Pololu 5″ Robot Chassis RRC04A

Compact round acrylic chassis base plates provide a lightweight, rigid foundation for small differential-drive robots, sensor rigs and rapid prototypes. Thin acrylic gives a stable, flat mounting surface with pre-cut holes and slots for fitting micro gearmotors and compact wheels, so mechanical alignment and wiring are straightforward.

Offered in clear and tinted transparencies as well as solid colours, the plates let you balance visibility, aesthetic and light transmission for sensors or indicator LEDs. The simple, modular form emphasises compatibility with common small drivetrain components, easy stacking of electronics and reliable everyday use.