A compact, quiet, autonomous construction machine, with a footprint similar to existing Bobcat (manned) machines. The robot is equipped with tracks that provide traction across a variety of work surfaces. The modular design of the RX3 allows for interchangeable components: cab or no cab, wheels or tracks, configurable lift arms, and more. Users can tailor the machine to specific tasks, and it could be built and powered in multiple ways, including electric, diesel, hybrid, or even hydrogen