The Facadeprinter is a simple software controlled robot. It consists of a turn table with two axes and an air-pressure print head. The printer shoots the artwork from a distance dot by dot onto the chosen area. Using this method, inaccessible and uneven surfaces can be used for large scale prints. Artworks can be printed on buildings without costly scaffolding.

The Facadeprinter is a large scale communication tool. Print-aesthetic and method are notably different from conventional print and advertising techniques. Artworks are applied directly onto walls, like the drawings of a ‘magic pen’. At present, the maximum print distance is 12 meters, the maximum print height is around 8 meters. The shooting frequency is up to 5 dots per second.

(via Facade Printer)

See the gun show in action:

Would be interesting to see an army of printer soldiers attack (and enliven) the facades of abandoned buildings.