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docs: Note PROBE_CALIBRATE results invalidated on motion system update

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Any hardware change to the hotend or probe, change to the kinematics,
or change to the bed tilt is likely to invalidate the results of
PROBE_CALIBRATE.  Try to warn the user of that.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Kevin O'Connor 2020-10-17 19:36:45 -04:00
parent f8cb1e30eb
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15
docs/Probe_Calibrate.md
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@ -70,6 +70,21 @@ results to the config file with:
SAVE_CONFIG
```
Note that if a change is made to the printer's motion system, hotend
position, or probe location then it will invalidate the results of
PROBE_CALIBRATE.
If the probe has an X or Y offset and the bed tilt is changed (eg, by
adjusting bed screws, running DELTA_CALIBRATE, running Z_TILT_ADJUST,
running QUAD_GANTRY_LEVEL, or similar) then it will invalidate the
results of PROBE_CALIBRATE. After making any of the above adjustments
it will be necessary to run PROBE_CALIBRATE again.
If the results of PROBE_CALIBRATE are invalidated, then any previous
[bed mesh](Bed_Mesh.md) results that were obtained using the probe are
also invalidated - it will be necessary to rerun BED_MESH_CALIBRATE
after recalibrating the probe.
# Repeatability check
After calibrating the probe X, Y, and Z offsets it is a good idea to