Hi Folks,
Having another problem with this laser. The table bed, which is controlled by 2 stepper motors mounted to the bottom is not moving.

The way we used to move the bed up and down was by using the controller and pressing 3 and 4 on the number pad.

With U-axis set to Negative, 3 goes up, 4 goes down

With U-axis set to Positive, 3 goes down, 4 goes up

Now when we press 3 or 4, the stepper motors engage and the pulleys / belts are turning, but the bed does not move.

In a real jam, since we need the bed to move up and down to focus the laser.

Any help appreciated. Thank-you