Printer Contraption will Print Texts on Walls

I get lots of text messages, more than I would like really. I have received a few that had directions or other important details that I would like to print out. I wouldn't want to print them on the wall though like the printer contraption that designer Liat Segal has invented will do. It uses servos and markers to make the message in a series of dots and dashes as the user pulls it across the wall. It is a cool device, but very strange. The brains of the device is an Android smartphone. link