The first step was to purchase a basic RC car frame to serve as the basis for the kart. [3D Sanago] then set about building a kart skeleton over the unpainted body of the basic RC car.

This design features a 3D-printed cube that balances using reaction wheels. Utilizing gyroscopic sensors and accelerometers, the device adapts to shifts in weight, enabling it to maintain stability.

Learn how to build your own desktop fully functional robot arm powered by Arduino hardware and assembled using 3D printed parts.

Today, download speeds have significantly improved. You still can't 3D print an entire car, but you can print a lot of parts. Motorcycles are a little easier.