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extruder: Add support for reversing the direction of extruder stepper movement

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Extend SET_EXTRUDER_ROTATION_DISTANCE to support reversing the
direction of extruder movement.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2022-01-29 19:13:31 -05:00
parent 189188e3ca
commit 9ec9742484
9 changed files with 60 additions and 19 deletions
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13
klippy/kinematics/extruder.py
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@@ -91,13 +91,24 @@ class ExtruderStepper:
gcmd.respond_info(msg, log=False)
cmd_SET_E_ROTATION_DISTANCE_help = "Set extruder rotation distance"
def cmd_SET_E_ROTATION_DISTANCE(self, gcmd):
rotation_dist = gcmd.get_float('DISTANCE', None, above=0.)
rotation_dist = gcmd.get_float('DISTANCE', None)
if rotation_dist is not None:
if not rotation_dist:
raise gcmd.error("Rotation distance can not be zero")
invert_dir, orig_invert_dir = self.stepper.get_dir_inverted()
next_invert_dir = orig_invert_dir
if rotation_dist < 0.:
next_invert_dir = not orig_invert_dir
rotation_dist = -rotation_dist
toolhead = self.printer.lookup_object('toolhead')
toolhead.flush_step_generation()
self.stepper.set_rotation_distance(rotation_dist)
self.stepper.set_dir_inverted(next_invert_dir)
else:
rotation_dist, spr = self.stepper.get_rotation_distance()
invert_dir, orig_invert_dir = self.stepper.get_dir_inverted()
if invert_dir != orig_invert_dir:
rotation_dist = -rotation_dist
gcmd.respond_info("Extruder '%s' rotation distance set to %0.6f"
% (self.name, rotation_dist))
cmd_SET_E_STEP_DISTANCE_help = "Set extruder step distance"