OpenArmory

SO-100

by The Robot StudioArmLeRobot: officialDraft

Previous revision of the SO-ARM design. Same servos and price class as the SO-101; the SO-101 improves wrist wiring and leader gearing, so new builds should start there.

Specs

Type
Arm
Degrees of freedom
5
Actuators
Feetech
Hardware license
Apache-2.0
Open hardware files
Yes
Motors
  • 6× Feetech STS3215
Simulators
MuJoCo
LeRobot types
so100_follower, so100_leader
Docs quality
4 of 5 for the build guide, editor's rating

Price and where to get it

$122–$230

KitDIY / print it

Sold by

Project

Activity

GitHub stars7.5kshared repo, see so-101
Forks685
Last pushThis month2026-09-06
HF datasets3.5kmatching “so100”

Fetched 2026-09-15. Dataset count is an approximate name match on the Hugging Face Hub, not a ground-truth tally.

leader-follower3d-printedsuperseded

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