Hi, Vern. Hats off to your barn! The concept is pretty simple. A variable speed drill (use a good one), replace chuck with a pully, put a pully (I used a 4 sheeve one off a junk little drillpress to vary speed more) on a boat winch. Helps to run the cable around the end of the mill and to the other side so it dos'nt try to rack the carridge sideways. I stay close enough to adjust the speed if I need to, but it's nice to be out of the fume zone, and not push the saw.
Here's pics of my shack and my shed.
Russell