8294 Lego Technic Excavator + 8293 Power Functions Set Review Movie made with I-Movie Apple Special thanks to Nic - Nekko for buying this Set ;-) shop.lego.com shop.lego.com
This Mechanism use the friction coefficient difference between rolling and sliding friction. Lego Technic Bug Robot used Chebyshev Linkage Mechanism Linear move : Wheel rotate Arc move : Wheel none rotate Repeat : linear and arc move Motor : 8293 Power Function