Crowned Pulley

Over the last couple of months I've read in the forums about people having difficulty with the belts' teeth rubbing on the pulley flanges or fender washers and causing print quality issues. The other night I remembered that flat belts on a crowned pulley will automatically find the center of the pulley. Flanges or fender washers are completely unnecessary!

I consulted my old copy of Machinery's Handbook, 24th edition, and even though it's from the early 1990's, it has a chapter on flat leathe