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A Purge Filament Macro

{tag> gcode setup articles}

;
; purge filament
;

G90 ; absolute positioning mode
G28 ; home
G1 Z10 F300 ; raise Z by 10 to be safe
G1 X67.5 Y0 F6000 ; move to start of purge line
G1 Z0 F300 ; drop nozzle to plate surface
M109 S220 ; heat extruder and wait
G92 E0 ; reset extruder
G1 X67.5 Y0 Z0.4 F300 ; move to start xyz position
G1 X167.5 E80 F400 ; draw the first line
G0 Y2 F120
G1 X67.5 E60 F400 ; draw the second line
G0 Y4 F120
G1 X167.5 E30 F400 ; draw a third line
G1 Z10 F300 ; raise Z by 10 to be safe
G92 E0 ; reset extruder
G28