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re:Re: ATM %$^%##%!! Rings won't smooth

Another cause - you may have formed the rings if you used a relatively 
short stroke to get rid of the TDE. If so, lengthening your stroke to 
about 1/3 overhang may take care of the ring zones...

Howard Banich
----------------------[Reply - Original Message]----------------------

Sent by:Donald Clement <clement@cqt.com>
 Rich:
        Are the channels in your lap off center ? If your channels for
the lap are on center they might cause concentric rings.

Donald Clement

richas@pacbell.net wrote:

> I am polishing my second mirror a six inch.  I have it spherical and
> ridded it of a slight TDE.  I have concentric rings which I cannot
> polish out.

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Rich:
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Are the channels in your
lap off center ? If your channels for the lap are on center they might
cause concentric rings.

<P>Donald Clement
<BR>

<P>richas@pacbell.net wrote:
<BLOCKQUOTE TYPE=CITE>I am polishing my second mirror a six inch.&nbsp;
I have it spherical and
<BR>ridded it of a slight TDE.&nbsp; I have concentric rings which I 
cannot
<BR>polish out.</BLOCKQUOTE>
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