[ATM] Persistent turned-up-edge in mirror

[Jim Burrows]

At 2007-04-18 21:26 -0400, Bern Kosicki wrote:

>By "outer part", do you mean the largest radius of the mirror?  I usually
>start off with a fairly wet mixture of CeO and water, but have been running
>it to be fairly "dry" near the end of a wet, like Texerau
>recommends.  However, I don't let it get very  dry.  Motion gets pretty
>stiff at the end of a wet (which usually ends about 15-30 min after the
>last addition of CeO).

Hey, whole-mirror strokes aren't the way to attack TUE!  Go around 
the edge with a small tool (or your thumb).  "Three revolutions of 
the mirror is enough of this without testing to be sure the action is 
where it is wanted and not producing a ditch."  A.T.M. 2, p. 43, 1946.

         -- Jim Burrows
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         -- mailto:burrjaw at earthlink.net
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