Anyone here familiar with CNC milling? I've put together a CNC router table with scrap parts from an old job. When I built the control box, I used stepper boards from some very expensive equipment they were about to trash. I've had the unit in storage for some time now and when I tried to hook it all up, I found the stepper boards weren't working. Before I get into details I thought I'd check here to see if anyone knows what I'm talkiing about. It's a pretty specialized hobby and not many folks know much about it.