Asimov 1: Open-Source Humanoid Robot
August 26, 2026 · View on GitHub
Asimov is an open-source humanoid robot that you can build, train and customize.
Website · Manual · DIY Kit · 3D Model · Discord · X · Forum
Asimov 1 is a 1.2 m, 35 kg biped with 25 actuated degrees of freedom. This repository contains the mechanical CAD, electrical CAD, simulation model, and onboard software to build, simulate, and customize Asimov 1.
Specifications
| Spec | Value |
|---|---|
| Height | 1.2 m |
| Weight | 35 kg |
| Degrees of Freedom | 25 actuated |
| Legs | 6 DOF x 2 |
| Arms | 5 DOF x 2 (shoulder pitch/roll/yaw, elbow, wrist yaw) |
| Torso | 1 DOF waist yaw, 10 W 4 ohm speaker, 6 DOF IMU |
| Head | 2 DOF neck (neck yaw, neck pitch), stereo microphone array, 2MP monocular camera |
| CAN Bus | 5 @ 1Mbps + 1 @ 500kbps |
| Onboard Compute | Raspberry Pi 5 (media + network) + Radxa CM5 (motion control) |
| Structural Materials | 7075 aluminium, MJF PA12 nylon |
| Activity | Rated Load | Peak Load |
|---|---|---|
| Squat | 5 kg | - |
| Bicep curl | 5 kg each arm | 15 kg each arm |
| Front raise | 5 kg each arm | 15 kg each arm |
| Lateral raise | 6 kg each arm | 18 kg each arm |
Build your own Asimov
Tip
Option 1: DIY Kit: Everything you need to build Asimov 1, unassembled. Shipping now for $20,000. Order now →
Note
Option 2: Self-source: Pull the BOM and fabricate everything yourself. Assembly Manual →
DIY Kit
| Category | Included | Not Included |
|---|---|---|
| Hardware | All BOM components (unassembled), power supply & cabling, spare parts | Tools, hands |
| Compute | RPi edge board, motion control board, network board, power distribution board | 4G/5G modules |
| Sensors | Monocular camera, IMUs, mic, speaker, motor joint states | Lidar, 360 cam |
| Docs | Quick start guide, manual, DIY build videos | — |
Pre-order the Asimov 1 DIY Kit →
Self-source
Start with the repo-local fabrication manifest for the CAD-derived part inventory, then cross-reference the BOM and assembly manual for procurement details, sourcing, and fabrication notes.
Fabrication manifest
The CAD-derived fabrication manifest can be checked locally:
python3 scripts/generate_fabrication_manifest.py --check
Roadmap
| Status | Item |
|---|---|
| ✅ | Mechanical CAD — 7 subassemblies |
| ✅ | MuJoCo simulation model |
| ✅ | Electrical wiring harness |
| ✅ | Electrical schematics & PCB files |
| 🔜 | Asimov Edge |
| 🔜 | Locomotion policy |
Work with us
- Build questions?: Ask in the forum or open a GitHub Issue for bugs and contributions.
- Deploying Asimov?: Talk to us →
- Supply chain partner?: If you manufacture actuators, structural components, or electronics and want to be part of the Asimov supply chain, reach out. bd@menlo.ai