A zoetrope is a pre-cinematic animation technique where a series of animation frames are placed inside a spinning cylinder. Slits in the cylinder make the frames of the animation visible for only a fraction of the second creating an animation. My 3D zoetrope relies on the same principles but instead of flat 2D frames I am using 3D models and instead of the slits I use a strobing LED light to illuminate each frame for a fraction of a second. You can see a full write up and video of the zoetrope in action at: http://kellyegan.net/2014/09/19/3d-printed-zoetrope/