RC Car

Overview

The RC car is a 1/10-scale electric brushless racing buggy: a four-wheel-drive off-road model built on a composite chassis with independent suspension, proportional steering, and a 2.4 GHz pistol-grip radio. It mirrors full-size racing practice with differentials, oil-filled shocks, and a slipper clutch.

The Chassis is the foundation: a carbon/FRP plate with front and rear bulkheads and foam bumpers. A painted Lexan Body Shell shell clips over it on body clips, and four Wheel assemblies, each a rim, tire, and foam insert, carry the car.

How it works

Power runs through the Drivetrain. A sensored brushless Brushless Motor drives a pinion that meshes with a spur gear feeding the Transmission, a center gearbox with a slipper clutch that limits shock loads. A center driveshaft and two differentials split torque to the wheels, with dogbone CV shafts driving each hub.

Each corner uses an Suspension Corner unit: a lower A-arm on hinge pins, an oil-filled coilover Shock Absorber, a hub on bearings, and a turnbuckle camber link. Direction comes from the Steering assembly, where a servo moves bellcranks and steering links to turn the front spindles.

Onboard control lives in the Onboard Electronics module: a 2.4 GHz receiver and a 2S hard-case LiPo battery pack, wired in with the onboard Wire Bundle. The driver commands the car with the Transmitter, a pistol-grip radio whose steering wheel and throttle trigger feed the receiver, which in turn drives the steering servo and the ESC.