Complete sourcing guide with Indian suppliers. Every part you need — motors from Evelta, electronics from Robu.in, and everything else to get your LeRobot arm running.
The SO-101 is the next-generation open-source robotic arm by TheRobotStudio & Hugging Face. Designed for AI-powered teleoperation with the 🤗 LeRobot library.
Classic teleoperation setup with a leader arm for control and follower arm that mimics movements via AI.
Follower arm runs on 12V STS3215-C018 motors with 30kg·cm stall torque for real-world manipulation.
Seamlessly integrates with LeRobot for imitation learning, ACT policies, and diffusion-based control.
All critical components available from Indian suppliers — no international shipping hassles or customs duties.
Everything you need to build both Leader and Follower arms. Click any item to go directly to the product page.
Feetech STS3215 Series — from Evelta.com
Controller boards, power supplies & cables — from Robu.in
Source STL files and print locally through your preferred vendor
Use the official print guide to evaluate materials and tolerances before placing a local print order.
Both Arms · Full Teleoperation Kit
* Prices are approximate and may vary. Excludes shipping & GST.
Once you have all parts, follow these steps to build and run your SO-101.
Download STL files from the official repo. Print with PLA+, 15% infill, 0.4mm nozzle at 0.2mm layer height.
Get STL Files →Follow the official Hugging Face assembly guide. No gear removal required for SO-101 (improved over SO-100).
Assembly Guide →Install the LeRobot library, configure motor IDs, calibrate your arms, and start collecting teleoperation data.
LeRobot GitHub →Train imitation learning policies (ACT, Diffusion, π0) on your collected data, then deploy for autonomous operation.
Documentation →The follower arm uses 12V motors (C018) with a 12V 5A power supply. The leader arm uses 7.4V motors with a 5V power supply. Never mix power supplies between arms!
The SO-101 leader arm uses three different gear ratios for better handling: 1:345 (Joint 2), 1:191 (Joints 1 & 3), and 1:147 (Joints 4-6). Make sure to order the correct variants!
Both Evelta and Robu.in ship pan-India. Expect delivery within 3-7 business days. For 3D printing, check local services or printing services guide.