Autonomous Zero-Turn Retrofit Kit
A self-driving zero-turn mower retrofit with parametric CAD, printable brackets and mounts, and control software for an iPad.
Project documentation
Before you build
Five answers, each linked to its source
What does it cost?
About $1,644functional build
The functional build is stated as approximately $1,644. README
Can I sell what I build?
YesCommercial use OK
Hardware MIT · Software not documented. Licensing source
What’s open?
5 of 6CAD: AvailableBOM: AvailablePCB: AvailableCode: AvailableSim: Not documentedGuide: Available
Sim not documented. All six files
What does it run on?
ArduinoESP32Raspberry PiPython
Simulation: Not documented. Software
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.
This project retrofits a seated zero-turn mower as a self-driving, iPad-controlled robot using RTK GPS, LiDAR, cameras and on-device AI. The repository provides parametric OpenSCAD parts and print-ready files, plus software, firmware and build documentation. The design is intended to adapt to different zero-turn mowers by measuring their dimensions; the physical build is in progress.
Hardware
- Actuators
- Not documented Documentation
- Build
- 3D-printed · ASA or PETG Documentation
- Reference mower envelope
- 1968 × 1610 × 1039 mm README
- Reference mower deck
- 1321 mm README
- Reference mower curb weight
- 615 lb (279 kg) README
Building it
Software & simulation
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 | Parametric OpenSCAD files and print-ready parts. | Not documented | cad/ |
| Bill of materials | Available | Bill of materials. | Not documented | BOM.md |
| Electronics | Available | KiCad project with Gerbers ready for review. | MIT | kicad/ |
| Code | Available | Control software and firmware files. | Not documented | software/ |
| Simulation model | Not documented | Not documented | Not documented | No source found |
| Assembly guide | Available | Build manual with phased build sequence. | Not documented | 00-BUILD-MANUAL.md |
03 / Know before you build
Can you sell it?
YesCommercial use OK
The hardware design is MIT. You can build, modify and sell robots based on it, as long as you keep the license notices.
- Hardware
- MIT
- Software
- Not documented
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
About $1,644
functional build
The functional build is stated as approximately $1,644.
READMEKit availability is not documented in our reviewed sources.
06 / Side by side
Compare with other rovers.
Closest documented maker’s cost first, then the most recently active rovers. Same sources, same rules.
| Robot | Cost | Open files | Can I sell it? | Runs on | Maintained | Stars |
|---|---|---|---|---|---|---|
| Autonomous Zero-Turn Retrofit KitThis robotZoheb Alvi | About $1,644functional build | 5 of 6 | YesHW MIT · SW not documented | ArduinoESP32Raspberry Pi | Not documented | — |
| JPL Open Source RoverNASA Jet Propulsion Laboratory | About $1,600full build | 6 of 6 | YesHW Apache-2.0 · SW Apache-2.0 | ROS 2GazeboRaspberry Pi | ActiveOct 20, 2026 | 9,723 |
| Sawppy the RoverRoger-random | $500project budget | 4 of 6 | YesHW MIT · SW MIT | ArduinoROS 1ROS 2 | Not documented | — |
| ArlokSettorezero | Not documented | 4 of 6 | Check firstHW not documented · SW not documented | Arduino | ActiveOct 26, 2026 | 24 |
| This robotAutonomous Zero-Turn Retrofit Kit | JPL Open Source Rover | Sawppy the Rover |
|---|---|---|
| Cost | ||
| About $1,644 | About $1,600 | $500 |
| Can I sell it? | ||
| Yes | Yes | Yes |
| Open files | ||
| 5 of 6 | 6 of 6 | 4 of 6 |
| Runs on | ||
| Arduino, ESP32, Raspberry Pi, Python | ROS 2, Gazebo, Raspberry Pi | Arduino, ROS 1, ROS 2, Raspberry Pi |
| Maintained | ||
| Not documented | ActiveOct 20, 2026 | Not documented |
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 5b9e0df. Websites and papers are listed with their review dates.
- 01README.md at 5b9e0dfReviewed Oct 31, 2026
- 02LICENSE at 5b9e0dfReviewed Oct 31, 2026
- 03cart/BOM.md at 5b9e0dfReviewed Oct 31, 2026
- 04docs/00-BUILD-MANUAL.md at 5b9e0dfReviewed Oct 31, 2026