[1.1.x] add Calibrate Z (M915) to Prepare Menu

[MikeLud]

If TMC_Z_CALIBRATION is enabled this will add Calibrate Z to the prepare menu #11331 counterpart

[bossman74]

I imagine this requires sensorless homing, but could this work if using only one TMC2130 to drive both Z axis steppers ?

[MikeLud]

@bossman74
No it does not require sensorless homing. This will work with only one TMC2130 driving both Z axis steppers, that is how mine is setup see http://marlinfw.org/docs/gcode/M915.html for more details

[thinkyhead]

@MikeLud — Thanks! Can you make an equivalent PR for bugfix-2.0.x also?

[MikeLud]

@thinkyhead PR is done already and merged see PR #11331

[Flawl3ssSWE]

That would be nice!

[MikeLud]

@Flawl3ssSWE PR for bugfix-2.0.x is done already and merged see PR #11331

[Flawl3ssSWE]

Sorry for asking what is meant by PR have seen it a lot around here? Also, can the Marlin 2.0 still be used on 8-bit boards as the MKS GEN L series, Ramps etc?

[Sickeroni]

@Flawl3ssSWE
"Pull Request"
if you Fork a Git-Repository, you can modify the code in your fork. if the changes should go back to the main-repository you create something like "hey i have changes, please add them". That is a pull request, because you request they pull your changes.

[Flawl3ssSWE]

ahh ok, thank you very much!

[MikeLud]

@Flawl3ssSWE you can use Marlin 2.0 on 8 bit boards, I have the MKS GEN L with 2.0 loaded.