Polyhedra via Conway Operators in OpenSCAD

Conway operators allow a wide range of polyhedra to be generated as transformations of the Platonic solids. This openSCAD script implements all the operators + George Hart's propellor + few other additional functions, including one to generate a cutout shell used in the samples

The script uses language features [ concat, list comprehension, let() ] only available in versions since late 2014

The sample solids are
gD - the Catalan solid Pentagonal hexecontahedron
emD - modulated to create a cushion shape
ccD - Goldberg(0,4) modulated to create Piet Hein's superegg
tktI - Goldberg(3,3) ditto both with hexagons cutout
t10k10tD is a favourite of George Hart whose work is an inspiration

These objects were created with openSCAD scripts generated from the website

http://kitwallace.co.uk/3d/solid-index.xq

and I'm blogging about the project on tumblr http://kitwallace.tumblr.com/tagged/conway