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Post your home made scope

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1596 replies to this topic

#26 barieb

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Posted 22 January 2013 - 05:19 PM

Starhopper put away

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#27 mikey cee

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Posted 22 January 2013 - 05:23 PM

My home brew of over 30 years in the making and evolving. Now currently an Istar 10" F/11 R30. The Jaegers 6" F/8 has a dual function of serving as a 38x finderscope and a widefield DSO locater. My philosophy is if I can't "detect" it in the 6" scope it's not going to show in the 10" because of the much higher magnifications and narrower field of view. But remember I'm in the urban city so my skies are shall we say.....rather milky? But double stars and planets.....whoooo weeee!:grin: Mike

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#28 jasonharris

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Posted 22 January 2013 - 05:52 PM

I think the old forums may have had a thread like this..

Here are the two scopes I have built, a 16" dob which I only have one photo handy. Guy grunting behind it is not me :)

The other is the 12.5" rc I did a little while back.

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#29 jasonharris

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Posted 22 January 2013 - 05:53 PM

And the RC.

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#30 Gary Fuchs

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Posted 22 January 2013 - 06:23 PM

My 4.25" Delmarva Schief...

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Gary

#31 cpr1

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Posted 22 January 2013 - 06:49 PM

Remake of my Z12 next to my Z10.

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#32 Pinbout

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Posted 22 January 2013 - 07:01 PM

my rehab'ed truss. [dragons represent the heavens so I thought its not incongruent]

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#33 StarWrangler

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Posted 22 January 2013 - 07:11 PM

My Little scope was made by the late
John Poaska of the kalamazoo Astronomical Ssociety

It is a 52 WWII bino lens.

Alan O.

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#34 StarWrangler

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Posted 22 January 2013 - 07:13 PM

Another view
of the John Paska scope

Alan O.

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#35 StarDusty

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Posted 22 January 2013 - 10:39 PM

You can see the rest:

16" Dob
13" Dob
6" f/5.6
6" f/12

On my website listed below

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#36 mconnelley

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Posted 23 January 2013 - 02:00 AM

Hello:

For my 20" f/4 ballscope, the collimation is indeed done from the front. The silvery bits you can see around the mirror are the face clips that keep the mirror from falling out. I can use the screws that attach the top ring to the truss poles to effectively lengthen or shorten the truss poles. Depending on your point of view, this either A) tilts the ball relative to the truss or B) tilts the truss relative to the ball. Either way, I can get it so that the optical axis of the primary mirror goes through the middle of the focuser. Since the truss is a hexapod, I could also use the truss screws to tilt the secondary. However, for the sake of simplicity, I use the usual collimation screws on the back of the secondary to tilt it so that the truss screws are just for primary mirror collimation.

Cheers
Mike

#37 dave brock

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Posted 23 January 2013 - 02:20 AM

Here are the two scopes I have built, a 16" dob which I only have one photo handy. Guy grunting behind it is not me :) The other is the 12.5" rc I did a little while back.


As I know Jason I thought I would point out that the guy in the rc pic is not him either :tonofbricks:

Dave

#38 dave brock

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Posted 23 January 2013 - 02:25 AM

One of my early efforts, an 8" Dob with optional folding stand.

Dave

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#39 neo

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Posted 23 January 2013 - 06:48 AM

My little Uberfractor :grin: I made a while ago out of a Rodenstock lens. Very nice flat field RFT which should be very good for wide field imaging. The quick and dirty Alt-Az mount seats on an old eq3 tripod tuned also for better stability.

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#40 droid

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Posted 23 January 2013 - 06:52 AM

Mine is home made, though not by myslef, but rather by a Ohio ATM named Jason Hissong
http://www.cloudynig...&Board=atm&N...

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#41 Jim Curry

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Posted 23 January 2013 - 06:54 AM

4" f/12 Istar, powder coated, baffled, AP focuser.
Jim

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#42 NHRob

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Posted 23 January 2013 - 07:18 AM

Nice. How are the optics on that 4" Istar?

#43 John Jarosz

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Posted 23 January 2013 - 08:31 AM

Here are the 3 scopes in my sig line

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#44 tim53

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Posted 23 January 2013 - 11:05 AM

This was my first home-made scope. No jive!

8" f/6 Springfield Newtonian, 1981 RTMC Merit award winner.

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-Tim
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#45 droid

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Posted 23 January 2013 - 11:20 AM

Some beautiful scopes so far. :bow: :bow: :bow: to all

#46 Victor Martinez

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Posted 23 January 2013 - 11:31 AM

Here the mine, 16" f5

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#47 idp

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Posted 23 January 2013 - 11:33 AM

Awesome thread, I learned a lot just by scrolling down.

Mike, I fell in love with your ball mount but frankly, how hard is it to collimate with the trusses instead of the primary mirror?


Ivano

#48 droid

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Posted 23 January 2013 - 12:28 PM

Victor , like the 16" f/5 on the focuser board, burned in???
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#49 Victor Martinez

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Posted 23 January 2013 - 01:09 PM

Andy, is a black vinyl adhesive

#50 StarWrangler

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Posted 23 January 2013 - 01:25 PM

Cool,

The one open Scope reminds me of D. Dillworths Dall Kirkham Folding scope that was in Sky & Telescope some years ago.

Alan O.


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