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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/Config_Changes.md
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@@ -6,6 +6,12 @@ All dates in this document are approximate.
# Changes
20201218: Rotary delta and polar printers must now specify a
`gear_ratio` for their rotary steppers, and they may no longer specify
a `step_distance` parameter. See the
[config reference](Config_Reference.md#stepper) for the format of the
new gear_ratio paramter.
20201213: It is not valid to specify a Z "position_endstop" when using
"probe:z_virtual_endstop". An error will now be raised if a Z
"position_endstop" is specified with "probe:z_virtual_endstop".