Merge pull request #644 from tehniemer/prime-line-wipe

Prime line wipe

Author: Frix-x

macros/helpers/prime_line.cfg

@@ -7,7 +7,9 @@ gcode:
     {% set prime_line_height = params.LINE_HEIGHT|default(printer["gcode_macro _USER_VARIABLES"].prime_line_height)|default(0.6)|float %}
     {% set prime_line_adaptive = params.ADAPTIVE_MODE|default(1)|int %}
     {% set prime_line_margin = params.LINE_MARGIN|default(printer["gcode_macro _USER_VARIABLES"].prime_line_margin)|default(5.0)|float %} # Used only in adaptive mode
-    
+    {% set prime_line_wipe = printer["gcode_macro _USER_VARIABLES"].prime_line_wipe|default(False) %}
+    {% set prime_line_wipe_length = prime_line_length * 0.8 %}
+
     # If the SIZE parameter is defined and not a dummy placeholder, we use it to do the adaptive bed mesh logic
     {% set coordinatesFound = false %}
     {% if params.SIZE is defined and params.SIZE != "0_0_0_0" %}
@@ -116,8 +118,14 @@ gcode:
     G92 E0
     {% if prime_line_direction == "X" %}
         G1 X{prime_line_x + prime_line_way*prime_line_length} E{prime_line_purge_distance} F{speed}
+        {% if prime_line_wipe %}
+            G0 X{prime_line_x + prime_line_way*prime_line_wipe_length} F{St}
+        {% endif %}
     {% elif prime_line_direction == "Y" %}
         G1 Y{prime_line_y + prime_line_way*prime_line_length} E{prime_line_purge_distance} F{speed}
+        {% if prime_line_wipe %}
+            G0 Y{prime_line_y + prime_line_way*prime_line_wipe_length} F{St}
+        {% endif %}        
     {% else %}
         { action_respond_error("Prime line direction is not valid. Choose either X or Y in the variables.cfg file!") }
     {% endif %}

user_templates/variables.cfg

@@ -59,6 +59,7 @@ variable_prime_line_purge_distance: 30 # length of filament to purge (in mm)
 variable_prime_line_flowrate: 10 # mm3/s used for the prime line
 variable_prime_line_height: 0.6 # mm, used for actual cross section computation
 variable_prime_line_margin: 5  # distance of purge line from fl_size rectangle
+variable_prime_line_wipe: False # enable a wipe of the nozzle after completing the prime line
 
 ## Park position used when pause, end_print, etc...
 variable_park_position_xy: -1, -1