The problem with a belt-disc sander is that when I'm sanding on the belt, the disc still turns. I've lost count of the times I've accidentally raked a workpiece–or even my knuckles–against the spinning disc. To protect all wood and human parts, I built the simple disc guard.To make your own guard, cut a half-circle the size of the factory shroud out of scrap 3/4" material. Epoxy a couple of rare-earth magnets into its flat edge to hold it to the table. At the top of the guard, add a stand-off screw to keep the guard from tipping into the disc. I recommend painting the guard a bright color to highlight the need to have it in place when running the sander.—Dick Butula, Germantown, Wis.