reBot Arm Base Series
A two-model robotic-arm project with public STEP design files and BOMs for the B601-DM and B601-RS.
Project documentation
Before you build
Five answers, each linked to its source
What does it cost?
Not documented
No cost in the reviewed sources.
Can I sell what I build?
Yes, with creditCommercial use OK, with credit
Hardware CERN-OHL-W-2.0 · Software Apache-2.0. Licensing source
What’s open?
4 of 6CAD: AvailableBOM: AvailablePCB: Not documentedCode: PartialSim: AvailableGuide: Available
Code partial · PCB not documented. All six files
What does it run on?
Is it maintained?
Active
Latest activity Oct 30, 2026 · main repo last commit Oct 30, 2026 · 293 commits in the last 52 weeks · 21 contributors Activity
01 / Under the shell
The specifications.
Hardware, build and software on one sheet. Every fact links to where we found it.
The reBot Arm Base Series comprises the B601-DM and B601-RS robotic arms, with STEP design files for sheet-metal and 3D-printed parts and a BOM. The arms are designed for desktop Embodied AI applications; each model is listed with six degrees of freedom plus a gripper.
Hardware
- Actuators
- Not documented Documentation
- Build
- Mixed · 3D-printed parts and sheet-metal parts Documentation
- B601-DM payload
- 1.5 kg README
- B601-RS payload
- 2.5 kg README
- B601-DM maximum reach
- 767 mm README
- B601-RS maximum reach
- 754 mm README
- Degrees of freedom
- 6 DOF + 1 Gripper README
Building it
Not documented.
02 / The files behind the robot
What’s open.
Six parts of the build, each checked separately. Gaps stay visible.
| Part | Status | What’s there | License | Source |
|---|---|---|---|---|
| CAD | Available | STEP design files for the arm parts. | Not documented | hardware/ |
| Bill of materials | Available | BOMs are listed for the B601-DM and B601-RS. | Not documented | readme.md |
| Electronics | Not documented | Not documented | Not documented | No source found |
| Code | Partial | A linked repository for reBot Arm control software. | Not documented | github.com |
| Simulation model | Available | Browser-based MuJoCo digital twin for the B601-RS. | Not documented | README |
| Assembly guide | Available | Getting-started page with assembly steps and video. | Not documented | wiki.seeedstudio.com |
03 / Know before you build
Can you sell it?
Yes, with creditCommercial use OK, with credit
The hardware design is CERN-OHL-W-2.0. The code is Apache-2.0. Commercial use is allowed if you keep the maker’s copyright and license notices. Changes you distribute to the licensed files must stay under the same license; other parts combined with them may use other terms.
- Hardware
- CERN-OHL-W-2.0
- Software
- Apache-2.0
04 / The upstream project
Is it maintained?
ActiveLatest activity Oct 30, 2026, 0 days before the snapshot
The main repository’s last commit was Oct 30, 2026.
- Stars
- 4,628
- Forks
- 469
- Contributors
- 21
- Latest release
- None recorded
Snapshot captured Oct 30, 2026. Recorded figures, not live metrics. Active: activity within 90 days of the snapshot. Quiet: within a year. Dormant: longer.
05 / Parts & kits
A head start.
Maker-listed sellers only. No affiliate links or paid placement.
MAKER’S COST
Not documented
No cost in the reviewed sources.
Kit availability is not documented in our reviewed sources.
06 / Side by side
Compare with other arms.
Other arms in the directory, most recently active first. Same sources, same rules.
| Robot | Cost | Open files | Can I sell it? | Runs on | Maintained | Stars |
|---|---|---|---|---|---|---|
| reBot Arm Base SeriesThis robotSeeed-Projects | Not documented | 4 of 6 | Yes, with creditHW CERN-OHL-W-2.0 · SW Apache-2.0 | ROS 1ROS 2LeRobot | ActiveOct 30, 2026 | 4,628 |
| Star Arm 102Fashion Star | Not documented | 5 of 6 | Check firstHW not documented · SW not documented | LeRobotROS 2Python | ActiveOct 30, 2026 | 60 |
| SO-ARM 102Robonine | Not documented | 4 of 6 | YesHW CERN-OHL-P-2.0 · SW Apache-2.0 | LeRobot | ActiveOct 29, 2026 | 175 |
| Mini-ArmJonathan Shulgach | About $82Basic build | 5 of 6 | YesHW MPL-2.0 · SW Mozilla Public License 2.0 | ROS 2Raspberry PiPython | ActiveOct 23, 2026 | 14 |
| This robotreBot Arm Base Series | Star Arm 102 | SO-ARM 102 |
|---|---|---|
| Cost | ||
| Not documented | Not documented | Not documented |
| Can I sell it? | ||
| Yes, with credit | Check first | Yes |
| Open files | ||
| 4 of 6 | 5 of 6 | 4 of 6 |
| Runs on | ||
| ROS 1, ROS 2, LeRobot, Isaac, Python | LeRobot, ROS 2, Python | LeRobot |
| Maintained | ||
| ActiveOct 30, 2026 | ActiveOct 30, 2026 | ActiveOct 29, 2026 |
Upkeep is measured against each robot’s own snapshot. Costs keep the maker’s scope, so check what each figure covers.
See them in the table07 / Follow the evidence
Open books.
Repository files are pinned to commit 4dc330c. Websites and papers are listed with their review dates.
- 01README.md at 4dc330cReviewed Oct 30, 2026
- 02LICENSE at 4dc330cReviewed Oct 30, 2026