[simpits-tech] More collimated display video...

[Gene Buckle]

On Sun, 21 Nov 2010, David C. Allen wrote:

> At 08:29 AM 11/21/2010 -0800, you wrote:
>
>> Pulling down the mirror for the first time:
>> http://www.youtube.com/watch?v=y67TAo9Lv5g
>
> Gene
> So how much vacuum is required to pull the mirror smooth?
>
No idea.  I didn't have a vacuum gauge to install on the rig.  I built a 
gate into the back of the enclosure that we've got open a tiny amount. 
With it completely closed, you can see the mylar come into contact with 
the edges of the outboard framework.  We backed it off just a tad to keep 
it out of contact with that.

g.



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