From a digital file to a real wall, no wallpaper required

5.9K views · 241 likes · Oct 27, 2026

Berlin sign workshop Heerlein Werbetechnik turns a digital file into graphics printed directly onto the wall instead of onto wallpaper. The machine, which appears to be a wallPen, is a German-built mobile UV printer that uses laser sensors to follow the wall's surface, cures its…