Try using 1/16 or 1/8” cork gasket material on your disc. Then use feathering adhesive to stick sandpaper on. Stick paper on close to one end. Use exacto knife to cut paper. Use left over paper for hand sanding

Good stuff! I'll have to try the white line

Looks like my bitch session has actually helped some folks😂

wow that is the worst way i think ive ever seen to cut the paper around the disc

Cant understand the Australian guy