We made an Easter video that may be suitable for Adafruit Blog. Video shows various mathematically generated patterns that are drawn on eggs using a robot (EggBot) and then animated by stroboscopic effect. Last year we did something similar. EggBot was drawing various mathematically generated patterns (https://youtu.be/V7GE2nBO4cw). They were inspired by equations describing Spirograph and harmonograph. The video was quite popular so we decided to take it a bit further this year. The patterns are now calculated in such a way that when rotated under a stroboscopic light of suitable frequency or when recorded by a camera, they start to animate. It is kind of zoetrope. Eggs were painted using EggBot (designed by Bruce Shapiro as open hardware and available as a kit from http://www.evilmadscientist.com/). To draw on eggs, we used standard permanent markers and an electro kistka with bee wax followed by dying. Eggs are rotated at a constant speed, special for each pattern, by a brushless motor. No computer graphics tricks are used in the video.
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