K'nex pulley system

This design serves as a pulley for k'nex. It requires readily available 626 bearings and paracord to complete. Multiple pulley blocks can be added together to give block and tackle configurations. These can be used to add mechanical advantage to k'nex builds. The holes are sized to fit k'nex rods and are large enough for paracord to be knotted through. Includes a hook with the .stl files.