Invented and drawn by Bob Knetzger

Breadboard Bots

AT MAKER FAIRE I PICKED UP SAMPLES of an amazing material called Sugru. It’s a patented silicone that’s easy to use and makes soft, strong parts. Knead it like putty, then shape it. In 24 hours it permanently sets. It grips tight and holds onto almost any clean surface, but it stays flexible and pliant. Perfect for mocking up elastomeric (rubbery) parts. It’s often used to effect quick repairs, reinforce stress relief on plugs and jacks, and make soft bumpers or grips.

I used it to create poseable electronic robots. The Sugru acts as a flexible joint and holds the parts ...

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