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.

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Price	$30.00

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This is a waste of money

Review by Eric Bardawil

I spent weeks (WEEKS!!!!) on the paper faceting limits. I went through about 100 pages playing with snells laws to derive the simplified forms in the limits paper. I used symbolic package to come up with strange pavilion / crown angle pairs solving a series of equations I found in the paper faceting limits... I thought I would get some additional insight into the paper by paying 30 dollars. What a joke! Save your money, I'm pretty convinced I understand the paper better than the author!?! eh... just frustrated I payed 30 dollars to get absolutely nothing...