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Preserve extruder-only moves in post stretch script

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This commit is contained in:
Jeff Rogers 2019-07-18 16:52:59 -07:00
parent a6790e7bb2
commit 5ee31a1983
1 changed files with 19 additions and 2 deletions
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21
plugins/PostProcessingPlugin/scripts/Stretch.py
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@ -128,9 +128,26 @@ class Stretcher():
onestep = GCodeStep(0, in_relative_movement)
onestep.copyPosFrom(current)
elif _getValue(line, "G") == 1:
last_x = current.step_x
last_y = current.step_y
last_z = current.step_z
last_e = current.step_e
current.readStep(line)
onestep = GCodeStep(1, in_relative_movement)
onestep.copyPosFrom(current)
if (current.step_x == last_x and current.step_y == last_y and
current.step_z == last_z and current.step_e != last_e
):
# It's an extruder only move. Preserve it rather than process it as an
# extruded move. Otherwise, the stretched output might contain slight
# motion in X and Y in addition to E. This can cause problems with
# firmwares that implement pressure advance.
onestep = GCodeStep(-1, in_relative_movement)
onestep.copyPosFrom(current)
# Rather than copy the original line, write a new one with consistent
# extruder coordinates
onestep.comment = "G1 F{} E{}".format(onestep.step_f, onestep.step_e)
else:
onestep = GCodeStep(1, in_relative_movement)
onestep.copyPosFrom(current)
# end of relative movement
elif _getValue(line, "G") == 90: