Created by two Swiss researchers, Hektor could possibly be the world’s largest portable inkjet printer.
“…the printer…converts small computer created images into huge facsimilies that it recreates with cans of spray paint. Hektor can be mounted on any wall and the spray can at its heart is moved with two independently controllable pulleys. “
There is a short movie of Hektor in action on their Web site. (The page looks like it’s under construction, but one of the icons will link to the video. The first minute is a little boring, but give it a chance as it’s pretty cool when the thing starts spraying.)