[ATM] Re: Second Thoughts on Mirror Support

[burrjaw at earthlink.net (Jim Burrows)]

At 2004-02-04 20:03 -0500, Don D'Egidio wrote:

>  I didn't want to start a 'you can't do that, or you can't do this' kind 
> of discussion. The mirror in my Discovery TD shows no problems with being 
> RTV'd in place.
> > You got it!! RTVing an optic is a terrible thing to do.
> >
> > "IMHO gluing a mirror to a solid substrate having
> > a different CTE is asking for trouble. Mounting a
> > commercial scope this way is just a way to save $."

Soon to be available on the ATM list!  Webcam Hartmann which will test your 
mirror+cell (or RTV, whatever) at various tilt angles.

         -- Jim Burrows
         -- mailto://burrjaw@earthlink.net
         -- http://home.earthlink.net/~burrjaw
         -- Seattle N47.4723 W122.3662 (WGS84)