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I love this bicore with five “slavecores” caterpillar BEAM bot. It is a photovore (light-seeker) with two operating speeds and rechargeable Li-Ion batteries (via USB). The builder has an Etsy shop too where you can buy his bots.

Middle Creek Merchants Robot Page
Middlecreek Merchants Etsy Shop

Gareth Branwyn

Gareth Branwyn

Gareth Branwyn is a freelancer 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 for Boing Boing and WINK Books. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.