Re: ATM 6" Dob: How Easy? How Cheap? How Heavy?

[Sjoplinh@aol.com]

In a message dated 98-07-22 04:17:29 EDT, yovw wrote:

>I built a single stalk mirror holder out of $2.00 worth of brass.  It's
>.125" thick and curved to spread the diffraction over a wide area.  This
>eliminates the heavy spike from single stalks. (I hear the cringing and
>growling out there). 

No cringing or growling from me. Sounds good.  Can you let us know how much
the stalk needs to be bent to spread the diffraction enough?  I guess this
would make centering, etc. the diagonal more difficult... but still do-able, I
hope.

Also, I'm glad to hear that a stalk can be that thin.  No problems with extra
vibration or sagging out of alignment?  I guess the along - axis dimension
could be more than the width.  How long is the stalk, i.e. how much of it is
unsupported?

Regards,
Scott Harden