Hexaflexagon 3D-printed! Soo cool!
Thanks @Vi_Hart for the whole concept and thank you Whpthomas for the model: http://www.thingiverse.com/thing:141124
printed on @Ultimaker in Faberdashery Cyber Yellow (coooool colour!!!)!
I’m totally printing that right now.
I had to remix it to give 0.3mm distance in the hinges to make it work. The default 0.2 were too tight for me.
Cool! Any use for it?
Use for a hexaflexagon??? 
No not really. It is a mathematical toy.
Nice! The forms reminded me of this “Viel-Falter” (which is German for sth. like “Many Foldings”): http://www.vismath.eu/en/viel-falter/hologram
That model is crying out for a mid-print color change.