You shouldn't believe your eyes! “Slow dance” is a picture frame that makes real objects appear to move in slow motion. By taking advantage of the limits of human visual perception, this optical illusion sculpture appears to be doing the impossible — right before your eyes.

Some useful links:

Link to the original sellers page:

http://www.cubic-print.com/TimeFrame

The software/drawings on Github

https://github.com/cubic-print/timeframe

An instructable (done with an older version of the board)

https://www.instructables.com/member/cubic-print/

Youtube electronics assembly video:

https://www.youtube.com/watch?v=nGYIRUd3NMk

Building the frame:

https://www.youtube.com/watch?v=mn2M9Y0cVf8

Winding the coil:

https://www.youtube.com/watch?v=nQHgtN8wdYc