Hi Stewart.

The steppers on your machine are Nema34 Sanyo, but as Wabeco have sanded off the labels, I have no idea as to the exact specs. As the driver is rated at 50v 2A and your control board is a nominal 24v, I can't imagine they are very beefy. Maybe someone on the forum (JAZZCNC is my best hope ) might know what drivers match up to these motors.

Cheers,

Rob