Rubber band Powered ThinkFun Motor

thingiverse

This is a rubber band operated power source for ThinkFun creations. Hook a rubber band over the hook on the Side Support and the hook on the Rotor. Wind the rotor to stretch the band. Release the Rotor to make your creation move. It uses the ThinkFun Rod and Hub Cap to connect the Rotor to what you want to move, so a longer ThinkFun rod can be used as a drive shaft as well. The relatively large radius of the Rotor provides more torque for motion. The Side Supports are compatible with other ThinkFun connectors. Four hub caps are needed to keep the side supports from falling off the support rods, and a fifth to connect the rotor to the rod acting as a drive shaft. The Side Supports should not be tight around the Rotor and hub cap, as there is some space designed in to reduce friction. The Rotor and Rod placement along the Side Supports is adjustable to utilize various rubber band sizes. Gear trains can be attached to the drive shaft to achieve different torque and speed outputs. To Use, Print: 2 Washers 1 Spacer 2 Side Supports 1 Rotor 2 ThinkFun Rods (any length can be used, the small one is in the Thing Files) 5 ThinkFun Hubcaps Print Settings Rafts: Doesn't Matter Supports: No Infill: At least 15% Notes: Ensure the Rotor prints with the hook side on the bottom so it sticks up from the Rotor, preventing the need for support.