Re: [ATM] Comment on Crayford construction

[Dave Smith <smithersscope@yahoo.com>]

Hi Ross,
I do have pics posted on my website:

http://dsmith.no-ip.org/smithersscope/atm/woodcrayford.htm

ignore the solid wooden focuser at the top of the
page...just scroll ALL the way down and you'll see the
wooden block that pinches the focuser shaft up against
the draw tube.

The scope has been in the house (~40% humidity) since
about 10 a.m. this morning (it's 8:20 p.m. now) and
the focuser is behaving smoothly again. I'm convinced
it's the moisture at fault. It was about 98% humidity
here in SoCal last night.

 Thanks!
Dave
--- Ross Sackett <rsackett00@yahoo.com> wrote:

> Hi Dave,
> 
> I am intrigued by your use of wood for focuser
> bearings.  I considered lignum vitae bearings
> running
> on brass several years ago for an antique-like scope
> project, but the design never got into the shop.  Do
> you have photos or a link to your focuser design?
> 
> Ross Sackett
> 
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
> 



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