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tuning_tower: Add STEP_DELTA and STEP_HEIGHT parameters as alternate tuning tower syntax

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Signed-off-by: Matthew Lloyd <github@matthewlloyd.net>
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github@matthewlloyd.net
2021-08-31 20:06:13 -04:00
committed by KevinOConnor
parent 286cc1becc
commit 830c80a88a
2 changed files with 51 additions and 15 deletions
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docs/G-Codes.md
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@@ -212,18 +212,33 @@ The following standard commands are supported:
babystepping), and subtract it from the stepper_z endstop_position.
This acts to take a frequently used babystepping value, and "make
it permanent". Requires a `SAVE_CONFIG` to take effect.
- `TUNING_TOWER COMMAND=<command> PARAMETER=<name> START=<value>
FACTOR=<value> [BAND=<value>] [SKIP=<value>]`: A tool for tuning
a parameter on each Z height during a print. The tool will run
the given COMMAND with the given PARAMETER assigned to the value
using the formula `value = start + factor * z_height`. If BAND is
provided then the adjustment will only be made every BAND
millimeters of z height - in that case the formula used is
`value = start + factor * ((floor(z_height / band) + .5) * band)`.
If `SKIP=<value>` is specified, the tuning process doesn't begin
until Z height `<value>` is reached, and below that the value will
be set to `START`; in this case, the `z_height` used in the
formulas above is actually `max(z - skip, 0)`.
- `TUNING_TOWER COMMAND=<command> PARAMETER=<name> START=<value> [SKIP=<value>]
[FACTOR=<value> [BAND=<value>]] | [STEP_DELTA=<value> STEP_HEIGHT=<value>]`:
A tool for tuning a parameter on each Z height during a print.
The tool will run the given `COMMAND` with the given `PARAMETER`
assigned to a value that varies with `Z` according to a formula. Use `FACTOR`
if you will use a ruler or calipers to measure the Z height of the optimum
value, or `STEP_DELTA` and `STEP_HEIGHT` if the tuning tower model has bands
of discrete values as is common with temperature towers. If `SKIP=<value>`
is specified, the tuning process doesn't begin until Z height `<value>` is
reached, and below that the value will be set to `START`; in this case, the
`z_height` used in the formulas below is actually `max(z - skip, 0)`.
There are three possible combinations of options:
- `FACTOR`: The value changes at a rate of `factor` per millimeter.
The formula used is
`value = start + factor * z_height`.
You can plug the optimum Z height directly into the formula to
determine the optimum parameter value.
- `FACTOR` and `BAND`: The value changes at an average rate of `factor` per
millimeter, but in discrete bands where the adjustment will only be made
every `BAND` millimeters of Z height.
The formula used is
`value = start + factor * ((floor(z_height / band) + .5) * band)`.
- `STEP_DELTA` and `STEP_HEIGHT`: The value changes by `STEP_DELTA` every
`STEP_HEIGHT` millimeters. The formula used is
`value = start + step_delta * floor(z_height / step_height)`.
You can simply count bands or read tuning tower labels to determine the
optimum value.
- `SET_DISPLAY_GROUP [DISPLAY=<display>] GROUP=<group>`: Set the
active display group of an lcd display. This allows to define
multiple display data groups in the config,