3D-printed Fibonacci Zoetrope

John Edmark von der Uni Stanford druckt Bildertrommeln aus, und das ist noch das banalste daran:

FYYLRY1I05F5AR7.LARGEThese are 3-D printed sculptures designed to animate when spun under a strobe light. The placement of the appendages is determined by the same method nature uses in pinecones and sunflowers. The rotation speed is synchronized to the strobe so that one flash occurs every time the sculpture turns 137.5º — the golden angle. If you count the number of spiral on any of these sculptures you will find that they are always Fibonacci numbers.

For this video, rather than using a strobe, the camera was set to a very short shutter speed (1/4000 sec) in order to freeze the spinning sculpture.

Auf Instructables erklärt er, wie er die Dinger gebaut hat:

In designing the sculptures, I used essentially the same method employed by nature. I placed the appendages one-at-a-time starting from the top-center, positioning each appendage 137.5º around the center from the previous appendage and also a little further out and/or down. So when I animate these sculptures by spinning them with a strobe light (or video camera) I am, in a sense, recreating the process that I used to make them in the first place.

Blooming Zoetrope Sculptures by edmark (via DJ Food)