Re: ATM RE: Large Refractor tubes and Mounts?

["Jan van Gastel" <jhm.vangastel@wanadoo.nl>]

At: http://groups.yahoo.com/group/telescopen/files/Parallactische%20Dobson/
are some nice pictures of a self-built equatorial mount, using teflon and
farmica, as in Dobsonians. There was also an article about this mount in the
Dutch astronomy magazine Zenit.

Jan
http://www.geocities.com/janvangastel/


----- Original Message -----
From: Hans Winkelaar <hans.winkelaar@12move.nl>
To: Eric Claussen <etclaussen1@yahoo.com>; <atm@shore.net>
Sent: Tuesday, April 17, 2001 9:00 PM
Subject: ATM RE: Large Refractor tubes and Mounts?


>
> Hello Eric,
>
> Recently I built such a big refractor as well, and damaged my mount-drives
> on the scope. I used PVC, with 4 tube rings and Steel carier pipe. I just
> saw Jupiter fly by (very nice details), but I have to organize a new mount
> as well.
>
> I think you can make an octagonal frame of aluminium and use aluminium
> plates to cover. Or make a square tube, like a lot of French do.
>
> If you want I can send you a picture of my 222mm refractor.
>
> Kind regards
>
> Hans Winkelaar
> http://www.so-nl.nl
>
> -----Oorspronkelijk bericht-----
> Van: owner-atm@shore.net [mailto:owner-atm@shore.net]Namens Eric
> Claussen
> Verzonden: dinsdag 17 april 2001 18:43
> Aan: atm@shore.net
> Onderwerp: ATM: Large Refractor tubes and Mounts?
>
>
>
> Hello all,
>
> I have just aquired a 8.5" F12 achromat with a cell.
> I did some tests and it appears to be of excellent
> quality (at least 1/8 wave).  Does anybody have any
> recommendations for tube material.  I can get 9" PVC
> but was hoping for something a little more elegant
> (and lighter) than that.
>
> Anybody have any Ideas for a mount for such a beast?
> I was thinking a Yoke Alt-Az or maybe even Eq setup.
> I can't afford to buy a quality commercial mount.
>
> Any ideas?
>
> Thanks
> Eric Claussen
> http://www.ericclaussen.com
> (website only works when my DSL isn't crapping out on me)
>
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