Robonine Labs · SO-ARM101 Black & White edition
A black leader arm, a white follower arm with a camera, the objects to practise on and an ArUco cube for the vision modules — with free access to Robonine Lab, where you assemble, calibrate and drive the arms from the browser.
$349 Free standard shipping worldwide · import duty estimated at checkout
See it move
You move the leader arm and the follower repeats it. That is the difference from a construction set: the motion can be recorded and replayed, and the recordings are the dataset you train a model on later.
This edition
The same open SO-ARM101 design, the same servos — and the things you would otherwise print, buy or improvise before the first lesson.
The leader is black, the follower is white. On camera, in a classroom and in your recordings you always know which arm is which.
A red cube, an orange cylinder, a yellow cone and a hex nut — the shapes the pick-and-place and vision modules use, so the first lessons start without a trip to the shop.
A fiducial marker on every face. Pose estimation, tracking and marker-guided grasping work with the camera on the follower arm from day one.
Servo cables that match the frame, and a printed step-by-step assembly booklet with a QR code into Robonine Lab. Building the arms is the first module.
Specification
| Degrees of freedom | 5 + gripper |
|---|---|
| Configuration | Leader–follower pair: the leader in black, the follower in white |
| Servos | 12 Feetech STS3215 / ST3215 serial-bus servos — six per arm: J1–J5 for the joints, J6 for the gripper |
| Materials | Mechanical parts printed in PLA+ — black for the leader, white for the follower |
| Gripper | Single-Jaw Rotating Gripper, driven by the J6 servo |
| Camera | USB camera module on the follower arm, included |
| Training objects | Red cube, orange cylinder, yellow cone, hex nut, and a cube with ArUco markers on every face |
| Connection | USB to your computer; Bluetooth and WebRTC through Robonine Lab |
| Power | 12 V adapter for the follower, 5 V adapter for the leader — both included |
| Software | Robonine Lab in the browser · LeRobot (Hugging Face) drop-in · Python 3 · ROS2 |
| Openness | Open BOM, firmware and 3D models |
| Mounting | Four C-clamps, included — the arms clamp to the edge of a desk |
| Calibration | Required once, after assembly — a guided module in Robonine Lab |
The hardware
Ships unassembled from our warehouse in China. Standard shipping is free; the checkout shows the delivery time for your country before you pay.
Up close
Photographed as packed. The servos come in their own boxes; the printed parts are finished and ready to bolt together.
First session
Pick-and-place with the training objects, a few minutes after connecting the arms. The camera on the follower is what the vision modules use next.
Robonine Lab
Every kit comes with access to Robonine Lab, a browser platform: connect the arms over USB, Bluetooth or WebRTC and work through twelve modules — assembly, calibration, teleoperation, pick-and-place, computer vision, ArUco tracking, neural-network recognition and a final project. The tools you need along the way live in the same window.
Price
Everything on this page is in the box.
Black & White edition
$349
Book a free 30-min call before you buy
Ships from our warehouse in China; the delivery time for your country is shown at checkout.
FAQ
Same SO-ARM101 arms, same servos, same open design. This edition ships the leader in black and the follower in white, adds the training objects and the ArUco cube, uses black servo cables, and includes access to Robonine Lab.
Go to lab.robonine.com and sign in with Google, GitHub or your email. Access is included with the kit at no extra charge; the first module is the assembly you are about to do.
Yes. SO-ARM101 is part of the open SO-100/SO-101 ecosystem and works with the Hugging Face LeRobot workflows as they are — teleoperation, recording demonstrations, training and running policies.
An evening with the hex keys and the screwdriver in the box. The printed booklet and the first Lab module go step by step; no soldering and no machining are involved.
Import duty and VAT are charged by your country’s customs, not by us. The checkout shows an estimate for your country before you pay, and the courier collects the actual amount on delivery.
The kit ships from our warehouse in China. Standard shipping is free to every country; the checkout shows the delivery time for your address and an express option before you pay. An unopened kit can be returned within 14 days of receipt for a full refund.
International bank cards — Visa, Mastercard and more. Payment happens on a secure payment page.
The servos are standard Feetech STS3215 units on a serial bus, so a single one can be replaced without touching the rest of the arm. Write to us and we will help you work out which one it is.
Buy or ask
Compatibility, spare parts, the platform — write and we will answer.
Or write to us directly: hello@robonine.com
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