SO-101 Follower Arm Kit
A complete SO-101 follower arm in a single kit: the 3D-printed frame — including the compliant gripper and camera mount — plus its matched 12V electronics, so you get one fully buildable working arm without sourcing the parts separately.
The follower arm mimics a leader arm in teleoperation, or executes learned policies autonomously. This bundle pairs the follower frame with the correct 12V electronics — 6x Feetech STS3215 servos, a 12V power supply, a serial bus servo adapter, and all wiring — for the higher torque the gripper and task execution need.
What's Included:
- 1x Follower Arm Frame Kit (frame with compliant gripper + camera mount)
- 1x Follower Arm Electronics Kit (6x 12V servos, 12V PSU, controller, wiring)
Important: Leader and follower arms use different electronics (12V vs 7.4V). This is the FOLLOWER arm. For a full dual-arm teleoperation system, see the Complete Teleoperation Kit.
Perfect for:
- Single-arm autonomous manipulation and imitation-learning policies
- Dual-follower AI setups (buy two)
- Replacing or adding a follower arm to an existing setup
- Teleoperation builds (pair with a Leader Arm Kit)
No soldering required. Works with the open-source LeRobot software stack.
Low stock — order soon.
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.
What's in the box — each piece is also sold individually:
Open-Source Design
This kit is based on SO-ARM100 (LeRobot Project) by Hugging Face and LeRobot Community.
Key Features
- Complete single arm — frame and matched electronics in one kit
- Compliant gripper and camera mount for vision-based learning
- 6x 12V serial bus servos with higher torque for task execution
- 12V regulated power supply and serial bus servo adapter included
- All wiring and connectors included
- Compatible with the LeRobot software stack
- No soldering required
Technical Specifications
| SKU | SO-101-FOLLOWER-BUNDLE |
| Configuration | Complete single follower arm (frame + electronics) |
| Frame | 3D-printed PLA+ with compliant gripper and camera mount |
| Servos | 6x Feetech STS3215 Serial Bus Servos (12V) |
| Power Supply | 12V regulated power adapter |
| Controller | 1x Serial Bus Servo Adapter (USB-C to host) |
| Assembly | Assembly required (no soldering) |
| Arm Type | Follower (gripper / task execution) |
| Use Cases | Autonomous manipulation, teleoperation, imitation learning |