From: "Frank Q" 
To: "Tom Stokes" 
Cc: 
Reply-To: "Frank Q" 


Hi Tom

How accurate are the 11 rpm and 25 rpm values that you quoted below ??

From what you described below, it sounds like the tool is tracing the same
path over the mirror all the time.

Could it be that you have 12 and 24 rpm or some other harmonically related
combination ??

Cheers

Frank Q




----- Original Message -----
From: "Tom Stokes" 
To: 
Cc: "atm" 
Sent: Tuesday, February 25, 2003 10:17 AM Subject: ATM CeO causing streaks


>
> I am figuring a 4.25" F6 Pyrex mirror with a (sort of) MOM 20.
> The TT speed is 11 rpm and the eccentric speed is 25 rpm.
> With Foucault, I see many faint streaks emanating from the edge of
> mirror and heading toward the center. They disappear at about
> the 50 percent zone. Sometimes they are curved much like the wake
> of a tool at work. I am thinking that the CeO is causing this since
> it is such an aggressive polishing agent. Anyone else experienced
> this? Should I stop until I get some rouge?
>
> Tom Stokes
> http://home.pacbell.net/tstokes shows my machine working or a 10".
>
>

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