diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp index e32d964aa..0c7e97d01 100644 --- a/Marlin/Marlin_main.cpp +++ b/Marlin/Marlin_main.cpp @@ -2228,10 +2228,15 @@ static void do_homing_move(AxisEnum axis, float where, float fr_mm_s = 0.0) { #define HOMEAXIS(LETTER) homeaxis(LETTER##_AXIS) static void homeaxis(AxisEnum axis) { - #define CAN_HOME(A) \ - (axis == A##_AXIS && ((A##_MIN_PIN > -1 && A##_HOME_DIR < 0) || (A##_MAX_PIN > -1 && A##_HOME_DIR > 0))) - if (!CAN_HOME(X) && !CAN_HOME(Y) && !CAN_HOME(Z)) return; + #if IS_SCARA + // Only Z homing (with probe) is permitted + if (axis != Z_AXIS) { BUZZ(100, 880); return; } + #else + #define CAN_HOME(A) \ + (axis == A##_AXIS && ((A##_MIN_PIN > -1 && A##_HOME_DIR < 0) || (A##_MAX_PIN > -1 && A##_HOME_DIR > 0))) + if (!CAN_HOME(X) && !CAN_HOME(Y) && !CAN_HOME(Z)) return; + #endif #if ENABLED(DEBUG_LEVELING_FEATURE) if (DEBUGGING(LEVELING)) { @@ -2294,10 +2299,16 @@ static void homeaxis(AxisEnum axis) { } // Z_AXIS #endif - // Delta has already moved all three towers up in G28 - // so here it re-homes each tower in turn. - // Delta homing treats the axes as normal linear axes. - #if ENABLED(DELTA) + #if IS_SCARA + + set_axis_is_at_home(axis); + SYNC_PLAN_POSITION_KINEMATIC(); + + #elif ENABLED(DELTA) + + // Delta has already moved all three towers up in G28 + // so here it re-homes each tower in turn. + // Delta homing treats the axes as normal linear axes. // retrace by the amount specified in endstop_adj if (endstop_adj[axis] * Z_HOME_DIR < 0) {