Off-Road RC Vehicle Platform

A fully custom off-road RC vehicle designed and built from scratch: chassis, drivetrain, steering, suspension, embedded control, and power system, all under strict size and budget limits with no kit or instructions.

Sheet: 03
Context: Personal build
Period: Dec. 2025 - Apr. 2026
Drivetrain: Modular FWD / 4WD
Control: Arduino + PWM
Fabrication: Mostly 3D-printed

The finished RC vehicle with red 3D-printed suspension arms and exposed electronics — Build · Operational vehicle

SolidWorks assembly of the full vehicle chassis and suspension — CAD · Full SolidWorks assembly

Vehicle in 3D

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Complete vehicle assembly: chassis, drivetrain, steering, suspension, and electronics.

The full SolidWorks assembly plus the final printed parts, taken straight from the build files.

What I did

Designed the full vehicle CAD in SolidWorks: chassis, drivetrain, steering, suspension, body
Developed a modular drivetrain supporting FWD and 4WD configurations
Integrated Arduino control with motor drivers, DC motors, and servo steering
Implemented PWM motor control, steering calibration, and a serial command interface
Revised suspension arm lengths and steering knuckles in a second design pass

Results

Fully operational vehicle with custom chassis and drivetrain
Handles off-road terrain; electronics hold up under load
Modular design allows component swaps without a full rebuild