ThinkRobotics LeRobot SO-101 - 6 Axis Robotic Arm

LeRobot SO-101 - 6 Axis Robotic Arm

The SO-ARM101 is an open-source, 3D-printed robotic arm designed for embodied intelligence research. Hardware optimizations address issues like servo power and structural jams, enabling a focus on AI algorithm development. Unlike standard robotic arms, the SO-ARM101 is designed with learning at its core. It can be trained using techniques like imitation learning and reinforcement learning to perform tasks such as object manipulation and motion replication. The entire system—from hardware to software and algorithms—is fully open-source.

Unassembled DIY Robotics Kit

Upgraded 12V Servo Configuration

This variant includes the upgraded 12V STS3215 servo configuration for the follower arm. Compared to the standard 7.4V version, the 12V servos provide significantly higher torque, delivering up to 30kg.cm stall torque, making the robot better suited for heavier payloads, improved responsiveness, and demanding manipulation tasks. The leader arm continues to use the proven 7.4V servo configuration for accurate motion capture and teleoperation control.

Simultaneously Updated With The Official Hugging Face project

The SO-ARM100 / 101 robotic arm is an official open-source project by Hugging Face. And this kit stay fully synchronized with the project, allowing users to follow the official tutorials and examples directly and experience new features as soon as the project is updated.

6-DOF Robotic Arm, Flexible Motion Space

the robotic arm moves more flexibly and freely with 6-DoF spatial motion, easily performing complex tasks such as grasping and handling

Switch Between Two Hosts Via USB Hub To Share External Devices

The CAM Kit and Jetson Orin Nano Kit equipped with USB hub, allows seamless switching between dual hosts for model training and experiment testing, without repeatedly plugging and unplugging the robotic arm or camera devices, significantly boosting efficiency

Industrial grade USB HUB, Extending 4x USB 3.2 Ports

*for reference only, please refer to the package content for the detailed part list

Excellent User Experience, Designed For Everyone

From DIY enthusiasts to educators and even researchers, everyone can quickly get started with our kits. Whether for simple demonstrations or advanced development, it delivers a stable and smooth user experience

*for reference only, please refer to the package content for the detailed part list

Comprehensive Tutorial Resources, Community And Ecosystem Support

Comprehensive tutorials covering everything from assembly to real-world applications, enabling users to get started with robotic arm projects from scratch with ease.

The SO-ARM101 robotic arm is backed by the Hugging Face open-source community and enjoys an active developer ecosystem. With our hardware kit, users can quickly get started and collaborate with developers worldwide, jointly contributing to innovative projects.

Outline Dimensions

Leader Robotic Arm

Follower Robotic Arm

* the dimensions above are for reference only and may differ from the actual size.

Community Inspiration

Walk through the whole dev journey with Nikodem Bartnik, using SO-ARM101 to showcase: from hardware assembly and servo control, to training a custom policy and achieving real-time block-picking inference. Follow his hands-on experience to understand every step, troubleshoot potential issues, and explore what’s possible with this open-source robotic arm.

Step-by-Step Assembly Instructions

The follower arm uses 6x STS3215 motors with 1/345 gearing. The leader, however, uses three differently geared motors to make sure it can both sustain its own weight and it can be moved without requiring much force. Which motor is needed for which joint is shown in the table below.

To install LeRobot, follow the Installation Guide.

Resources

Parts List

Camera Not Included