Curvy Cube Redux

A customizable artsy, geometricky box / cube.

This started as a sketch on paper just drawing curves on the faces of a cube and seeing how they could combine together continously. I found three ways to do it, which split the cube into two identical halves and decided to model them in 3D.

Curve type 1 has a quarter circle on each face.
Curve type 2 has a half circle on each face(well, 4 of the 6 faces anyways)
Curve type 3 has 3/4 circle on each face.

All styles take two identical pi