_AXIS], soft_endstop[Y_AXIS].min);
+      #endif
+      #if !HAS_SOFTWARE_ENDSTOPS || ENABLED(MAX_SOFTWARE_ENDSTOP_Y)
+        NOMORE(target[Y_AXIS], soft_endstop[Y_AXIS].max);
+      #endif
 
-    #if !HAS_SOFTWARE_ENDSTOPS || ENABLED(MIN_SOFTWARE_ENDSTOP_X)
-      NOLESS(target[X_AXIS], soft_endstop_min[X_AXIS]);
     #endif
-    #if !HAS_SOFTWARE_ENDSTOPS || ENABLED(MAX_SOFTWARE_ENDSTOP_X)
-      NOMORE(target[X_AXIS], soft_endstop_max[X_AXIS]);
-    #endif
-    #if !HAS_SOFTWARE_ENDSTOPS || ENABLED(MIN_SOFTWARE_ENDSTOP_Y)
-      NOLESS(target[Y_AXIS], soft_endstop_min[Y_AXIS]);
+
+    #if !HAS_SOFTWARE_ENDSTOPS || ENABLED(MIN_SOFTWARE_ENDSTOP_Z)
+      NOLESS(target[Z_AXIS], soft_endstop[Z_AXIS].min);
     #endif
-    #if !HAS_SOFTWARE_ENDSTOPS || ENABLED(MAX_SOFTWARE_ENDSTOP_Y)
-      NOMORE(target[Y_AXIS], soft_endstop_max[Y_AXIS]);
+    #if !HAS_SOFTWARE_ENDSTOPS || ENABLED(MAX_SOFTWARE_ENDSTOP_Z)
+      NOMORE(target[Z_AXIS], soft_endstop[Z_AXIS].max);
     #endif
+  }
 
-  #endif
-
-  #if !HAS_SOFTWARE_ENDSTOPS || ENABLED(MIN_SOFTWARE_ENDSTOP_Z)
-    NOLESS(target[Z_AXIS], soft_endstop_min[Z_AXIS]);
-  #endif
-  #if !HAS_SOFTWARE_ENDSTOPS || ENABLED(MAX_SOFTWARE_ENDSTOP_Z)
-    NOMORE(target[Z_AXIS], soft_endstop_max[Z_AXIS]);
-  #endif
-}
+#endif // HAS_SOFTWARE_ENDSTOPS
 
 #if !UBL_SEGMENTED
 #if IS_KINEMATIC
@@ -995,7 +992,7 @@ void clamp_to_software_endstops(float target[XYZ]) {
  * before calling or cold/lengthy extrusion may get missed.
  */
 void prepare_move_to_destination() {
-  clamp_to_software_endstops(destination);
+  apply_motion_limits(destination);
 
   #if ENABLED(PREVENT_COLD_EXTRUSION) || ENABLED(PREVENT_LENGTHY_EXTRUDE)
 

Marlin/src/module/motion.h

@@ -118,23 +118,23 @@ XYZ_DEFS(signed char, home_dir, HOME_DIR);
   constexpr float hotend_offset[XYZ][HOTENDS] = { { 0 }, { 0 }, { 0 } };
 #endif
 
+typedef struct { float min, max; } axis_limits_t;
 #if HAS_SOFTWARE_ENDSTOPS
   extern bool soft_endstops_enabled;
-  extern float soft_endstop_min[XYZ], soft_endstop_max[XYZ];
+  extern axis_limits_t soft_endstop[XYZ];
+  void apply_motion_limits(float target[XYZ]);
   void update_software_endstops(const AxisEnum axis
     #if HAS_HOTEND_OFFSET
       , const uint8_t old_tool_index=0, const uint8_t new_tool_index=0
     #endif
   );
 #else
-  constexpr bool soft_endstops_enabled = true;
-  constexpr float soft_endstop_min[XYZ] = { X_MIN_POS, Y_MIN_POS, Z_MIN_POS },
-                  soft_endstop_max[XYZ] = { X_MAX_POS, Y_MAX_POS, Z_MAX_POS };
+  constexpr bool soft_endstops_enabled = false;
+  //constexpr axis_limits_t soft_endstop[XYZ] = { { X_MIN_POS, X_MAX_POS }, { Y_MIN_POS, Y_MAX_POS }, { Z_MIN_POS, Z_MAX_POS } };
+  #define apply_motion_limits(V)    NOOP
   #define update_software_endstops(...) NOOP
 #endif
 
-void clamp_to_software_endstops(float target[XYZ]);
-
 void report_current_position();
 
 inline void set_current_from_destination() { COPY(current_position, destination); }

Marlin/src/module/planner_bezier.cpp

@@ -188,7 +188,7 @@ void cubic_b_spline(const float position[NUM_AXIS], const float target[NUM_AXIS]
     // not linear in the distance.
     bez_target[Z_AXIS] = interp(position[Z_AXIS], target[Z_AXIS], t);
     bez_target[E_AXIS] = interp(position[E_AXIS], target[E_AXIS], t);
-    clamp_to_software_endstops(bez_target);
+    apply_motion_limits(bez_target);
 
     #if HAS_LEVELING && !PLANNER_LEVELING
       float pos[XYZE] = { bez_target[X_AXIS], bez_target[Y_AXIS], bez_target[Z_AXIS], bez_target[E_AXIS] };

Marlin/src/module/tool_change.cpp

@@ -739,7 +739,7 @@ void tool_change(const uint8_t tmp_extruder, const float fr_mm_s/*=0.0*/, bool n
           #endif
           current_position[Z_AXIS] += toolchange_settings.z_raise;
           #if HAS_SOFTWARE_ENDSTOPS
-            NOMORE(current_position[Z_AXIS], soft_endstop_max[Z_AXIS]);
+            NOMORE(current_position[Z_AXIS], soft_endstop[Z_AXIS].max);
           #endif
           planner.buffer_line(current_position, feedrate_mm_s, active_extruder);
         #endif
@@ -771,7 +771,7 @@ void tool_change(const uint8_t tmp_extruder, const float fr_mm_s/*=0.0*/, bool n
         // SWITCHING_NOZZLE_TWO_SERVOS, as both nozzles will lift instead.
         current_position[Z_AXIS] += MAX(-zdiff, 0.0) + toolchange_settings.z_raise;
         #if HAS_SOFTWARE_ENDSTOPS
-          NOMORE(current_position[Z_AXIS], soft_endstop_max[Z_AXIS]);
+          NOMORE(current_position[Z_AXIS], soft_endstop[Z_AXIS].max);
         #endif
         if (!no_move) fast_line_to_current(Z_AXIS);
         move_nozzle_servo(tmp_extruder);
@@ -840,7 +840,7 @@ void tool_change(const uint8_t tmp_extruder, const float fr_mm_s/*=0.0*/, bool n
         #endif
 
         // Prevent a move outside physical bounds
-        clamp_to_software_endstops(destination);
+        apply_motion_limits(destination);
 
         // Move back to the original (or tweaked) position
         do_blocking_move_to(destination);