Z motors don't work

Question

Z motors don't work

janoist1 opened this issue 5 years ago · comments

Hi,
I'm testing my setup using raw g code commands, like z10.
Z motors don't seem to work, they only make some whistle-like sound when supposed to be moving. I have tried with different steppers and motors too. Different stepper driver does the same issue, wiring to different motors also same. Just buzzing/screaming.
Any idea?
I can't wait for this working on my desk... 🙏

A video showing what happens when running g28:
https://photos.app.goo.gl/CoAF6Atj1Cdkjohi7

Istvan Jano · Answer 1 · Thu Sep 19 2019 21:32:06 GMT+0800 (China Standard Time)

Ok, I have managed to make the Z work! Had to adjust the pulse STEPPER_PULSES_PER_MM_Z down to 50. I'm not sure what it exactly does or how it affects the end print quality. 🤷‍♂️

Istvan Jano · Answer 2 · Thu Sep 19 2019 22:52:13 GMT+0800 (China Standard Time)

Now the question is, how to calculate the config values for my printer? Unfortunately the motors spin too fast, especially the extruder motor. Thanks!

Nikolay Khabarov · Answer 3 · Thu Sep 26 2019 05:30:57 GMT+0800 (China Standard Time)

how to calculate the config values for my printer?
Find specs for your hardware. Or calculate these values according to your construction. Or do some empirical tests - commands have values in millimeters, compare it with actual physical distance of axis and adjust parameters.