3D printable Mini Mountain bike

grabcad

A miniature 3D printable mountain bike is available at a 1/6 scale of a child's bicycle. This unique design features hubless rims and a drive shaft, with rotating rims, fork/handlebar, and crank. The crank drives the rear wheel through a series of gears. A bevel helical ring gear on the crank interacts with the bevel helical pinion gear on the shaft drive. The miter gear on the shaft engages the pinion spur gear, which then drives the main ring gear on the rear rim. Your feedback is appreciated!