Re: [ATM] Re: Ball bearing for triangles

[=?Windows-1252?Q?Rapha=EBl_GUINAMARD?= <rguinamard@infonie.fr>]

> Your compliant edge supports seem good to me.  Question:  when you install
> the mirror in the cell...how do you know that when the mirror is at rest
on
> the edge supports...
When I install the mirror, I push it slightly against the piano wire
support.
>the edge supports are somewhere in the middle of their
> allowable range of flexure?...

I don't understand exactly your questions.

>how do you tell if the mirror has pushed the
> edge supports beyond their useful limit of flexure?

In fact, at the end of the laser collimation, and before the star test
"ultimate" collimation I have to move (just a little bit) the piano wire to
get rid of constraints. Otherwise I have a big amount of astigmatism due to
the piano wire.
In fact I'm not so happy of this piano wire because even when I move a
little
bit the piano wire, it's difficult to get rid of the astigmatism and I have
to move several time the piano wire. I think I'm going to upgrate on a
different lateral
support like this one : a caster (don't know if it's the correct translation
for the french "roulette") lateral support:
on a 32" with astatic cell :
http://www.atmlist.net/contrib/rguinamard-at-infonie-dot-fr/600f3.3/MyFutureLateralSupport%3f%3f%3f/globalDevant.JPG
detail :
http://www.atmlist.net/contrib/rguinamard-at-infonie-dot-fr/600f3.3/MyFutureLateralSupport%3f%3f%3f/RouletteCeinture.JPG
on a 16" (ccaster in wood) :
http://www.atmlist.net/contrib/rguinamard-at-infonie-dot-fr/600f3.3/MyFutureLateralSupport%3f%3f%3f/Support%20miroir%20%e0%20roulettes%204%20%28floue%29.JPG
http://www.atmlist.net/contrib/rguinamard-at-infonie-dot-fr/600f3.3/MyFutureLateralSupport%3f%3f%3f/Support%20miroir%20%e0%20roulettes%201.JPG
http://www.atmlist.net/contrib/rguinamard-at-infonie-dot-fr/600f3.3/MyFutureLateralSupport%3f%3f%3f/Support%20miroir%20%e0%20roulettes%202.JPG

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