Laser cut paper butterflies that flap their wings when you approach.
Biomimetic Butterflies was an installation by the barbarian group of butterflies laser cut out of paper. The installation combined laser cutting, the open source programming language Processing, open source Arduino hardware, and a Mac Mini with a webcam.
The wing patterns were designed with Processing using algorithmic design techniques. Essentially, the patterns are generated mathematically using random numbers within user-defined constraints. The barbarian group made five “families” of wing patterns using five types of algorithms–voronoi, flow lines, intersecting lines, cracking, and circle packing.
These patterns were then laser cut out of heavy drawing paper, connected in pairs with a fabric hinge, and pinned down after having tiny rare earth magnets attached to them. Hidden inside the pedestals are larger magnets attached to motors controlled by a central Arduino board.
Controlling the Arduino board is a Mac Mini with a web cam that “watches” the people viewing the installation. When people approach, the wings start to slowly flap. The motors inside the pedestals are very quiet and there are no mechanical parts showing, so the effect is somewhat surreal when viewers see these obviously fake butterflies flapping their wings with no discernible cause. Here’s a video of the butterflies in motion.
Overall, this is an impressive combination of digital manufacturing and open source computing seamlessly integrated with each other and the environment. Be sure to check out the barbarian group’s portfolio. They do marketing and web development using cutting edge technology and design our of New York City, San Fransisco, and Boston for a list of major companies.