Drum sanders save a lot of time in the shop. You lose a lot of that saved time, though, when you have to change the sleeve and it's stuck to the rubber drum.
woodworking technique shop tip

Sprinkle a little cornstarch on the rubber sanding drum before you put on the sleeve. Cornstarch prevents the two from sticking together, so sleeve changes are easy.
—Al Lantinen, Portsmouth, N.H.