Pulleys 624ZZ and alike

pinshape

Summary I experimented with various pulley designs until I created my own custom designs, which I believe perform effectively. Instructions You can assemble the pulleys using M3 screws and M4 nuts on both sides; you'll see how they fit together from the accompanying pictures. There are two models available: One set of symmetrical parts that can be glued together, slightly smaller in size. Another pair of distinct parts that attach to each other; while not recommended, a small amount of glue will prevent them from separating after repeated spinning.