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Re: [ATM] We got a bunch of those tubes from Warshow & Co
Chris,
Thanks - I found essex tubes in the end and Guy sent me a link to Crayford
tubes. I think the problem was I was searching for sonotube, and I presume
essex and crayford sell some other tubing with a different brand name.
Cheers.
Paul
----- Original Message -----
From: "Chris Rowland" <chris_group_mail@dsl.pipex.com>
To: "ATM" <atm@atmlist.net>
Sent: Wednesday, October 12, 2005 8:29 AM
Subject: Re: [ATM] We got a bunch of those tubes from Warshow & Co
> Guy Brandenburg wrote:
>> Wait a second. Are you trying to tell me that nowhere in the UK, nor
>> even in the EU, are there any construction projects involve casting
>> concrete foundations or columns? I find that exceedingly difficult to
>> believe. Why would the US be the only place where architects, masons,
>> and concrete workers use cardboard tubes to cast nice, cylindrical
>> columns to support buildings? Believe me, these things were not
>> invented for the telescope-making hobby! I suppose I could mail you
>> one, but my guess is that postage costs on each one, from the US to
>> the UK, would be between $80 and $150 each - which is prohibitive, I
>> think. My suggestion is to look harder. If indeed they don't exist in
>> the UK, then make square or hexagonal cross-section tubes out of thin
>> plywood.
>
> They are available in the UK but not from the construction industry. For
> some reason concrete is never done in circular columns but rectangular,
> made with lots of wood.
>
> Try http://www.essextubes.co.uk or http://www.crayford-tubes.co.uk/ or
> Google for "cardboard tube uk".
>
> A friend of mine got one to make a telescope pier, IIRC it wasn't cheap.
>
> I made a square telescope tube from 2mm MDF with wood in the corners and
> ply reinforcing on the lower section. A bit heavy and known at the local
> Astro society as the coffin.
>
> Chris
>
>> Guy
>>
>> Paul Bradley <paul@paul-bradley.com> wrote:
>>
>> Guy,
>>
>> I'm not absolutely 100% on this, but I believe sonotube is impossible
>> to obtain in the UK where I live, and if not impossible at least a
>> major difficulty.
>>
>> I expect it might be ridiculously expensive, but I'd be interested to
>> find out how much it would cost for you to ship 3 of these to me, as
>> I'm currently making a pair of 8" binoculars and am planning another
>> 8" scope after those.
>>
>> If you don't mind I'd really appreciate it if you could find out the
>> shipping cost. If it's even remotely reasonable I could put a post
>> out on the ATM list and see if there are any other UK ATMs on the
>> list that would like to share shipping costs and get some of these
>> sent over.
>>
>> Thanks.
>>
>> Paul
>>
>> ----- Original Message ----- From: "Guy Brandenburg" To: ; Sent:
>> Tuesday, October 11, 2005 3:40 AM Subject: [ATM] We got a bunch of
>> those tubes from Warshow & Co
>>
>>
>>
>>> Steve LaPrade and I went up to Milton, PA and took delivery of
>>> about 25 10-inch diameter, 10-feet-long Sonotubes with wall
>>> thickness 1/4 inch. Or are they 8 feet long? I forget. In any case,
>>> we got a lot of them, and they are dusty, but otherwise in good
>>> shape and reasonably round. Just need priming, painting, cutting,
>>> drilling, and being made into telescopes. We will give them out to
>>> folks interested in making 8-inch diameter scopes in our area. If
>>> others are interested in taking the drive, Milton PA is right about
>>> in the very center of PA. Steve had a small-ish pickup truck but
>>> built a very clever cage to hold the tubes in place without falling
>>> over the sides. ATMers in New England, New York, Ohio, Pa, Illinois
>>> and beyond would probably find this to be worthwhile, if you are
>>> going to do a mass trip. We also visited an optical shop near
>>> Baltimore and saw how REAL professional opticians pre-generate,
>>> fine grind, polish, and figure mirrors for military and civilian
>>> applications. Very, very interesting. I might even figure out a few
>>> things that we could transfer to our relatively much more
>>> impoverished situation. Like the wire test.
>>>
>>> Guy
>>>
>>> Guy Brandenburg Washington, DC My home page:
>>> http://home.earthlink.net/~gfbranden/GFB_Home_Page.html
>>> _______________________________________________ ATM mailing list
>>> http://www.atmlist.net/
>>>
>>>
>>
>>
>>
>>
>> Guy Brandenburg Washington, DC My home page:
>> http://home.earthlink.net/~gfbranden/GFB_Home_Page.html
>> _______________________________________________ ATM mailing list
>> http://www.atmlist.net/
>>
>>
>
>
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