Flip Book Animations On The Inside Of 3D Prints [Hackaday]
![partially finished print, with the embedded animation](https://i0.wp.com/hackaday.com/wp-content/uploads/2022/05/embedded-3d-print-feature.png?resize=800%2C450&ssl=1)
We’ve all seen 3D printed zoetropes, and drawn flip book animations in the corner of notebooks. The shifting, fluid shape of the layers forming on a 3D printer is satisfying. And we all know the joy of hidden, nested objects.
Hackaday alumnus [Caleb Kraft] has a few art pieces that all reflect all these. He’s been making animations by recording a 3D printer. The interesting bit is that his print is made of two objects. An outer one with normal infill that gives a solid form, and a layer cake like inner one with solid infill. It’s documented in this video on YouTube.
![CAD model of the stack of frames](https://i0.wp.com/hackaday.com/wp-content/uploads/2022/05/embedded-3d-print-body.png?resize=400%2C245&ssl=1)
There are lots of things to get right. The outer object needs to print without supports. The thickness of the “layer cake” layers determines the frame rate. I had to wonder how he triggered the shutter when the head wasn’t in the way.
His first, experimental, piece is the classic ‘bouncing ball’ animation, inside a ball, and his mature piece is Eadward Muybridge’s “The Horse, In Motion” inside a movie camera .
We’ve covered [Caleb Kraft] before, of course. His Moon On A Budget piece is wonderful. And we’ve covered a number of 3D printer animations. and 3D zoetropes. We particularly were drawn to this one.
Thanks [jmc] for the tip!