Over at Street Tech, BB buddy (and old-school bOING bOING contributing editor) Gareth Branwyn explains how to build this beautiful twin-enginer solar-powered robot that rolls around on a pair of hard disk platters. The robot was designed by Zach DeBord who exhibits his elegant mechanical creations here on Flickr. DeBord's bots were all built using a design approach called BEAM (Biology, Electronics, Aesthetics, and Mechanics). In most BEAM robotics, simple analog circuits are used in lieu of microcontrollers, eliminating the need for programming. Gareth says, "If you built my beginner solarroller from the cover story in MAKE: Vol. 6, this could be a perfect follow-up project."
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