Has anyone here used tmc2100 drivers with their board? I bought a few of them and dropped 2 in my cohesion mini board, confirmed it was installed in the correct direction only to have the GLCD emit a loud continous beep (not just the boot up beep). I shut it down, removed the driver and I just got the startup beep. Installed a DRV8825 driver and only get the startup beep and the axis moves back and forth like normal. Any ideas as to why this is happening?

“Brian Albers”

Anthony Bolgar March 19, 2018 17:26

If I remember correctly there is a jumper wire that needs to be added to the driver to remap on of the pins that is not in the standard location. Ray has the info somewhere.

Ray Kholodovsky (Cohesion3D) March 19, 2018 19:17

Could be a short somewhere with the TMC. Don’t power up again. Show pictures of it and how it’s plugged into the board.

Brian Albers March 19, 2018 19:29

I will post pictures when I get home. I matched up the step/dir pins on the both boards and the board had the one pin removed for use with a ramps board outlined in this post:

https://www.google.com/amp/www.instructables.com/id/Install-and-configure-SilentStepStick-in-RAMPS-TMC/%3famp_page=true

However I’m seeing the note that that pins removal is no longer necessary. Have 2 backup tmc2100s that haven’t had the pin removed that I can try as well.

Jim Fong March 19, 2018 19:41

I’m using some tmc2208’s in my k40 for a few months now. Good ones from digikey. The cheap eBay one died early on.

Brian Albers March 19, 2018 19:59

These were admitted purchased off eBay, found some real tmc2100s on digikey, I’ll order those and try. The drv8825 drivers even at 1/32 microstep sound like shit on the accel/decal. Whole assembly groans, not sure if that’s just gantry design or what.

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