As a part of my diploma i created this robot. Consisting of two arms with two joints, the robot is capable of reaching every point in a 3.5m circle. The head of the arm is populated with a 4-spraygun head, filled with the basic printing colors CMYK. Thus making the robot a fully functional wall-printer. Graphics and manual commands can be sended via USB to the arm. For the exhibition I atached a microphone to the program and interpreted the signals to a graphic. The arm can move at diferent preset paths like circling with random radius or a spirograph-like shape with this setting.