Has anyone considered building a master pyramorphix from a square-1 instead of a standard 3x3 cube? I don't have the skill to do it, but I thought I would pass the idea along to anyone who might like it.

How would that be possible?
Square one is deep-cut

Could clearly make a shape morphing tetrahedron from a Sq-1, maybe this is what was meant.

It would be a nuts puzzle! The middle slice needing 180deg turns would be interesting and what would it look like when configured as Sq-1 with all corners on one slice! Freaky ;-)

You would have some really weird shaped pieces.

Max

Yes.
I have a few ideas at the moment for the (I call it)tetrahedron (various cutting planes etc.).
I also have quite a few ideas at the moment, for Square 1 transformations, on paper, and in my head, partly due to the fact that I seem to be able to get Square 1's easily at present. It's time I seem to have problems getting.
I have recently finished a transformation that I intend showing on Twisty soon. It has been complimented by the few who have seen it.

i reckon it would be an awesome puzzle! maybe a bit hard to make... definiely hard to solve! (hard to visualise which pieces correspond to 'corners', etc. especially if it is made offcentre...

Your inventions are always very nice! QUICK!!!!!!!!!!!!!