PF Automatic Racer


I present to you my first LEGO TECHNIC creation that is motorized with the Power Functions system (PF) only! The PF Automatic Racer! This vehicle is just what the name implies: it is motorized with PF, it is able to drive automatically without any human intervention or interference, and it is plenty quick! The electronics: a PF Battery Box, a PF Switch, a PF Medium Motor, and PF LED Lights. The rest: 42000 Grand Prix Racer wheels and tires, 5:3 geared down ratio for torque, and more. 

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