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Robots you can build.

Each project here is a complete robot you can build on your own desk: the parts list with prices, the print files, the wiring, the firmware, a simulation to try it in before you buy anything, and a build plan that tells you what goes wrong at each step. Pick one, order the parts, and learn by building something that moves.

Projects

Ouro curled into a closed wheel: nine orange and yellow printed links, head pinned to tail by magnets

Servos · simulation · reinforcement learning

Ouro, the worm that bites its tail and rolls away

A flat strap of nine printed links and eight hobby servos. It crawls like a caterpillar, curls up, snaps its head onto its tail with magnets and rolls away as a wheel. You train it in MuJoCo on your laptop, then run the policy on the real robot.

Parts: About $87
Hands-on: About 15 hours
You learn: Printing, power, ESP32, RL, sim to real

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