Can Your Really 3D Print a Working Robotic Lawnmower?

3D Printing & Imaging Arduino Digital Fabrication Robotics
Can Your Really 3D Print a Working Robotic Lawnmower?

csm_gruen-und-schwarz_2c446ae175It seems too good to be true, and it may be. German maker Andreas Haeuser, of RepRap Turbine, has posted a set of plans and design files (for sale) for a printable robotic lawnmower that uses almost exclusively 3D printed parts (which can be printed on any printer with a minimum build volume of 180mm x 180mm x 60mm) and an Arduino Uno and motor shield for its brain.

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Andreas explains:

The 3D printed Ardumower works on the same principle as its commercial counterparts, which can be bought for a lot of money at most hardware stores. It drives in the inner space of a “boundary wire fence” (BWF). If it comes close to this it stops, turns, and then it goes on mowing your lawn continuously. The Ardumower is well-tested for a lawn size up to 500m². If your lawn is bigger, you need a second battery or you should print a second Ardumower.

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The Ardumower is driven by two 12V geared motors. The cutting device is made from a 12V DC-motor and a cutter disc with a diameter of 220mm. The power comes from rechargeable 12V NiMH or 11,1V LiPo batteries.

Andreas claims the mower works well, has been thoroughly tested, and is a really fun project to print and assemble. I have my doubts about the battery life (among other things), but I love the very 21st century solution to that problem: “…print a second Ardumower.” In the end, I have a feeling this is more of an exciting proof of concept and a fun weekend printing and programming project than a mower you’re going to press into service every time the grass gets tall. The construction manual and print files are available for download for US$12.39. His site also features downloadable plans for a 3D printable wind turbine and a solar-powered Stirling engine.

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Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. His free weekly-ish maker tips newsletter can be found at garstipsandtools.com.

View more articles by Gareth Branwyn

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