German robotic artist Niklas Roy (previously) created the Graffomat, an amazing automated spray can plotter robot that creates simple graffiti designs onto a wall using an X-Y axis running on a servo motor.
The construction follows a classic XY structure. The X-axis consists of 2 aluminum tubes on which two short PVC electric tubes slide, to which the spray can holder is attached. The can holder is pulled back and forth by a clothesline that runs over two pulleys, one of which is driven by a cordless screwdriver. The nozzle of the spray can is operated by a lever from a model-making servo motor.
The Graffomat can also be used in real-time over the internet.
Roy partnered with Carolina Romano to animate the function of this fun, automated graffiti machine.
Animation test with Graffomat / Spray can CNC plotter
via The Awesomer