skewb rotating corner alternatives

These are alternative components to mix with the first Skewb design.

There is a replacement fixed corner with total surface and CAP piece, that replaces the original fixed corner and (prism-shaped) cap and (print each 4 times).

EDIT: removed new core design, where the bolts go from the inside to the outside, with nuts on the outside. This is superseded by thing ... (my newest remix) to recreate this setup in "twisty puzzle n-sided spider core", use
Counterscrews=1
Lc=11mm
oD=21mm
iD