Open-Source & DIY
Community-built, open-source robot hardware and software — low-cost arms, legged robots, and learning frameworks that lower the barrier to entry for robotics research and hobbyist builds.
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| Project | Category | Creator | Cost | Repo / docs |
|---|---|---|---|---|
| SO-101 (SO-ARM101) A low-cost, 3D-printable 6-DOF robot arm designed to work with Hugging Face's open-source LeRobot library, aimed at making robot learning research accessible on a consumer desktop. Deep dive: SO-101 → | Robot arm | Hugging Face (LeRobot) / TheRobotStudio | $100–$500 depending on assembly & kit | Repo / docs → |
| LeKiwi A 3D-printable, three-wheel omnidirectional base that carries a Hugging Face SO-100/SO-101 arm, turning it into a mobile manipulator supported by the LeRobot library. Deep dive: LeKiwi → | Mobile robot base | SIGRobotics-UIUC (Hugging Face LeRobot) | $184–$499 depending on build variant | Repo / docs → |
| Open Duck Mini (v2) An open-source, 3D-printable mini bipedal robot inspired by Disney's BDX droid, built as an accessible platform for reinforcement learning and sim-to-real experiments. Deep dive: Open Duck Mini → | Bipedal robot | Antoine Pirrone | ~$400 in components | Repo / docs → |
| Amazing Hand An 8-DOF, fully 3D-printable anthropomorphic robot hand with all actuation self-contained inside the hand, simplified from academic research to bring the cost of experimenting with dexterous hands under €200. Deep dive: Amazing Hand → | Robotic hand | Pollen Robotics (Hugging Face) | < €200 in parts | Repo / docs → |
| OpenArm A fully open-source, 7-DOF-per-arm bimanual humanoid arm for physical AI research, from a Tokyo robotics company spun out of Reazon Holdings — now natively supported by Hugging Face's LeRobot. Deep dive: OpenArm → | Bimanual robot arm | Enactic, Inc. | $6,500 for a complete bimanual system (certified vendor) | Repo / docs → |