I have recently finished the design of a variable 3D Chess system
which will allow the construction of a wide range of games.
This includes 4x4x4, 5x5x5, 3x8x8 and 8x8x8. Also odd-shaped fields
like the ones used in Polyhedron Chess, Pyramid Chess and even ST3D
Chess(with hanging attack boards).
This will include fields which use square, hexagonal or triagonal
cells.
It will also include the ability to construct a wide range of playing
pieces.
Once I have constructed the prototype I will publish photos at this
site.
The various elements of the system will be made available so that a
player can obtain as little or as much as they require to construct
their desired games.