The motor on my old craftsman lathe bound up on me last week. I thought this would be a good time to try and swap to an DC motor so I can have a variable speed motor. I've heard it's common to use a treadmill since it already has the AC to DC converter, motor, and speed controller. Has anyone here done this swap? I have a buddy that has a treadmill he's going to give me for this, but I want to get as much info on the swap before I start tearing into it.