








The SO‑101 is the next‑generation version of the SO‑100 robot arm, originally designed by the RobotStudio in collaboration with Hugging Face. This leader arm frame is the human-controlled half of a teleoperation system.
This kit includes all necessary 3D printed structural components to build the leader arm - the arm that you physically manipulate to control the follower arm.
Perfect for:
Note: This is a component product. To build a functional arm, you'll also need the Leader Arm Electronics Kit. For a complete teleoperation system, see the Complete Teleoperation Kit.
Ships in 2–5 business days
Fulfilled by Amazon from US warehouses. Tracking emailed once the box is on the truck.
30-day return on defects
If a part arrives damaged or wrong, reply to your order email — we make it right. See full terms.
Open-source by design
Every part matches the upstream LeRobot SO-ARM100 spec. Swap, modify, and share freely.
This is a component. To build a functional arm you also need:
This kit is based on SO-ARM100 (LeRobot Project) by Hugging Face and LeRobot Community.
| SKU | SO-101-LEADER-FRAME |
| Material | PLA+ |
| Arm Type | Leader |
| Assembly | Mechanical assembly required (electronics not included) |
| Compatibility | Works with SO-101-ARM-ELEC (SO-101 Leader Arm Electronics Kit) |
| Use Cases | Teleoperation control, educational demonstrations |