I made a new degree wheel yesterday, the other two were to bulky and one was too flimsy. I used Super Phatic, it soaks outward everywhere, to glue the picture to a piece of scrap .25" luan ply. Then rough cut the image on my little band saw, drilled an 8mm hole dead center. Then inserted an 8mm bolt with a short non threaded shoulder with a Saito prop washer on each side of the wood. I then put my drill,press in it's fastest belt position and sanded it perfectly round. Easy Peazy.