View Full Version : Building a zoetrope using Kinect, processing, and a laser cutter

March 20th, 2011, 01:30
A zoetrope is a device that contains a disk full with a series of images that make up and animation. A couple of different methods can be used to trick the eye into seeing a single animated image. In the past this was done by placing the images inside of a cylinder with slits at regular distances. When spun quickly, the slits appear to be stationary, with the images creating the animation. But the same effect can be accomplished using a strobe light.
The disk you see above uses the strobe method, but itís design and construction is what caught our eye. The animated shapes were captured with a Kinect and isolated using Processing (http://blog.makezine.com/archive/2011/03/making-a-laser-cut-zoetrope-with-processing-and-kinect.html). [Greg Borenstein] takes a depth movie recorded while someone danced in front of a Kinect. He ran it through a Processing sketch and was able to isolate a set of slides that where then turned into the objects seen above using a laser cutter.
You can watch a video of this particular zoetrope after the break. But weíve also embedded the Pixal 3D zoetrope clip which, although unrelated to this hack, is extremely interesting. Donít have a laser cutter to try this out yourself? You could always build a zoetrope that uses a printed disk (http://hackaday.com/2011/02/22/555-cartoons/).