3D Printed Mower Build Instructions - Overview

Sit back, relax and let the robot do the work. At the same time the grass becomes thick and lush due to the constant mowing. No more grass cuttings - sounds to good to be true..... and by the way you built it yourself...... A great talking point with friends as the mower travels past doing the work ūüėä



Fully autonomous robot lawn mower (now with Smartphone APP).  The mower project includes the mower itself a boundary wire control station, smartphone APP and an optional charging station.  The mower navigates within the boundary wire which is positioned (pinned) around the perimeter of the garden.  Once the mower senses the perimeter wire, it stops reverses and moves off in a new direction.  The mower also has 3 sonar sensors to detect objects in the mowers path.  Once the mowers battery is exhausted, the mower uses the boundary wire to navigate itself back to the charging station.  All this can be customised in the Arduino software or completely re-written to your personal preferences.

All these features can also be controlled via Smartphone and WiFi.

Commercial mowers with this specification cost upwards of 600‚ā¨ ($680).

Mower coverage 500-800m²

Online Articles writing about this project:

3DPrint.com      hackstaer.io       3d-grenzenlos.de       blogdot.tv

3dtoday.ru      Arduino Blog        hackster.io(2)        3ddruck.com

Build Difficulty: 7/10

Skills Required: 3D Printing, Arduino, Soldering electrical components

Equipment Required: 300x300x200 3D Print Bed (or print service), PLA Material, Soldering Iron, Multimeter, Computer/Laptop with Arduino Software (free), Various screwdrivers and Allen wrenches (M3), Wire strippers. 

3D Printer Options:

ReP_AL CORE XY 3D Printer

Upgraded TronXY X5S 3D Printer


3D Print Files: 

All STL and STEP files are available free of charge:

Lawn Mower: Click here for STL files or here for GITHUB
Charging Station: Click here for STL files
Perimeter Transmitter Housing: Click here for STL files
A 200mm printer bed version of the mower is now being developed and can be found here

3D Printed Parts: Available here in my shop if you dont have a 3D printer or your print bed is too small


Arduino Code: 

Free of charge and available on Github



As you can imagine this project took a lot of time to develop.  If you appreciate the free STL files, Instructions and Arduino Code and feel like leaving a monetary tip please use this link 





The build and circuit wiring of the project is explained in the following pages.  The original electrical components can be bought here in this shop individualy or as a package.  Using the original electrical components makes the build process easier and ensures smooth communication with the software:


I have also uploaded some test sketches in Github so you can test individual components and make sure they are working.  This simplifies the debug process enormously.


I am also available with any questions about the build:





See the Main menu for further instructions