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stepper: Calculate step_distance from rotation_distance

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Add support for automatically calculating the internal step_distance
from new config parameters - rotation_distance, microsteps,
full_steps_per_rotation, and gear_ratio.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2020-01-05 20:19:43 -05:00
parent 4a41d228eb
commit 7dcc778b6c
11 changed files with 128 additions and 60 deletions
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6
docs/G-Codes.md
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@@ -172,8 +172,10 @@ The following standard commands are supported:
[SMOOTH_TIME=<pressure_advance_smooth_time>]`: Set pressure advance
parameters. If EXTRUDER is not specified, it defaults to the active
extruder.
- `SET_EXTRUDER_STEP_DISTANCE [EXTRUDER=<config_name>] [DISTANCE=<distance>]`:
Set a new value for the provided extruder's step_distance. Value is
- `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