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The fine folks at Solarbotics have put up another Instructable on how to build a cool BEAMbot, this time, a cranked-up Symet that spins like a maniac and can go to the mat against other bots. It’s robot sumo meets the BEAM Jurassic park.

Solar-powered Battle Symet


Gareth Branwyn

Gareth Branwyn is a freelancer writer and the former Editorial Director of Maker Media. He is the author or editor of a dozen books on technology, DIY, and geek culture, including the first book about the web (Mosaic Quick Tour) and the Absolute Beginner’s Guide to Building Robots. He is currently working on a best-of collection of his writing, called Borg Like Me.



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