SO-101 follower arm for LeRobot
Kit or assembled. 12 V or 7.4 V servos. Printed parts included. Ships from Budapest to the EU, VAT included.
From Budapest, 2–7 days. Priced from your address at checkout: Hungary €5 · most of the EU €15 · rest of the EU €20.
Assembled arm
- Six STS3215 servos, 12 V, 30 kg·cm, plus the printed parts, driver board, cables, screws and table clamp
- Built here. Each joint moved through its range before it is packed
- A mains supply is not in the box. A camera and a leader arm are separate
14-day right of withdrawal after delivery. Returns and refunds.
Which one to buy
| Version | Servos | Price |
|---|---|---|
| Kit, 7.4 V | 6 × STS3215, 19.5 kg·cm | €279 |
| Kit, 12 V | 6 × STS3215, 30 kg·cm | €299 |
| Assembled, 7.4 V | 6 × STS3215, 19.5 kg·cm | €349 |
| Assembled, 12 V | 6 × STS3215, 30 kg·cm | €369 |
Kit or assembled. Same parts. The kit has the printed parts in the box, so you print nothing and solder nothing — plan an evening with the Hugging Face assembly guide. The assembled arm is built here and each joint is moved through its range before we pack it.
7.4 V or 12 V. The 12 V servos give 30 kg·cm, the 7.4 V servos 19.5 kg·cm. Choose 12 V for heavier objects and work at full reach. Use a power supply with the same voltage as the servos.
More detail: SO-101: kit or assembled, 7.4 V or 12 V.
What is in the box
Six STS3215 servos, the printed parts, the driver board, cables, screws and a table clamp. Not in the box: a mains power supply, a camera and a leader arm.
Works with LeRobot
This is the standard SO-101 follower. LeRobot drives it as
so101_follower, with its own calibrate, teleoperate, record and train
commands. You run the calibration once on your computer. To record
demonstrations by hand you also need an SO-101 leader arm.
Step by step: Getting started with the SO-101 and LeRobot.
Shipping and VAT
| To | Carrier | Price | Transit |
|---|---|---|---|
| Hungary | GLS or Foxpost | €5 | 2–7 days |
| Most of Europe | GLS or DPD | €15 | 2–7 days |
| Rest of the EU | GLS or DPD | €20 | 2–7 days |
We ship from Budapest, inside the EU only, so there is no customs step. Prices include VAT. A university, lab or company outside Hungary can use Invoice an institution above: with a VAT number, the invoice has no VAT.
The K0
Komatachi K0
Two arms. It drives around your home. Ships autumn 2026.
Reserve the K0Ships in the EU only. Cancel within 14 days of delivery. Two-year guarantee — terms · refunds · brand · hello@komatachi.com