The Holey Octahedron extends the family of hollow puzzles succeeding the Holey Megaminx (Tutt), Void Skewb (Fisher) and Void Cube (Okamoto). It is a variation on the standard 3x3x3 cube. It differs from the 3x3x3 in that the corners have completely been removed and center orientation is visible. Solving it is a little bit easier than a regular 3x3x3.
If you order this model, you will get a DIY kit of the plastic parts needed to make this puzzle. You will need to supply your own screws (M3), stickers and springs for assembly.
You can also order an assembled copy of this puzzle from me directly, but this option is more expensive and it will take longer to get your puzzle.
Shapeways has recently changed their pricing making this model much more expensive. I've not yet had the time to optimize this model to be as cheap as posible. Please contact me at firstname.lastname@example.org if you are interested in obtaining this puzzle so we can discuss cheaper options.