Not a completed project... as a matter of fact it's just in the "Hmmm, I wonder....." stage. I already have a PC power supply hooked to my mill as an "Accessory supply" (Lights, maybe a coolant pump, power feed etc.) I finally got to take a closer look, and see what I have that may work for the power feed. The "doner" is a 12V Ryobi cordless drill. I took it apart and it looks like there's some mighty usefull bits in there. The motor, gear drive and clutch are all one assembly. (Cylindrical, about 1.25 diameter.) I got the chuck off, the output shaft is threaded outside with what looks like maybe a 3/8" regular thread and tapped left hand threads on the inside. I don't know if the threads are metric or Imperial. (Yet) Mounting it should be dead easy. Electrically.... some pleasant surprises. I think the motor controller can be hacked. It may take some fancy soldering, but the main circuit board has what is clearly a potentiometer "strip" on the trigger that I'm pretty sure I can isolate and replace with an outboard potentiometer. The Fwd/Rev switch is a seperate unit from the controller and can be easily replaced with a regular triple throw switch. I will take some pics next time I get to work on it and post them up, along with thoughts and how I manage (*if* I manage) to hack the speed control. I am pleasantly surprised by what I've seen in there... it looks like it may be easy to use not only the powertrain but even the speed controller too! I kind of figured it would be so proprietary there would be no chance of salvaging that part. It's obviously rated for it, and it's nice and small too. This may end up being something like the $10 powerfeed... since the drill was a toss away.