[Matt Adams]

We are doing it this year, and the way you do it isn't as complicated as people think. The short story is that you want to have the motors drawing the same current. Fortunately, the atwoods and the drills draw roughly the same current when you happen to mesh them at free speed.

I'd suggest that you mesh the drill and chip together when the drill is in high, and then control a single output shaft to that. It'll take less of a reduction.

If you'd like some more details, please ask.

Good luck!

Matt