Love the design. Worked great. I decided to use 3D printed bearing, because I didn't want it completely frictionless. It worked great. Mine was a little noisy because of the 3D bearing wobble (Not your fault) and rub the sides. I'm just going to add a small spacer inside the rollers to push the roller a tiny bit away from the side walls and glue the bearings in place. Great work and thank you for a great design/remix!!