Simple Machines - Cage Gear
by ZombieCat, published
The cage gear was used extensively throughout Da Vinci's drawings and this is a good hands-on model for students to interact with, and understand how it works. Be sure to make sure students realize that the cage gear is the driver and discuss with them why they might think this is the case.
This is designed to be cut out of 5mm plywood with 3/8 dowel as the primary axle and the cage gear should use 3/16" dowels.