By applying a non-linear fit of a piecewise function with a linear
region for the Z positions below the point of contact and a constant
"tare" region, the optimal Z position can be determined with greater
precision, even beyond the ADC sample intervals. This is particularly
helpful when using a relatively slow ADC like the HX711.
Signed-off-by: Martin Hierholzer <martin@hierholzer.info>
The 'z_thermal_adjust' config section example was named
and had a maximum deviation property missing.
Signed-off-by: Frank Roth <developer@freakydu.de>
Deprecate the PROBE command's exported value
`{printer.probe.last_z_result}`. This value effectively returns the
toolhead Z position when the probe triggers and user's then need to
adjust the result using the probe's configured z_offset.
Introduce a new `{printer.probe.last_probe_position}` as a
replacement. This replacement has an easier to understand behavior -
it states that the probe hardware estimates that if the toolhead is
commanded to last_probe_position.x, last_probe_position.y and descends
then the tip of the toolhead should first make contact at a Z height
of last_probe_position.z . That is, the new exported value already
takes into account the probe's configured xyz offsets.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* Add gram scale features to load_cell
* Convert sensor counts to grams and make this available via unix socket and object status
* Basic GCodes for tearing and reading the load cell
* Guided Calibration
* Diagnostic gcode to check the health of the load cell
* Update load_cell Documentation
* Add API server load_cell/dump_force endpoint
* Update [load_cell] config with calibration fields
* Add G-Code commands for working with load cells
* Add status reference for load_cell objects
Signed-off-by: Gareth Farrington <gareth@waves.ky>
Thijs Triemstra