I’ve made a few drawing robots (I call them polargraphs because of the polar coordinates system that they use), using Arduinos, Adafruit motorshields and 12v stepper motors, and a Processing sketch. I’m using the v1.4 version of the accelstepper libraries that I was so excited to see you add motorshield compatibility to, when I was making my last project which was the linear clock on instructables so thank you very much for doing that, and of course for making the motorshield so good in the first place.
The machines hang a pen against a surface, in the mode of Hektor the spraycan robot, and I currently have a show on in the Framed Gallery here in Edinburgh. The show includes a installation of a six metre wide drawing machine installed in the gallery, and some smaller ones, and of course, some finished pieces. It opened last Friday 10th with a launch that went really well, and I sold a few pieces! And it’s on until this Friday 17th, and the giant one will be filling in a new section of it’s wall every day this week.
At the end of this week, I’ll be taking some bits of hardware down and presenting the build as part of Hack Circus, which is a part of Interesting 2011 – a little one-day conference in London on Saturday.
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