Plasma motorized circle cutter--------see the video-----see the video--------

[Captainleeward]

Hello Frank S. Good eye Frank, Yes, I was trying to think of a better way to attach the blank, your magnet Idea is the best with the stud protruding up a bit to ketch the blank hole much better. The reason is spins too fast is I underestimated the speed of the voltage regulator I bought, that is as slow as it goes so many passes is the only way unless I get a gear reduction motor. I will work on that.
I also noticed the blank was wobbling for some reason it is not level to the horizontal I think your magnet idea will fix that too.
I Really appreciate your input and thank you very much for the time you put into looking at this project. Feel free to chime in any time as better ideas work better..,,,Cap.