Can a robot paint a canvas? Apparently the can. Check here.

The walls of the buildings are too high so this robot is mainly used to assist the artist and who are often under pressure to complete their projects quickly, now there is a way to transfer pre-designed images from a computer to an outdoor surface. Albert the robot utilizes a printhead that contains five cans of acetone-based spray paint, the same stuff used by graffiti artists. The robot functions just like a desktop printer, except the printhead moves along both X and Y axes, scaling walls with help from top-mounted guy-wires. It can produce pixels as small as one centimeter in diameter.

His solution combines a Wii controller and an engine valve from a car. The handheld device clips onto a can of spray paint and interfaces with a smartphone on a tripod. As the artist moves the spray can along a wall, the phone tells the device when to emit paint and in what volume. 

Albert, the larger robotic version of the handheld spray printer, moves with help from two overhead guy-wires. Drone propellers keep the robot pinned to the wall during painting.  Isn't this concept related to your to your Beginner Level and Expert Level? Yes right, so go ahead and build one to splash your wall!!

Source- ZDNet