Re: ATM large thin mirror grinding with tiles

["Bill T." <twentiethwave@hotmail.com>]

If you're only going to use the tool for 1 or 2  pre-genned mirrors, you can 
speed full contact by using sparse tile coverage.  Such tools grind down 
fast, and reach full contact quickly.

Tools like the one in the picture wear down less than 2mm to go through 220 
grit, 25 micron, 9 micron - most of that wear occurs at 220 grit.  I have 
used much sparser tools with equal success.  The old picture shows tiles 
that are dug-out from the grout, but now I just let normal wear-down from 
the grits open up the channels.  An advantage of sparse coverage is that 
slurry flow is very efficient.

http://www.kupercontrols.com/tt002.jpg

Bill T.

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