Background
I wanted to do something special for this year’s office xmas party. Several people were playing with LEDs and it got me thinking about different ways to display an image. I quite liked the idea of a retro look and feel using electromechanical elements, but didn’t want to just replicate one of the more popular methods like flip discs. I thought about ways in which a colour could be revealed and eventually came up with a way using rotation to move one piece in front of another.”

Link