Well I got inspired and made me one. It operates wonderfully but it did not perform. So here is the dilemma and the question.
I used 3/4" ply 15 1/2 in diameter for both discs and everything worked out great aside form the ply warping ever so slightly. Needless to say it renders the chuck worthless since it wobbles about 1/16". I figured, that must be the reason so I'm ready for round 2.
What is the preferred material to make it? I figure MDF but I like to know what your opinions are. Would you use 3/4 for both discs? I don't know where I could get MDF thinner than 3/4. Would lowes or HD sell less than a 4x8 piece of MDF?
Thanks for the info.