Re: [ATM] at what stage do I start foucault testing?

["tony gondola" <acgna@comcast.net>]

Roman,

All you need for all stages of rough and fine grinding is a feeler gauge or 
spherometer. One of the biggest mistakes a beginner can make is to try and 
over aniline a process that they have no experience with. Do that and I 
guarantee you'll end up chasing your tail for no reason at all. If you use 
the standard recommended strokes and techniques you won't need to and really 
shouldn't drag out the testing hardware until the mirror is fully polished 
out.

Tony


----- Original Message ----- 
From: "Roman Toledo" <rtoledo2002@yahoo.com>
To: <atm@atmlist.net>
Sent: Tuesday, July 25, 2006 8:18 PM
Subject: [ATM] at what stage do I start foucault testing?


>          Sorry if this makes it twice to you, my emails and posts seem
> to be disappearing. I could sware I asked this here and on atm free
> groups but can not find it. could be I'm having a senior moment or
> yahoo.
>
>         At what stage do you start testing the mirror surface, besides
> the feeler gauge fashion and start using a foucaoult tester?
>
>       I just tried and can not see much, the room is very dimly lit,
> when I put on my red gogles and shine a laser at it it reflects back on
> the board of the foucault tester, I tried it with a flashlight and had
> poor results
>
> thank you.
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