Re: ATM:Project plans after unpacking

["Albert Highe" <ahighe@ix.netcom.com>]

Angel,

I'd recommend a 6 point cell. It is easier to make than a 9 point cell and
will support your mirror very well.

Albert

----- Original Message -----
From: "Angel Caparros" <wylecoyote@terra.es>
To: "Atm@Shore.Net" <atm@shore.net>
Sent: Friday, December 28, 2001 4:39 PM
Subject: ATM:Project plans after unpacking


>
> I unpacked  12" f5 plate glass mirror at last...
> No visible surface or coating defects,not TDE (roughly inspected with 0.1
mm
> slit and 100 lines per inch ronchi grating).
> My dealer told me that it was 1/15 wave.I trust him because he is a
reputed
> mirror maker in Spain and I have another 10" f6 from him that performs
> great.
>
> I purchased the 10" two years ago,I made a 12,5" epoxi-fiberglass tube an
> three point mirror cell support  made in epoxi too.At fist time  its was
> mounted on crude Dobson from my old 10" f4 .  The scope is actualy on a
GEM
> .
>
> I bought the 12" mirror ,thinking about an ultraligth dob for observing
from
> remote dark sites, easy to carry on my Toyota 4runner ( My dream is to
take
> both ,car and scope, to Sahara Desert next autuum .Africa is only 170km
from
> home).Many people from North America think Spain is in México. Many people
> from Europe think that Spain is in Africa...I think that Andalucía,my
state,
> is in Africa and I like to think that ;-)
>
> Well ,My question of the day is ( I think i will make a lot of questions)
> My mirror is 34 mm ~ 1.53" thick : 3,6,9 points support cell?
> Three point works well for my 10" but they are 34 mm thick too.
>
> Best Regards
> --------------------------------------------------------------------------
--
> ---
> Ángel Caparrós
> Málaga Spain
> N  36º 43' 12"
> W 4º 25'   12"
>
>
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