SO-ARM101 Low-Cost AI Arm 3D Printed Skeleton – Open-Source PLA+ parts for LeRobot, finetuned Leader/Follower/Clamps sets

Overview

SO-ARM101 Low-Cost AI Arm 3D Printed Skeleton includes 3D‑printed structural parts for building the SO‑ARM101 robotic arm and learning with the LeRobot framework. It provides open-source resources for fast assembly, calibration, testing, data collection, training and deployment. The printed parts are finetuned for easier installation and feature mounting for the Servo Adaptor Board for Seeed Studio XIAO; parts may differ slightly from the official GitHub documents. Designed for enthusiasts, students and developers seeking a low-cost, open hardware path to advanced robotics.

Key Features

Open-source and low-cost

Community-driven robotic arm skeleton from TheRobotStudio, delivered as 3D‑printed parts.

Integration with LeRobot

Designed to work with the LeRobot platform (PyTorch models, datasets and tools) for reinforcement learning and imitation learning workflows, covering data collection, simulation, training and deployment.

Abundant learning resources

Assembly and calibration guides plus tutorials for testing, data collection, model training and deployment enable quick start and continued development.

Compatible with Nvidia edge devices

Deploy with reComputer Mini J4012 Orin NX 16 GB.

Finetuned printed parts

Updated designs for easier installation, featuring mounting compatibility with the Servo Adaptor Board for Seeed Studio XIAO (printed parts may differ from the official GitHub files).

Specifications

What’s Included

Applications

Imitation learning and reinforcement learning with the LeRobot framework. LeRobot is compatible with the SO‑ARM10x robotic arm series and provides complete pipelines for teaching grasping and placing tasks, with comprehensive simulation and deployment on Nvidia Jetson edge devices.

Documents

• STS3215 Servo Motor Datasheet
• Finedtune 3D printed parts files
• Original SO-ARM101 3D printed parts
• Servo Adaptor Board for Seeed Studio XIAO Datasheet
• reComputer J301x Datasheet
• reComputer J401X Datasheet
• reComputer_mini_datasheet_V1.0

ECCN/HTS

Details

LeRobot AI Arm Kit SO-ARM101 works with reComputer Mini J4012 Orin NX 16GB, featuring a 6-axis robotic arm and open-source hardware. It supports simulation, training, and imitative reinforcement learning for whole-body coordination. The kit includes access to LeRobot Hugging Face for community resources and tools for data collection. QR codes link to GitHub, Wiki, and 3D printing files for the skeleton, enabling easy assembly and customization. Designed for education and development, it offers hands-on experience in robotics, AI integration, and real-world application prototyping in a compact, accessible format.

NVIDIA Jetson Orin NX Developer Kit with reComputer J40, displaying AI arm components and real-time system monitoring data on screen.