Has anyone on here ever clamped a piece of wood in the shape of a half moon to their platen on the belt grinder to get a hollow grind? I know it's not the best way to go about it but I'm gonna try because I don't have a real grinder yet. I read that if you do this, you cover the rounded part of the wood with graphite covered cork for good belt sliding. Just wondering if anyone on here has tried this method. Thanks