Description ANGLE CHOICES BY JIM PERKINS
An illustrated guide to understanding how to build good gemcad diagrams using angle choices from "faceting limits" and what "facet designer" ray traces show us. by Jim Perkins. Contains 33 pages. Please note this is not for a beginner. This is a downloadable product. No actual book will be shipped. Only registered customers can download. This will not work for guest checkouts, you must register to download*. Do not share or distribute - Copyright Jim Perkins.