[SJAAboard] Scope 41 (18" Loaner)

Gary Mitchell wb6yru at aenet.net
Sat Feb 23 19:30:58 MST 2008


Rob Hawley wrote:

> It does not look like I will be able to rebuild this scope this summer.  I
> have removed my wait list.  The scope will go back into the available pool
> once Craig's loan expires.
> 
> I still think it important to test this mirror given the poor results from
> every mirror that has been tested so far. Gary did not have the proper mask
> with him on Thursday. I noticed the mirror was VERY dirty so I took it home
> and ordered some Collodion.  
> 
> If Gary could run the test next Tuesday night then I will bring the mirror
> to Houge. It will take a week or so for Collodion to arrive and I cannot do
> the cleaning until I can work outside

I'll need the exact diameter and focal length to generate the mask.
Printing a mask for an 18" mirror won't be easy, I'll have to print
parts of it on several pages and tape them together.  Do you have
a large format printer?

We should still be able to test it even if it's dirty.  Just rinse
it off, that should be good enough.

There's a school star party scheduled for Tuesday.  I will be going
to that, unless it's canceled.  If the weather is questionable, I
won't know until that afternoon.

Gary





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