printer.cfg modified - 04.10.2026 - 00:23:10

printer_data/config/printer.cfg

@@ -672,7 +672,11 @@ gcode:
     SET_GCODE_VARIABLE MACRO=PRINT_START VARIABLE=thermal_z_comp VALUE={thermal_z_comp}
     { action_respond_info("PRINT_START: hot-nozzle Z compensation +%.3f mm for %d C" % (thermal_z_comp, hotendtemp)) }
     STATUS_CLEANING
+    {% if params.PRINT_MIN is defined and params.PRINT_MAX is defined %}
+        LINE_PURGE PRINT_MIN={params.PRINT_MIN} PRINT_MAX={params.PRINT_MAX}
+    {% else %}
         LINE_PURGE
+    {% endif %}
     STATUS_PRINTING
 
 [gcode_macro TOUCH_SAVE_Z_OFFSET]
@@ -714,16 +718,18 @@ gcode:
 
 [gcode_macro LINE_PURGE]
 description: Adaptive purge outside the print; safely skips when no free edge exists
-# Object polygons from the slicer do not include brim or skirt. 15 mm covers the
+# Preferred bounds: PRINT_MIN/PRINT_MAX from Orca (first_layer_print_min/max),
-# Orca profile (5 mm brim, skirt 2 mm away with up to 5 loops = ~9.5 mm) plus
+# which already include brim and skirt, kept footprint_clearance away.
-# the squished purge line width. Override per job with CLEARANCE=<mm>.
+# Fallback: object polygons, which exclude brim and skirt; observed Orca jobs put
-variable_clearance: 15.0
+# the skirt up to ~12 mm outside them, so polygon_clearance is larger.
+variable_footprint_clearance: 5.0
+variable_polygon_clearance: 15.0
 gcode:
     {% set objects = printer.exclude_object.objects %}
     {% set points = objects | map(attribute='polygon') | sum(start=[]) %}
+    {% set use_footprint = params.PRINT_MIN is defined and params.PRINT_MAX is defined %}
     {% set line_length = 100.0 %}
     {% set wipe_length = 5.0 %}
-    {% set clearance = params.CLEARANCE|default(clearance)|float %}
     {% set x_offset = printer.configfile.settings.cartographer.x_offset|float %}
     {% set y_offset = printer.configfile.settings.cartographer.y_offset|float %}
     # Both nozzle and protruding Cartographer must remain at least 5 mm inside
@@ -737,15 +743,26 @@ gcode:
         { action_raise_error("LINE_PURGE requires homed X, Y and Z") }
     {% elif not printer.extruder.can_extrude %}
         { action_raise_error("LINE_PURGE requires a hot extruder") }
-    {% elif points|length == 0 %}
+    {% elif not use_footprint and points|length == 0 %}
-        { action_respond_info("LINE_PURGE skipped: slicer supplied no object polygons") }
+        { action_respond_info("LINE_PURGE skipped: slicer supplied neither PRINT_MIN/PRINT_MAX nor object polygons") }
     {% elif safe_x_max - safe_x_min < line_length + wipe_length or safe_y_max - safe_y_min < line_length + wipe_length %}
         { action_respond_info("LINE_PURGE skipped: configured safe area is too small") }
     {% else %}
+        {% if use_footprint %}
+            {% set source = "first-layer footprint (brim/skirt included)" %}
+            {% set clearance = params.CLEARANCE|default(footprint_clearance)|float %}
+            {% set object_x_min = params.PRINT_MIN.split(',')[0]|float %}
+            {% set object_y_min = params.PRINT_MIN.split(',')[1]|float %}
+            {% set object_x_max = params.PRINT_MAX.split(',')[0]|float %}
+            {% set object_y_max = params.PRINT_MAX.split(',')[1]|float %}
+        {% else %}
+            {% set source = "object polygons (brim/skirt not included)" %}
+            {% set clearance = params.CLEARANCE|default(polygon_clearance)|float %}
             {% set object_x_min = points | map(attribute=0) | min | float %}
             {% set object_x_max = points | map(attribute=0) | max | float %}
             {% set object_y_min = points | map(attribute=1) | min | float %}
             {% set object_y_max = points | map(attribute=1) | max | float %}
+        {% endif %}
         {% set front_gap = object_y_min - safe_y_min %}
         {% set left_gap = object_x_min - safe_x_min %}
         {% set right_gap = safe_x_max - object_x_max %}
@@ -791,7 +808,7 @@ gcode:
         {% endif %}
         G0 Z2 F600
         RESTORE_GCODE_STATE NAME=LINE_PURGE_STATE MOVE=0
-        { action_respond_info("LINE_PURGE used the %s free edge with %.1f mm object clearance" % (edge, clearance)) }
+        { action_respond_info("LINE_PURGE used the %s free edge, %.1f mm from the %s" % (edge, clearance, source)) }
         {% endif %}
     {% endif %}