I posted this under RAMPS hardware, but realized maybe it is a software problem.
I have Marlin loaded on my RAMPS board and Arduino. Move axis can only step in the + direction (XYZ) There is a direction signal that changes with direction when I move the shaft encoder
+ or -. The enable line goes low when I start a move, and goes off after inactivity. Steppers are OK. I've tried different stepper driver modules.
I've tried both with and without the limit sw's plugged in, and both activated and not. Seems not to be making step pulses in one direction.
Thoughts?
