Re: [ATM] Use of bearings in (static) mirror cells

["Olivier Biot" <olivier.biot@versateladsl.be>]

Dale,

Now this is what I call a nice mirror cell :)

How did you compute the flex hinges? And how did you assemble them? Did you 
solder a pivot axis, or is the flex hinge fixed to the square Aluminum 
profile(no rotational freedom)?

I really love this cell!

Best regards,

Olivier
----- Original Message ----- 
From: Dale Eason

> Take a look at my web page and look at my mirror cell.
> http://home.comcast.net/~doeason/16inchscope.html
> You really can't see how I hinged the two supports
> that provide colimation, but they are flex hinges.
> Two piceses of brass shim stock crossed in an X when
> viewed edge on.  Don Clement should be proud.  Also
> follow the link on my page to Nils Olaf Carlin's
> description of his mirror cell.  Mine is derived from
> his.  He does not use flex hinges but at least you can
> see where my hinges might be.
>
> If anyone is interested let me know and I will try to
> get better pictures.  The hinge design was taken from
> plans I found on the net for a seismograph pendulum.
>
> Dale Eason 


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