6mm substrate layers with Formica HPL on either side, bound together with a couple of rods running through and held apart with 6mm spacers. For each colour, pieces are laid out on a pre-laminated sheet and cut with laser or CNC. Pieces are assembled together using both a jig and rods running through pre-drilled holes.
Lights to emit through ‘eye’s and gaps between Formica HPL. Low voltage LED light. The entire fitting to float off floor to allow light to leak through the gap at the bottom.