SO-101
The default LeRobot starter arm: a 5-DOF, 3D-printed arm with a gripper, driven by six Feetech STS3215 bus servos. Sold as follower or leader-plus-follower kits by several vendors.
Specs
- Type
- Arm
- Degrees of freedom
- 5
- Actuators
- Feetech
- Hardware license
- Apache-2.0
- Open hardware files
- Yes
- Motors
- 6× Feetech STS3215 (7.4 V or 12 V)
- Simulators
- MuJoCo, Genesis, ManiSkill
- LeRobot types
- so101_follower, so101_leader, bi_so_follower, bi_so_leader
- Docs quality
- 5 of 5 for the build guide, editor's rating
Price and where to get it
$121.94
Upstream US BOM estimate checked 2026-10-18 (the table has no price date): USD 121.94 for one SO-101 follower arm with six 7.4 V C001 servos. The separate leader-plus-follower BOM is USD 229.88 for two arms, not a single-arm upper price. Both tables exclude 3D printing, cameras and a host computer; shipping and taxes are unverified. These are source-table estimates, not current delivered kit quotes; prices vary by region.
KitAssembledDIY / print it
Sold by
Project
- Website
- github.com
- Source
- TheRobotStudio/SO-ARM100
- Docs
- huggingface.co
Activity
Fetched 2026-09-15. Dataset count is an approximate name match on the Hugging Face Hub, not a ground-truth tally.
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