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Equipment Discussions >> Reflectors

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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: Starstructure 26" F3.3 Horizon new [Re: michael]
      #5749864 - 03/22/13 02:35 PM Attachment (153 downloads)

Hi All,
Want to show this picture of a 30” F3.6 StarStructure Horizon. This is where IMO the Horizon design really shines…Big scopes !!

With a width of only 35” and a potential load height under 30” this scope is the same size as a typical 25” scope.

Mike


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Chucky
sage
*****

Reged: 04/16/10

Loc: Dublin, Ohio
Re: Starstructure 26" F3.3 Horizon new [Re: michael]
      #5749993 - 03/22/13 03:43 PM

We are clearly moving into the next revolution of large Dobsonians. Mike is taking things to an entirely new level from what I've been following.

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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: Starstructure 26" F3.3 Horizon new [Re: michael]
      #5910199 - 06/08/13 06:13 PM Attachment (123 downloads)

Hi All,
Finished the 30" F3.6 Horizon.
Mike Z.

Edited by michael (06/09/13 07:57 AM)


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VĂ­ctor MartĂ­nez
sage


Reged: 02/05/07

Loc: Cadiz - Spain
Re: Starstructure 26" F3.3 Horizon new [Re: michael]
      #5910895 - 06/09/13 05:24 AM



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skyward_eyes
Vendor - Sky-Watcher USA
*****

Reged: 12/12/06

Loc: California
Re: Starstructure 26" F3.3 Horizon new [Re: michael]
      #5911206 - 06/09/13 11:59 AM

That 30" would fit the bill just nicely... One day. Gotta save some coin first.

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crazyqban
Carpal Tunnel
*****

Reged: 12/16/08

Loc: Miami, Florida
Re: Starstructure 26" F3.3 Horizon new [Re: skyward_eyes]
      #5915350 - 06/11/13 04:04 PM

Nice!

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rockethead26
Post Laureate
*****

Reged: 10/21/09

Loc: Arizona, USA
Re: Starstructure 26" F3.3 Horizon new [Re: michael]
      #5915517 - 06/11/13 05:34 PM

Quote:

Hi All,
Finished the 30" F3.6 Horizon.
Mike Z.




What a clean looking telescope! Well done Mike!


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a__l
professor emeritus


Reged: 11/24/07

Re: Starstructure 26" F3.3 Horizon new [Re: michael]
      #5915592 - 06/11/13 06:14 PM

Quote:

Hi All,
Finished the 30" F3.6 Horizon.
Mike Z.




Why make a large distance between ArgoNavis and the eyepiece? About 2.3 meters?
Where is the handpad for ServoCat? Wireless?
Why not finder?


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Carl Wright
member
*****

Reged: 08/05/04

Re: Starstructure 26" F3.3 Horizon new [Re: a__l]
      #5915896 - 06/11/13 09:41 PM

I guess if the scope was built for Shaq it would be OK to have the A/N at the EP. Gotos work on brainwaves. Don't need a finder to find the scope.

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audioaficionado
scholastic sledgehammer


Reged: 05/24/12

Loc: Medford, Orygun, USA
Re: Starstructure 26" F3.3 Horizon new [Re: Carl Wright]
      #5915915 - 06/11/13 09:57 PM

It shouldn't be a problem if you have a good wireless handset option.

You wouldn't need to be Shaq if you had a smaller mirror like the 20" f/3.3 Lockwood quartz.


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auriga
Pooh-Bah


Reged: 03/02/06

Re: Starstructure 26" F3.3 Horizon new [Re: michael]
      #5916119 - 06/11/13 11:54 PM

Mike,
Can you explain the advantages of having the mirror not in the same plane as the top edge of the alt trunion (or the top of the mirror box, I am not sure which)?
All the posters seem to understand the advantages of the tilted design but I am not clear what they are.

Does it mean the eyepiece position is lower when the scope is pointed at high altitudes, compared to traditional Dob design?

