Eccentric Workshop Forum

I'm considering soldering the positive wire to the underside of the relevant shield terminal, just so I can hopefully continue debugging my setup the next few days while the new board in in transit.
Might this approach work, or would you advise against it?

That sounds great. Thanks so much!
If the replacement works out, I'll mail your first one back for an autopsy, if you'd like? I'd love to understand if I somehow did something, or if there's a better way for me to diagnose this type of issue in the future!

Diagnostic progress!!! after many hours of testing, I happened to push a little harder with the multimeter probe when again testing the shield incoming 24v DC voltage via the top of the screw terminals. Suddenly, the motors started moving, shuddering, etc. Just wiggles, but it was constant. Here's t...

More testing info: - Voltage on Fault, Enable seem fine and indicate no problem - I subbed in a set of DRV8825s (power off, orientation confirmed), no change in behavior - Instead of using the CNCJS terminal, I used putty to directly connect and attempt movement. No movement observed. I have a logic...

Minor update, some coworkers noticed a nearly imperceptible motor twitch when I turned things on today to show them. I think that means there's at least a path for the current.

Hi Andy! thanks for the ideas, answers in order: - current limit is set to 2.06 for all 4. The stepper motors are 2.8A, and that's (2.06) what I got running the VREF numbers for the TB67S249FTG. - you are correct, no noise, no jittering. I see no movement or locking behavior on startup, though this ...

Hello, I'm a programmer and woodworker with almost zero hardware experience, trying to navigate as needed to build a CNC rig. I will not be shocked to learn I've done something wrong, but could really use some help in figuring out what that might be. Problem: The stepper motors won't move. Any comma...