Niklas Roy hat mit dem Graffomat einen Plotter-Bot entworfen, der einfache Graffiti auf Wände malt und sich auch per Internet steuern lässt.
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.