I’ve been creating a P3Steel for a while now (It’s really just a normal Prusa i3) and I’m having a lot of issues controlling the thing. I’ve had to replace the board and steppers because those seemed to be bad already.

My problem: the printer randomly wont move sometimes. The endstops are not triggered, they work properly. The X and Y stepper motors seem to completely give out at random and won’t move, only to work properly just a short time later. I’m running the latest Marlin firmware. I know everything mechanically/electrically because test code that runs everything works just fine, it must be an issue with Marlin.

Any help here would be appreciated, thank you!