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Re: ATM polishing

To: atm@shore.net
Subject: Re: ATM polishing
From: Mike Coslo <mjc5@psu.edu>
Date: Thu, 01 Jan 2004 18:08:01 -0500
In-Reply-To: <000a01c3d0a8$93aedea0$7d3758db@co.nz>
References: <000a01c3d0a8$93aedea0$7d3758db@co.nz>
Reply-To: Mike Coslo <mjc5@psu.edu>
Sender: owner-atm@shore.net
User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax)


Darryl Wilson wrote:

> Hi , Im working on my first 8 inch mirror, and have spent about 10 hrs 
> polishing with a pitch lap and CeO. A four millimetre ring around the 
> edge of the mirror does not seem to be polishing out, . Could 
> anyone suggest a strategy to remedy this, without of course going back 
> to fine grinding.
> Regards
> Darryl Wilson

    Unless you have a terribly rolled edge, I would bet you are 
polishing too lightly.

    Are you using a lot of CeO?
    Are you using a lot of pressure?

    - Mike -

References:
- ATM polishing
  - From: "Darryl Wilson" <stimpyssnotpad@xtra.co.nz>

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