From: hermit 
To: Charles Polk 
CC: ATM List 
Reply-To: hermit 


Charles Polk wrote:
>
> Hello,
>
> I am working on a 12.5" f/5.6, 0.73" thick plate glass blank. The
> plaster tool is full sized with a tile face. TOT was used 100% for 20
> and 15 micron, just moving to 9 micron. During polishing, which is
> used, TOT or MOT?

Yes. ;-)

> I have read somewhere 100% MOT is used (?).
>
Well, you'll read a lot on the internet.  I would think with a thin mirror,
your best bet would be to to work with TOT.  Less chance of flexing the
mirror if it is on bottom and well supported.

Ken

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