Bigtreetech TMC2160 driver

[3DPMicro]

I got one of these to try with a Nema 23 https://www.ebay.com/itm/274353833623 but the signal wiring is something I haven't seen before. I am running this off a D2 Ethernet with the Expansion Board. It doesnt work how I would logically think it should e.g. pul-pul, en-en, etc.. The instructions (the Ebay page) appear to suggest tying 3 driver inputs to a single output in either cathode or anode? enable high or low. So do I do this and leave the other outputs open on the expansion board?

[o_lampe]

@3dpmicro
the expansion board has all the pins needed for this differential driver. My suggestion is to wire 1:1 drive+/-, step+/-, enable+/-.
The wiring instructions are for simple Ramps-style drivers.

[3DPMicro]

@o_lampe Ahh, that makes sense. Works now. Just needed to change enable

To anyone interested. This driver rips. Takes short step pulse timings as one would expect a TMC driver to do so its not taxing max step rate. Spins a 4a Nema 23 @2500rpm, 10k acceleration with 50v on the bench. Same motor, closed loop with CL57T driver needed longer step timings. 1200rpm was tops for that. Unfortunately this module is not suitable for anything less than about a 2.8a motor and stealth chop doesn't seem to be usable.
Time to get it on the test rig to see what it will do moving some mass

[dc42]

@3dpmicro said in Bigtreetech TMC2160 driver:

Unfortunately the 2160 is not suitable for anything less than about a 2.8a motor and stealth chop doesn't seem to be usable.

To be clear, that statement refers to that particular driver module, not the TMC2160 chip itself.

[3DPMicro]

@dc42 edited to reflect that