How much was the VS motor Laurence? I'm thinking of buying one, in fact I called surplus center today about a $49.95 VS motor that they had a few months ago but they were sold out.
The Frink disc is a great tool. I hooked mine up to an old motor I found in the trash and have a large pulley on it to reduce the speed down to about 200 rpm. I use it all the time for flattening steel and polishing titanium. I just put a LIGHT misting of spray adhesive on the back of various grits of sandpaper. After placing on the disc I cut it round using a razor blade. I have heard some folks saying that they clean up flat grinds on it but I have not tried that myself, at least not successfully.
