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The drawing robots need little explanation: Bots that draw, how cool is that?
At the fair, artist and inspired tinkerer Samwell Freeman took up a controller with the warning, “This bot’s a little tentative.” Then he gave a demo of how to angle the controller to drive the remote-control bot forward, back, left, and right (the controller packs an accelerometer, just like an iPhone or a Wii controller). The bot is outfitted with a felt pen, and the press of a button on the controller lowers the pen’s tip to the paper. Soon Freeman’s bot was tracing wide green circles on the paper, tentative no more.
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