i'm about to attempt to make one of these http://www.giphoscope.com/#!giphoscope/c1t44 . basically a hand cranked gif. i'm 3d printing most of it (because why not?). i'm fairly certain i've figured most of it out. the only thing i'm lacking is the actual GIF part.
in my brain, for this to work, it seems to that the images of the gif in question would have to be somewhat modified to get the frames correctly on the thing.
my assumption is that since they're folding the image across a bar/pin then the bottom half of each card would actually need to be the bottom half of the next frame? this is exceptionally close to breaking my brain. if anyone can take a look at the images/gifs of thier thing in action and let me know what you think