This is the Mini 4x4x4 Insides. This is how i first thought it worked before cracking one open. Is this horvath's mechanism?
I have 15 pics for you, taken for me by someone else.
If you are going to look at these alot, please save the pictures to your drive, as the server these are on has a 500mb upload limit. These arent on my regular we server

How studry is it? Does it turn as smoothly as a Mefferts master cube?

I was told by the owner that it is more precise than mefferts

Looking at Patent # US4540177 by Tibor Horvath, it looks quite different. In that patent he takes a spherical 2x2x2 mechanism, decorates the 6 intersections with 4 cubies each, then slips the rest of the cubies in the gaps.

You can view it at: http://l2.espacenet.com/dips/bnsviewer?CY=gb&LG=en&DB=EPD&PN=US4540177&ID=US+++4540177A1+I+
(page 6/11 is the important one).

I couldn't find another 4x4x4 mechanism patented by Horvath in the Delphion database.

The mechanism pictured in Tyler's posting is a modification of a 3x3x3 mechanism with the center caps and edges buried inside the puzzle. The distinction is subtle (most 2x2x2 mechanisms have a buried 3x3x3) but some of the differences are: much simpler core (solid 6-armed spider vs. overlapping shells); no projecting corner pieces in the new mechanism; Horvath's looks like it would hold together with the edges/corners removed, while the new one would fall apart.

Here are some thoughts.... Stupid, but they do constitute as thoughts.

the builder of this mini 4x4x4 only made it with this mechanism so the next step up would be a 6x6x6. It would probably be eaiser to make a 6x6x6 with this mechanism than the sphere.
Maybe andreas will have some 6x6 for us..
or maybe not.

Looks it.

Nice photos ...

Just a few days ago I have found an interesting puzzle patent and printed the pictures. “Alas, such a wonderful mechanism is not implemented into real puzzle” were my thoughts. I am happy to know I was wrong.