nasa-jpl/open-source-rover

The JPL Open Source Rover is a build-it-yourself robotics platform that recreates the scaled-down design of NASA's Mars rovers using consumer off-the-shelf parts.

The project addresses the challenge of making advanced robotics accessible to learners and enthusiasts by providing complete plans and specifications for a functional six-wheel rover. The design employs three key mechanical systems used by actual Mars rovers: a rocker-bogie suspension that keeps all wheels in contact with uneven ground, a differential pivot that redistributes weight during climbing, and six-wheel Ackerman steering for coordinated movement. A Raspberry Pi serves as the control system, allowing integration with various communication methods including Bluetooth, WiFi, and USB devices. The rover uses primarily GoBilda components for mechanical assembly, with aluminum as the structural material.

The project suits anyone interested in learning mechanical engineering, electronics, and robotics without requiring prior expertise. It works well as both an educational platform and a research tool for rugged terrain navigation. The total build cost is comparable to commercial alternatives like the TurtleBot 3 Waffle. The README acknowledges that other open-source, cheaper alternatives exist but notes they are slower, less robust, and more fragile than this design. The rover achieves approximately 1.6 meters per second top speed and uses ten motors to drive its six wheels.

Development activity shows consistent engagement with the project's evolution. The repository maintains documentation through a dedicated ReadTheDocs site and includes a gallery of community builds demonstrating real-world implementations. The project has undergone multiple iterations since its inception, with version history preserved in the repository. The README includes a parts list with current pricing information and addresses international shipping considerations for key components. The codebase is structured to support customization and expansion, with the hardware and electronics explicitly designed to accommodate additions like display heads and robotic arms.