Big stepper and driver powered up!
Channel: ehud42
Date: 2013-11-24

If you disconnect the ground (at your own risk!) from ATX power supplies, you can chain them together to achieve higher output voltages. Here I've chained 2 together (+12V from one into "ground" of the other) to get 24VDC. That upgraded voltage goes into a TB-6560 stepper driver set at 2A. The result is an impressively fast RPM on my big 3v 3A steppers (obtained from old line/mainframe printers).

Very happy!