Testing 2 new 3D printed pulley systems on my Unimat. Showing both toothed and rounded belt systems. The toothed belts eliminate slip but they cannot be stretched off the pulleys or be installed as easily as the round belts, nor can they handle any sort of tool jam well. I am using green polyurethane textured belts for the second setup, which seem to have great grip on the pulleys, this is probably the setup I will stick with for now.