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Only unretract/retract when necessary for priming

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Otherwise this is quite a useless move and would only cause blobs on the print.

Found during work on CURA-8522.
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Ghostkeeper 2021-11-05 17:27:46 +01:00
parent 67d76e3af8
commit 74ff28cbea
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GPG key ID: D2A8871EE34EC59A
1 changed files with 8 additions and 9 deletions
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17
plugins/PostProcessingPlugin/scripts/PauseAtHeight.py
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@ -489,18 +489,17 @@ class PauseAtHeight(Script):
# Set extruder resume temperature
prepend_gcode += self.putValue(M = 109, S = int(target_temperature.get(current_t, 0))) + " ; resume temperature\n"
# Push the filament back,
if retraction_amount != 0:
prepend_gcode += self.putValue(G = 1, E = retraction_amount, F = retraction_speed * 60) + "\n"
if extrude_amount != 0: # Need to prime after the pause.
# Push the filament back.
if retraction_amount != 0:
prepend_gcode += self.putValue(G = 1, E = retraction_amount, F = retraction_speed * 60) + "\n"
# Optionally extrude material
if extrude_amount != 0:
# Prime the material.
prepend_gcode += self.putValue(G = 1, E = extrude_amount, F = extrude_speed * 60) + "; Extra extrude after the unpause\n"
# and retract again, the properly primes the nozzle
# when changing filament.
if retraction_amount != 0:
prepend_gcode += self.putValue(G = 1, E = -retraction_amount, F = retraction_speed * 60) + "\n"
# And retract again to make the movements back to the starting position.
if retraction_amount != 0:
prepend_gcode += self.putValue(G = 1, E = -retraction_amount, F = retraction_speed * 60) + "\n"
# Move the head back
if park_enabled: