This page always under construction
Tom' Original Gem Designs - a small collection of easy-to-cut designs
Tips and Techniques
Tom's Transfer - an optical method for aligning a stone after transfer
Polymetric Scintillator Upgrade - add a more accurate micrometer head for height adjustment, including depth of cut indicator.
How I Dop - NEW - Step by step tutorial on a hybrid wax-epoxy technique
Rough Loss Chart - Quickly calculate loss of yield if you have to cut out an internal flaw (or if you dop inaccurately)
BOG and the Fluorite SRB - BOG's solution to Bob Keller's puzzle
BOG and the Ringo Challenge - BOG's take on the Jim "Ringo" Perkins challenge
BOG and the USFG Competition - A modified version of BOG which lets you evaluate hex designs
Miscellaneous Interesting Stuff
How flat is BATT? - an inteferometric test shows how flat the BATT lap can polish
Best of Both Worlds - Spotted in France: A hybrid faceter that works like both a mast and platform machine...
Web page maintained by Tom Herbst. Last modified 04-Mar-2004