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From: <bp@www.zefox.net>
Newsgroups: rec.crafts.metalworking
Subject: Re: grind flat surface on rocks / granite
Date: Sat, 21 Sep 2024 16:31:28 -0000 (UTC)
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Jim Wilkins <muratlanne@gmail.com> wrote:
> 
> --------------------------------
> 
> Search for "gem faceting machine". 
> 

Probably everybody knows about Foundations of Mechanical Accuracy
by Wayne Moore. Just mentioning it for the record.... being the 
first thing that came to mind after reading the thread subject.

bob prohaska