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SHOW US YOUR DOBSONIAN! ****

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#1 mattyfatz

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Posted 15 January 2014 - 10:08 PM

In honor of the late John Dobson, I though I'd start this thread showing off Dobsonians!
Ugly and incomplete, or works of art... Mass produced or home made.... Truss or tube or whatever...
Show them off here!

I'll start with my Coulter 13.1 project.

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#2 mattyfatz

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Posted 15 January 2014 - 10:09 PM

Here is the upgraded mirror cell and duck tape removed

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#3 Rinaldo

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Posted 15 January 2014 - 10:14 PM

This is a scope from a astronomy club project, it has fantastic optics!

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#4 mattyfatz

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Posted 15 January 2014 - 10:17 PM

What's that bearing?
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#5 kirscovitch

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Posted 16 January 2014 - 02:19 AM

I still haven't had first light with it yet. :(

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#6 Erik Bakker

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Posted 16 January 2014 - 06:04 AM

Great idea. Because of John Dobson's efforts, I am able to observe the universe with a 16" scope made by Matthias Wirth. So here is a picture of my 16" f/5 Dobsonian in John's honor:

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#7 BDS316

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Posted 16 January 2014 - 07:29 AM

http://www.astrogood...e.goldeneye.jpg
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#8 Chuck Hards

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Posted 16 January 2014 - 08:35 AM

6" & 4.25" Dobs I made circa 1998:

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Fiberglass 10" f/5.6, circa 1988-89. I eventually made about a dozen of this model:

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That's a much younger me in the center:

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I doubt Dobson would have approved of my work, especially the fiberglass scopes, nevertheless I will forever be in his debt for breaking-down the mindset that a large visual reflector must be equatorially mounted to be useful.
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#9 MikeBOKC

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Posted 16 January 2014 - 08:57 AM

xx14g

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#10 Pinbout

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Posted 16 January 2014 - 09:04 AM

reuse, recycle, and re something else...


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#11 Mirzam

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Posted 16 January 2014 - 09:05 AM

A small classic dobsonian.

JimC

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#12 Mirzam

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Posted 16 January 2014 - 09:06 AM

14-inch travel scope in Alcohuaz, Chile.

JimC

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#13 André Heijkoop

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Posted 16 January 2014 - 10:41 AM

24" f3.7 truss Dobson from the Netherlands.

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#14 bob midiri

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Posted 16 January 2014 - 11:02 AM

I met John a few times at Stellafane and at the Mason Dixon Star Party. he was such an inspiration and will be missed

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#15 tubehead999

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Posted 16 January 2014 - 11:13 AM

Captain America...

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#16 Sean Cunneen

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Posted 16 January 2014 - 02:09 PM

Yeeehaaaaaaa!!!!!

Here's to you John! When I was a member of the Calumet Astronomy Association, they had a John D. 24" f6. It was in pretty bad shape and at some point it went somehwere else. I always will regret not stepping up and putting the thing back together!

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#17 rguasto

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Posted 16 January 2014 - 02:13 PM

52 year-old OTA

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#18 Pinbout

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Posted 16 January 2014 - 02:19 PM

my 6"f9 on my sanding bench...

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#19 TG

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Posted 16 January 2014 - 03:58 PM

Intes MN66, originally meant to be mounted equatorially, finally gave in to the Dobson philosophy.


Tanveer.

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#20 Jeff Morgan

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Posted 16 January 2014 - 04:27 PM

I doubt Dobson would have approved of my work, especially the fiberglass scopes, nevertheless I will forever be in his debt for breaking-down the mindset that a large visual reflector must be equatorially mounted to be useful.


Indeed. Because of the machined metal equatorial mount mindset, pre-Dobson a 12" telescope was a large visual reflector!

For the most part we left Dobson behind with our refinements. But the circus canon mount in and of itself was a huge breakthrough in thinking.

As an aside, Dobson lived to see the evolution of the alt-az reflector. Did he comment publicly on it?

Here is my contribution. Stripe, a 16" Dobson-evolved. It even matches his original f/7 scopes!

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#21 John Huntley

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Posted 16 January 2014 - 06:31 PM

Here is my 12" F/5.3 dob, with great respect and thanks to John Dobson for all he has done for this hobby. Not enough people apart from myself have looked through this scope yet - I'm going to try and do something about this though :)

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#22 contrailmaker

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Posted 16 January 2014 - 07:45 PM

Cool scope Jeff. I bet the planetary/lunar views are fantastic.

CM

#23 csa/montana

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Posted 16 January 2014 - 07:50 PM

My AstroTech 16" Dob.

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#24 Tim Gilliland

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Posted 16 January 2014 - 09:03 PM

This is my Discovery Dob, it sees use monthly at my Sidewalk Event. Last friday 25-30 viewers.

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#25 mattyfatz

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Posted 16 January 2014 - 10:02 PM

:grin: a pic from ISP1992 with the man himself..

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