Before I owned a bandsaw I needed a large perfect circle cut out of a piece of perspex. I had one of those drill circle cutting things with the 2 blades, but it didnt open far enough. So I took one end off, and moved the bar across so it would cut much bigger, but with just one blade.
I figured I would put the speed on my drill press way down and just take it very slowly. My biggest worry was the balance of the circle jig. So I clamped the perspex in place and turned on the drill press and it spun beautifuly, no wobble at all....for the few turns it took to catch the power cord and tear it out of the side of the drill. It isnt woodworking I just realised, still maybe someone might learn something, I did