diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp index b8ab94fa8..355c8a6a3 100644 --- a/Marlin/Marlin_main.cpp +++ b/Marlin/Marlin_main.cpp @@ -1283,28 +1283,32 @@ void refresh_cmd_timeout(void) feedrate=retract_feedrate*60; retracted[active_extruder]=true; prepare_move(); - current_position[Z_AXIS]-=retract_zlift; + if(retract_zlift > 0.01) { + current_position[Z_AXIS]-=retract_zlift; #ifdef DELTA - calculate_delta(current_position); // change cartesian kinematic to delta kinematic; - plan_set_position(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], current_position[E_AXIS]); + calculate_delta(current_position); // change cartesian kinematic to delta kinematic; + plan_set_position(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], current_position[E_AXIS]); #else - plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]); + plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]); #endif - prepare_move(); + prepare_move(); + } feedrate = oldFeedrate; } else if(!retracting && retracted[active_extruder]) { destination[X_AXIS]=current_position[X_AXIS]; destination[Y_AXIS]=current_position[Y_AXIS]; destination[Z_AXIS]=current_position[Z_AXIS]; destination[E_AXIS]=current_position[E_AXIS]; - current_position[Z_AXIS]+=retract_zlift; + if(retract_zlift > 0.01) { + current_position[Z_AXIS]+=retract_zlift; #ifdef DELTA - calculate_delta(current_position); // change cartesian kinematic to delta kinematic; - plan_set_position(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], current_position[E_AXIS]); + calculate_delta(current_position); // change cartesian kinematic to delta kinematic; + plan_set_position(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], current_position[E_AXIS]); #else - plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]); + plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]); #endif - //prepare_move(); + //prepare_move(); + } if (swapretract) { current_position[E_AXIS]-=(retract_length_swap+retract_recover_length_swap)/volumetric_multiplier[active_extruder]; } else {