grigorusha Hyperoid Cube (mini Void Octahedron in a big Void Cube)

grigr

I was inspired by the concept of the puzzle that Okamoto came up with - Kepler Cube. he showed the world a couple of photos 10 years ago and put off this project.
http://twistypuzzles.com/forum/viewtopic.php?f=15&t=16407

I decided to go further and made a more advanced mechanism: mini Void Octahedron in a big Void Cube!
I want to introduce you to my - Hyperoid Cube;) this strange name consists of two words Hypercube and Void Cube
I have so far made an version where two puzzles are not connected with each other - they can rotate completely independently of each other. but soon I will assemble a linked version.

Video: https://www.youtube.com/watch?v=03-bBIIM2PA