Acrobot Workshop bot
A small robot acrobat with four joints, made with 3D-printed parts and aluminium tubes and animated using Bottango.
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 Creative Commons Attribution 4.0 International · Software CC-BY-4.0. Licensing source
What’s open?
3 of 6CAD: AvailableBOM: PartialPCB: AvailableCode: AvailableSim: Not documentedGuide: Not documented
BOM partial · sim, guide not documented. All six files
Is it maintained?
Not documented
No activity snapshot yet. Activity
01 / Under the shell
The specifications.
Hardware, build and software on one sheet. Every fact links to where we found it.
The Acrobot Workshop bot is a small version of the Acrobot, described as a robot acrobat with 4 joints. Its body is made from two 3D-printed PLA halves, with TPU98A parts for the shoulders, hips, hands and feet; aluminium tubes are used for the arms and legs. The project uses Bottango for animation and includes 3D model files, schematics and PCB gerber files.
Hardware
- Actuators
- Not documented Documentation
- Build
- Mixed · PLA · 3D-printed parts and aluminium tubes Documentation
- Joints
- 4 README
- Arm and leg tubes
- 16mm aluminium tubes; recommended sizes are 190mm and 290mm README
Building it
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 | 3D model files, including STEP files, are in the repository. | Not documented | 3d_print/ |
| Bill of materials | Partial | The README lists required materials and some recommended parts. | Not documented | README.md |
| Electronics | Available | Schematics and PCB gerber files are in the repository. | Not documented | electronics/ |
| Code | Available | The repository includes the BottangoArduinoDriver. | Not documented | BottangoArduinoDriver/ |
| Simulation model | Not documented | Not documented | Not documented | No source found |
| Assembly guide | Not documented | Not documented | Not documented | No source found |
03 / Know before you build
Can you sell it?
Yes, with creditCommercial use OK, with credit
The whole repository, design files included, is Creative Commons Attribution 4.0 International. Commercial use is allowed if you credit the maker and keep the license notices.
- Hardware
- Creative Commons Attribution 4.0 International
- Software
- CC-BY-4.0
04 / The upstream project
Is it maintained?
Not documentedRepository activity is not documented
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 bipeds.
Other bipeds in the directory, most recently active first. Same sources, same rules.
| Robot | Cost | Open files | Can I sell it? | Runs on | Maintained | Stars |
|---|---|---|---|---|---|---|
| Acrobot Workshop botThis robotDaniel Simu | Not documented | 3 of 6 | Yes, with creditHW Creative Commons Attribution 4.0 International · SW CC-BY-4.0 | ESP32Arduino | Not documented | — |
| XGO-DuckLuwu Dynamics | Not documented | 4 of 6 | Check firstHW not documented · SW not documented | Arduino | ActiveOct 30, 2026 | 1,644 |
| Open Duck Mini v2Antoine Pirrone and contributors | Under $400full BOM | 3 of 6 | Check firstHW Apache-2.0 · SW Apache-2.0 main repo; runtime unlicensed | MuJoCoRaspberry Pi | ActiveSep 7, 2026 | 4,338 |
| LeRobot Humanoidhuggingface | Not documented | 4 of 6 | YesHW Apache-2.0 · SW Apache-2.0 | Raspberry PiPython | ActiveAug 27, 2026 | 40 |
| This robotAcrobot Workshop bot | XGO-Duck | Open Duck Mini v2 |
|---|---|---|
| Cost | ||
| Not documented | Not documented | Under $400 |
| Can I sell it? | ||
| Yes, with credit | Check first | Check first |
| Open files | ||
| 3 of 6 | 4 of 6 | 3 of 6 |
| Runs on | ||
| ESP32, Arduino | Arduino | MuJoCo, Raspberry Pi |
| Maintained | ||
| Not documented | ActiveOct 30, 2026 | ActiveSep 7, 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 9a2e5f4. Websites and papers are listed with their review dates.
- 01README.md at 9a2e5f4Reviewed Nov 1, 2026
- 02LICENSE at 9a2e5f4Reviewed Nov 1, 2026