The Romi chassis is a differential-drive mobile robot platform with a diameter of 6.5″ (165 mm). The plastic components making up the chassis are available in six colors, either individually or in kits including motors and battery contacts. A power distribution board and quadrature encoders for the motors are also available.
The Pololu Zumo chassis is a tracked robot platform that is small enough to qualify for Mini Sumo competitions and works with a variety of micro metal gearmotors. You can use this chassis as the base for your custom robot or get one of our more complete Zumo robots, which include electronics designed specifically for the Zumo chassis.
Capable of speeds exceeding 3 feet per second, the Pololu 3pi is a great first robot for ambitious beginners and a perfect second robot for those looking to move up from non-programmable or slower beginner robots. It is designed to excel in line following and maze solving, but this little robot can do a lot more than that!