Or are the advantages something else?

I do get it that the front truss poles are shorter than the rear ones, but why is this an advantage?

I notice that you have done all sorts of creative things to save space in the mirror box, and to reduce the number and length of the wires, this is good, but is this the main feature of the tilted design?

Thanks for any explanation,
Bill


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audioaficionado
scholastic sledgehammer


Reged: 05/24/12

Loc: Medford, Orygun, USA
Re: Starstructure 26" F3.3 Horizon new [Re: auriga]
      #5916268 - 06/12/13 02:23 AM

I believe the whole box is a very large alt bearing. Look at the alt bearings in other large dobs and the orientation similarities.

Webster D18


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Jarad
Postmaster
*****

Reged: 04/28/03

Loc: Atlanta, GA
Re: Starstructure 26" F3.3 Horizon new [Re: audioaficionado]
      #5916422 - 06/12/13 07:01 AM

There are a couple of structural advantages. It makes the rocker box more sturdy, and allows shorter truss poles with a wider base making the trusses sturdier as well. Some large dobs do the same thing by putting a crossbar between the alt bearings, and attaching the trusses there, Mike's design makes the alt bearings an integral part of the rocker box.

Jarad


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: Starstructure 26" F3.3 Horizon new [Re: a__l]
      #5917102 - 06/12/13 02:27 PM Attachment (43 downloads)

Hi a__l

Quote:

Why not finder?




Sorry I didn't put it on yet. It has an 80mm finder and a Telrad.

Quote:

Where is the handpad for ServoCat? Wireless?




Also not on yet but has the wired HP on the podium and a wireless HP on the UTA with the auto base.

Quote:

Why make a large distance between ArgoNavis and the eyepiece?




I'm not real sure how to answer this question because I guess it's user preference. Personally, I like the Argo on the podium at the bottom of the scope. Having it on the UTA or mounted to the truss close to the eyepiece is kinda useless to me on a scope of this size. It's not like you can do a goto move more then about 2 degrees in ALT or AZ while your up on the ladder. You would need to come down before you can hit the goto button anyway.

Mike


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: Starstructure 26" F3.3 Horizon new [Re: auriga]
      #5917135 - 06/12/13 02:42 PM Attachment (55 downloads)

Hi Bill,

Your questions have pretty much been answered by Jarad and Steve...thank you guys !

Also wanted something that looked a little different then the square mirror boxed dob...Gave me a chance to use some creative thinking and get back into a little ATMing...

Edited by michael (06/12/13 03:34 PM)


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: Starstructure 26" F3.3 Horizon new [Re: auriga]
      #5920714 - 06/14/13 02:33 PM Attachment (43 downloads)

Hi Bill,
To follow up advantages of this design. I am able to make the foot print of the rocker pretty small in the width and tip height of the altitude bearing.

The photo below shows a 16" at only 20" wide This is about 5.5" narrower then my LE scopes with Servocat installed.

Mike


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: Starstructure 26" F3.3 Horizon new [Re: michael]
      #5920717 - 06/14/13 02:34 PM Attachment (40 downloads)

This photo shoes the tip height of the altitude bearing at about 26.5" from the ground.

Edited by michael (06/14/13 02:38 PM)


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: Starstructure 26" F3.3 Horizon new [Re: michael]
      #5920722 - 06/14/13 02:36 PM Attachment (47 downloads)

Shows the height if you hold the top of the mirror box parrallel to the ground.

Mike


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auriga
Pooh-Bah


Reged: 03/02/06

Re: Starstructure 26" F3.3 Horizon new [Re: michael]
      #5921121 - 06/14/13 07:28 PM

Thanks Mike, a beautiful scope, and very compact, about an inch smaller in rockerbox width, in mirror box height, and in height to top of alt bearing than my JPA Sweet Sixteen, which is itself a very compact scope.
Looks like a great design.
Bill Meyers


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