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SHOW US YOUR DOBSONIAN! ****

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1008 replies to this topic

#51 RAKing

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Posted 17 January 2014 - 04:56 PM

Inspiring handles and wheel system...also is that an Ipod mounted on the side?


Mike,

Thanks. Necessity is the Mother of invention. My bad back forced me to devise a way to use wheels and handles. Sadly, this Dob is still too big for me to use comfortably, so it stays in the basement most of the time. :(

That "iPod" is really an aluminum plate with Velcro and it's used to hold my new iPad :)

Cheers,

Ron

#52 benula

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Posted 17 January 2014 - 05:06 PM

My dob shortly after completion.

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#53 Starman81

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Posted 17 January 2014 - 05:58 PM

so many truss scopes in honor of someone whom I heard hated truss scopes. :grin:

[I love truss scopes. ;)]


Here's your non-trusser!

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#54 a__l

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Posted 17 January 2014 - 06:09 PM

my 24 inch

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#55 MessiToM

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Posted 17 January 2014 - 07:36 PM

Id like to think he would be proud of my ingenuity of re using old stuff and left overs.

17.5" f4.45
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#56 george golitzin

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Posted 17 January 2014 - 07:51 PM

Here are three home-built dobs. The first one John looked through back when it was a 16-inch f/5; now it's an 18-inch f/4.2:

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#57 george golitzin

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Posted 17 January 2014 - 07:52 PM

And my 10-inch f/5:

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#58 george golitzin

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Posted 17 January 2014 - 07:57 PM

and finally my 12.5-inch f/6. Thanks John, for your inspiration--

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#59 jeff heck

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Posted 17 January 2014 - 09:05 PM

Rest in Peace, John. (thank you) :bow:

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#60 thomas68

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Posted 18 January 2014 - 06:22 AM

Here is my 12" f/5 Dob, thanks John!

Tom :grin:

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#61 Moffss

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Posted 18 January 2014 - 09:31 AM

Here's my big 8"!!!! I love all your big modern scopes. Wish I could afford one too! I still have and use my first telescope. an 8" coulter, or Odyssey 8. Some improvements have been made and the mirror was recently recoated.
Thanks!
Paul

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#62 lbsgville

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Posted 18 January 2014 - 10:09 AM

Here is some pics of my 10" Meade Starfinder and mods I made. I got this scope used and it needed a lot of TLC, I think John would have been proud of the passion and love I have for this scope. First pic is my simple brake system.

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#63 lbsgville

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Posted 18 January 2014 - 10:10 AM

Before paint

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#64 lbsgville

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Posted 18 January 2014 - 10:11 AM

After paint

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#65 lbsgville

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Posted 18 January 2014 - 10:17 AM

New mirror cell with baffle. I posted these pics in memory of John because I think he would have understood my passion of working on my scope, it is a labor of love, and I thank him so much for making it possible for me to have it. May he rest in peace, but he will never be forgotten!

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#66 Michael Rapp

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Posted 18 January 2014 - 11:36 AM

After reflecting (pun intended) on it, I owe a great deal to John Dobson's innovation.

In 1991 as a birthday present I got my first "real" scope: a Meade 826C Equatorial Reflector. Unfortunately, the eq mount was just too heavy and cumbersome to move for me. At an astronomy club meeting, my father noticed a Dobsonian telescope sitting there. He took out a notecard and made a sketch. A month later I had my 826C's tube in a Dobsonian mount! I could easily move it myself and most importantly, move it around the yard to get around the trees so I could see more things.

Here is my scope in that Dob mount that I still use to this day, twenty-three years later.

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#67 Mike B

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Posted 18 January 2014 - 01:18 PM

Very kewl, Michael. I, too, had an 826c (red-tuber), pre-Halley, and the EQ mount was indeed a beast. Worked well, but was a permanent yard fixture. But your Dad's contribution in rendering yours a Dob is seriously beautiful- and on a whole buncha levels!
:bow:

#68 Bill Weir

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Posted 18 January 2014 - 04:24 PM

my father noticed a Dobsonian telescope sitting there. He took out a notecard and made a sketch. A month later I had my 826C's tube in a Dobsonian mount!


I need to know nothing more as a person to totally love your father. You are a lucky man and so will be any children you have. Their father will have had an excellent example to guide him.

Bill
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#69 Adam Taylor

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Posted 18 January 2014 - 04:30 PM

Michael, are your altitude bearings made from old phenolic ashtrays?

#70 paul m schofield

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Posted 18 January 2014 - 05:20 PM

The mighty 6" f/7... check these custom features:
Tube rotation in a box.
Velvet lined dew shield with attached Rigel finder.
Oversized focuser knobs (peanut butter jar lids)
Toilet flanges with ebony star formica for altitude bearings
Tension adjustment-bunji cords (Need more? Add another knot)
Ebony star and teflon azimuth bearing.
Smooth as silk tracking even at 300x in spite of its rough looks.

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#71 DarkSkysRFun

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Posted 18 January 2014 - 07:15 PM

my baby dob i made tonite. its daddy behind. the baby is a 5inch and the daddy is a 12inch.

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#72 Sirius76

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Posted 19 January 2014 - 01:48 AM

Here is my Hofheim Instruments 8" f/4 travelscope. I wrote a review of it in this months issue of Astronomy technology Today. Its also available as a pdf here on our news page.

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#73 Sirius76

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Posted 19 January 2014 - 01:51 AM

And here's my workhorse!

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#74 plav1959

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Posted 19 January 2014 - 08:17 PM

Here's mine:

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#75 bherv

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Posted 19 January 2014 - 09:02 PM

My 16" Lightbridge.
Barry

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