Laird's 2 Color OpenSCAD Chess Set

Inspired by the Replicator I've reworked my chess set OpenSCAD code to generate either a one-color or a two-color version of my chess set. I haven't printed it in two colors, so consider it a 'work in progress' until someone prints it.

The pieces illustrate how they move. For example, on the pawn the sphere is the current position, and the cubes are located where the pawn can move forward or diagonally to capture. Pieces that move to specific locations use cubes to mark locations, and pieces