Add support for skew profiles

meta-opencentauri/recipes-apps/klipper/files/macros.cfg

@@ -116,6 +116,7 @@ gcode:
         LINE_PURGE
     {% endif %}
     SET_TEMPERATURE_FAN_TARGET temperature_fan=mainboard TARGET=30
+    LOAD_SKEW_IF_EXISTS
     SET_DISPLAY_TEXT ; Clear display text after print start
     G90
 
@@ -148,6 +149,8 @@ gcode:
     {% set toolhead_led = settings.toolhead_led|default('false')|lower == 'true' %}
     {% set e_mintemp  = printer.configfile.settings['extruder'].min_extrude_temp %}
     {% set sensor = printer['filament_switch_sensor filament_sensor'] if 'filament_switch_sensor filament_sensor' in printer else printer["filament_switch_sensor extruder_tool_start"] %}
+
+    CLEAR_SKEW_IF_EXISTS
 
     {% if printer.toolhead.homed_axes|lower == "xyz" %}
         G91
@@ -219,7 +222,10 @@ gcode:
     {% endif %}  
 
     SET_DISPLAY_TEXT MSG="Pausing"
-
+
+	#while paused, we may CUT_FILAMENT, MOVE_TO_TRAY, rehome, or any other number of near boundry movements
+	CLEAR_SKEW_IF_EXISTS
+
     _SAVE_FAN_STATE
     PAUSE_BASE
     TURN_OFF_FANS
@@ -286,6 +292,9 @@ gcode:
         M400
         SAVE_GCODE_STATE NAME=PAUSE_STATE
     {% endif %}
+
+	# reload SKEW which was cleared at start of PAUSE.  If the skew was purposfully or accidentally loaded by some other mechanism, there is no harm in doing it again
+	LOAD_SKEW_IF_EXISTS
 
     RESUME_BASE