Re: ATM QUESTIONS on mirror kit

[Bill & Tracy Marriott <btk@pacbell.net>]

> 
> Help!
> I have two glass blanks that came in a kit from Newport Glass.  One is
> Pyrex.  Does Pyrex have a green color?  The other has no tint.  The green
> blank has concentric rings cut into it.  Is this for added grip?  I think
> my E mail to NGW got lost.  I have a grinding post made, mounted the
> blank, studied part of the book and need a few bits of info to help the
> process along.
> 
> Thanks,
> Paul Ashley
> Bell High School (LA area)
> Cerritos College
> E mail is pashley@bell.k12.ca.us

Paul:

Typically, plate glass has a distinct green color, though not always.
The concentric grooves may be cut in the tool to help grit distribution.
If you check out this ATM list, you will see that many people use tiles,
grooves, and other methods of building tools, to allow this.

Good luck in your venture, and remember this list, and other Internet
resources, can offer a lot of help if you get stuck

 BTW, Pyrex is not know for being colorless though.

I'd try calling them, NGW is not always known for prompt customer
service. 

-- 
Bill Marriott
Woodacre, Ca. USA
btk@pacbell.net

http://www.starlightoptical.com
Optical/ATM projects

http://www.starlightoptical.com/marriott
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