Do you know how to derive how many full steps there are on this machine? I’ve seen conflicting information (or maybe it’s not conflicting, but I don’t understand).
400 steps/mm in the firmware.
2mm pitch leadscrew??
The machine seems to not respond to steps smaller than 0.02mm.
A thread I saw someone said the driver is microstepping at 1/16.
Some other work done identified the pins controlling the driver microstepping config actually was full stepping?
Not sure how to combine all this into a number. What’s the correct multiple for backlash compensation to not step in partial steps?
If 400 steps/mm is correct (it should be), then that would mean each step is .0025mm. If the machine isn’t responding below ~.02mm, is that implying 1/8 microstepping, and thus the leadscrew is actually 4mm pitch? So minimum motion should be roughly 0.02mm?
Several things I don’t understand about this. If each step is 0.0025mm, why does the machine not respond to 0.01mm motion commands every time - appears to move every other time. Is this a Marlin feature where small movements are ignored? Could that be the source of the issue?
I see there is a minimum segment time in Marlin - that probably isn’t related here, but might be related to another issue I’m having…