Seeing the internet interact with the real world is one of my favorite things and this project is right up there with the best of them. With a little Arduino ingenuity, people can control this whiteboard plotter from the comfort of their own home or office. — Douglas
The Plotti Botti is an XY plotter attached to a whiteboard, which can be controlled by anyone via LetsRobot.tv.
When it's online, you can find the Plotti Botti here.
It was made using stepper motors with pulleys, a toothed belt, a Raspberry Pi, the Adafruit Motor HAT, a Pi Camera, a number of 3D-printed parts and googly eyes.
An interesting link found among my daily reading