Delta A stepper moving distance diff to B&C

General Discussion
1

Basic Information:

MODEL: Custom Delta 400x600
BTT Pico
klippy (3).log (2.0 MB)

Installed new PICO board
Got config all working nicely
EXCEPT
When I do checks, even though all rotation distances are the same, same steppers, etc and worked fine on previous motherboard, the A stepper move a lot more than the others when doing BUZZ

OR

If I now just incrementally move Z down, the A tower is moving a lot more than the others. Contrary to the klipper log, I changed the rot distances all to 40 and no diff
Any ideas?

Cheers

2

You don’t have the TMC drivers configured. It’s possible one of them is running at a different microstep setting for some reason. You should add TMC 2209 sections so you can properly control the drivers.

3

Cheers
So is it safe to just copy out of the pico cfg and rename to point to the delta steppers?
ie
[tmc2209 stepper_a]
uart_pin: gpio9
tx_pin: gpio8
uart_address: 0
run_current: 0.8
hold_current: 0.6
stealthchop_threshold: 999999

EDIT: Yep all good. Many thanks

4

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