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Let’s Make Robots user adam “MiddleCreekMerchants” claflin built this Caterpillar BEAM bot, which manages to crawl along the ground and follow light without the need for a microcontroller. I’ve seen many different kinds of Biology, Electronics, Aesthetics, and Mechanics (BEAM) robots before, but this multi-segmented version seems especially fascinating.

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In the Maker Shed:
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SolarSpeeder Kit
The SolarSpeeder was designed with ideas gathered from many years of Solarroller racing at the BEAM Robot games. You only need a soldering iron and basic hand tools to turn this high-quality coreless DC motor, lightweight body, and tweaked electronics into your own solar speed-demon.