Open-source robotics, end to end
Showcase
The robots, grippers, and tools we ship working demos for. Click through to inspect the URDF, drive the joints, or chat the design into CAD — all in your browser, no install.
Featured · open hardware
SO-ARM101 + Robonine 76 mm parallel gripper
The LeRobot 5-DOF arm with a 3D-printable parallel-jaw gripper that grabs anything from screws to soda cans. 150 N grip, 76 mm full stroke, 0.1 mm repeatability, swappable RealSense / Orbbec / USB camera mount. ~$70 in parts, 30-minute assembly.
Hardware design © Robonine · GPL-3.0 · STL/STEP/URDF in their repo. We host their assembly STL for the live preview to the right.
loading STL viewer
Featured · AI-driven design
Text → CAD, in your browser
Type what you want, the model emits structured ops, the scene updates live. Inspired by earthtojake/text-to-cad and Adam-CAD: natural language goes in, validated CAD ops come out, exports drop straight to STL / STEP / URDF — round-trip into the viewer, the simulator, or your printer.
“make a 30 mm cube with a 12 mm hole through the middle”
“design a Raspberry Pi mounting bracket — 4 holes on a 58 × 49 mm pattern”
“build a chibi rover chassis with two wheels and a sensor mast”
“add a 76 mm stroke gripper finger, 70 mm long, with a soft pad”
Featured · ecosystem
Round-trip into Hugging Face LeRobot
The PyTorch-of-physical-AI hub — open imitation learning, ACT, Diffusion Policy, π0/π0.5, SmolVLA, GR00T N1.5 — plus the dataset format we export from our simulator. Drop your captured trajectories straight onto the Hub and fine-tune a real policy. SO-ARM100/101 native support means our viewer demo and their hardware are the same robot.
For builders shipping products
Yes, these are commercially viable. Here's the licensing matrix.
SO-ARM100 / SO-ARM101
Apache-2.0Yes — sell, modify, redistribute
Already sold commercially by Seeed Studio, PartaBot, WowRobo, RoboSEasy, NeoBot, Autodiscovery. Hugging Face's HopeJR is a derivative.
Hugging Face LeRobot
Apache-2.0Yes
The library, the dataset format, π0 / SmolVLA / GR00T weights — all commercially permissive.
earthtojake/text-to-cad
MITYes
Pattern reference only — we built our own ops-emitter, not a derivative.
Robonine 76 mm gripper
GPL-3.0Yes, with copyleft caveat
Selling a derivative requires releasing improvements as GPL-3. Showcase rendering, displaying photos, and linking to source = fine. We don't modify the STL.
three.js / R3F / drei
MITYes
The 3D rendering stack.
Rapier 3D
Apache-2.0Yes
Rust → WASM physics engine driving the simulator.
For your own commercial product: stick to Apache-2.0 / MIT components for the SHIPPED hardware and software. Use GPL-3 grippers (or design your own) for showcase / education. Get a lawyer before finalising the BOM if you're distributing physical kits.
Why these together?
The LeRobot SO-ARM is the cheapest credible 5-DOF arm you can build at home. The Robonine gripper turns it into a manipulator that can actually pick things up. Text-to-CAD gives you a way to design mounts and accessories without learning Onshape. And the LeRobot dataset format means every demo you record in our simulator can fine-tune a real policy on a real arm. RobotForge stitches the loop: design in CAD → inspect URDF in the viewer → record trajectories in the simulator → export to LeRobot → run on hardware.