Just like everybody said: what cool project! I loved putting the LowRider2 together and just finished the electrics. But in the first run I have problems with the movement of my motors. All the motors are making a really loud noise and aren’t moving. They only go about 5mm to the left and back to the right. I captured in this video:
That looks like it’s skipping steps, which could be drivers that arent tuned, or a wiring issue, or something is sticking. Is it moving smoothly when you move it by hand?
I remember a couple people having problems with mini rambo clone boards… I think maybe the pinout on the stepper motors was incorrect. Sorry I don’t know where the post is but it’s somewhere in these forums.
On the RAMPS, there is a little screw thay adjusts the current. The mini rambo has a digipot that controls the current. I agree with Greg, it sounds like the pins might be wrong.
I have Read it in the forum. I ordered an original Ultimachine board (hard to find in Europe!). When I’m returning from my vacation I will check if that’s the solution