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extruder: Add a SET_EXTRUDER_ROTATION_DISTANCE command

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Support altering the extruder distance using the higher-level
rotation_distance.  This is in preparation for removal of the
SET_EXTRUDER_STEP_DISTANCE command.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2022-01-29 14:13:26 -05:00
parent 6d7c03365a
commit 189188e3ca
5 changed files with 55 additions and 23 deletions
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17
docs/G-Codes.md
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@ -300,14 +300,23 @@ extruders this command is used to change the active extruder.
parameters. If EXTRUDER is not specified, it defaults to the active
extruder.
#### SET_EXTRUDER_ROTATION_DISTANCE
`SET_EXTRUDER_ROTATION_DISTANCE EXTRUDER=<config_name>
[DISTANCE=<distance>]`: Set a new value for the provided extruder's
"rotation distance". Value is not retained on Klipper reset. Use with
caution as small changes can result in excessive pressure between
extruder and hot end. Do proper calibration with filament before use.
If 'DISTANCE' value is not included command will return current
rotation distance.
#### SET_EXTRUDER_STEP_DISTANCE
`SET_EXTRUDER_STEP_DISTANCE [EXTRUDER=<config_name>]
`SET_EXTRUDER_STEP_DISTANCE EXTRUDER=<config_name>
[DISTANCE=<distance>]`: Set a new value for the provided extruder's
"step distance". The "step distance" is
`rotation_distance/(full_steps_per_rotation*microsteps)`. Value is not
retained on Klipper reset. Use with caution, small changes can result
in excessive pressure between extruder and hot end. Do proper
calibration steps with filament before use. If 'DISTANCE' value is not
retained on Klipper reset. Use with caution as small changes can
result in excessive pressure between extruder and hot end. Do proper
calibration with filament before use. If 'DISTANCE' value is not
included command will return current step distance.
#### SYNC_STEPPER_TO_EXTRUDER