Iapyx Research
Open source

Reference designs you can build.

31 open hardware and software projects for humanoids, exoskeletons and prosthetics — what they cost to build, what license they carry, and where the code lives. Sort by cost to find the cheapest way into a platform.

TypeAll 31Humanoid / robot 24Exoskeleton 4Prosthetic 3
3 shown3 with a public repo3 distinct licenses
3 of 3
Links
e-NABLE (Raptor Reloaded hand)A global volunteer network (~40,000 volunteers, 100+ countries) that designs and 3D-prints free body-powered prosthetic hands and arms for people who need them, largely for children and in underserved communities. Raptor Reloaded is its most widely built hand design. Traces back to Ivan Owen and Richard Van As's original 2011-2013 3D-printed hand collaboration — the project usually credited with starting the open-source-prosthetics movement.
ProstheticBSD 2-Clause (Raptor Reloaded design)Roughly $20-50 in 3D-printing filament and hardware
CodeSite
HACKberry3D-printed myoelectric prosthetic arm — detects muscle/EMG signals via an onboard sensor and microcontroller to drive individual finger and hand movement. Built by exiii, a Tokyo team of ex-Sony hardware engineers; placed in the 2013 James Dyson Award and won the Gugen Hardware Contest while still in development, then open-sourced the 3D models, code and sensor data in 2015.
ProstheticOpen-source design files released by exiii (no formal OSS license file in the repo)~$300 in parts, per exiii
CodeSite
Open-Source LegNSF-funded modular, powered knee-ankle robotic prosthetic leg platform, with a Python SDK for developing and testing control algorithms on the hardware. Used by 20+ research groups worldwide, letting labs enter lower-limb prosthetics research without designing a leg from scratch.
ProstheticLGPL-2.1 (per the repo); GPL-3.0 is cited on the docs site, so check current terms before use—
CodeSite