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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: Jarad]
      #6162157 - 10/28/13 10:06 AM Attachment (50 downloads)

Hi Jarad,
Really not sure how small I plan to go. Here's a picture of a little 14.5" F4.5 that I've built a few of. This scope is smaller then most 12.5" scopes. There was a 22" at Oki-Tex that everyone thought was an 18". I can certainly go smaller, just not sure if it's practical to build smaller then about 12.5". Pricing is the same as the LE design. Just a note I had to discontinue the TL Series because I couldn't get the quantities to keep the mirror pricing where it needed to be.

Mike


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Jarad
Postmaster
*****

Reged: 04/28/03

Loc: Atlanta, GA
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: michael]
      #6162915 - 10/28/13 04:34 PM

Well, that answers my question. I currently have a 14.5" P-ball, which is about the biggest thing I can fit in the minivan with 2 kids and camping gear for all of us. But in a few more years they are going to be heading off to college, and I am starting to think ahead of getting something in the ~20" range when I only have to fit 2 people instead of 4...

Jarad


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alancygnusx2
professor emeritus


Reged: 11/25/08

Loc: CA
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: michael]
      #6163840 - 10/29/13 01:25 AM

Magnificent, one of these scopes should be displayed in the Museum of Modern Art. The bare aluminum looks so good I would be tempted to skip the paint job.

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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: alancygnusx2]
      #6164593 - 10/29/13 01:26 PM

Hi Alan,

Thank you !!

Mike


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: Jarad]
      #6164615 - 10/29/13 01:36 PM Attachment (49 downloads)

Hi Jarad,
Here are a few comparison shot of a 22 F3.6 LE and a 22 F3.6 Horizon.

Mike

Edited by michael (10/29/13 01:36 PM)


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: michael]
      #6164618 - 10/29/13 01:37 PM Attachment (32 downloads)

Another view. This photo is a little deceiving...Its not as small as it looks from this perspective.

A 22 LE with Servocat measures about 32 wide while a Horizon measures about 26.5

Edited by michael (10/29/13 01:42 PM)


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: michael]
      #6164632 - 10/29/13 01:42 PM Attachment (24 downloads)

Here it's about 4" lower then the same size LE.

Edited by michael (10/29/13 01:43 PM)


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: michael]
      #6164636 - 10/29/13 01:46 PM Attachment (38 downloads)

But this way, or what I'll call minimum load height it's about 11" lower then the same size LE.

Mike


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klim
member


Reged: 08/24/08

Loc: Matamoras, PA
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: michael]
      #6170935 - 11/01/13 07:26 PM

Michael,

Will the Horizon stay in place in that position while being loaded up a ramp into a mini-van? Thanks.

Mark


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: klim]
      #6185037 - 11/09/13 04:44 PM

Hi Mark,
No, if you need to hold it that way the scope comes with a winch system to hold the mirror box. This really only needed on bigger scopes.

Mike


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: michael]
      #6339306 - 01/27/14 06:01 PM Attachment (30 downloads)

Hi All,
WOW...can't believe that it's been more than 2 months since my last post on the 36"...Anyway finally was able to get back into it and started the UTA today. Hopefully we'll have the 36 standing by week end.

Mike


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: michael]
      #6343793 - 01/29/14 05:54 PM Attachment (22 downloads)

Pic of OTA. The OTA came out right at 12' from back to front.

Mike


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

Reged: 12/12/06

Loc: California
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: michael]
      #6343941 - 01/29/14 07:24 PM

Yep that would take care of my big scope needs... Maybe one day.

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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: StarStructure Telescopes / LARGE APERTURE SCOPES [Re: skyward_eyes]
      #6345530 - 01/30/14 04:28 PM Attachment (26 downloads)

Here is a pic of her standing.

Mike


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michael
Vendor (Starstructure Telescopes)


Reged: 01/24/04

Loc: Trinity Florida
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: michael]
      #6350072 - 02/01/14 09:26 PM Attachment (23 downloads)

I think this shot gives you a real perspective on size.

Come on...I'm not really that small!!!

Mike

Edited by michael (02/01/14 09:28 PM)


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

Reged: 12/12/06

Loc: California
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: michael]
      #6352011 - 02/02/14 08:24 PM

Wow! That's impressive.

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Bob S.
Carpal Tunnel
*****

Reged: 07/14/05

Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: skyward_eyes]
      #6355085 - 02/04/14 08:52 AM

Mike, That is one impressive HUGE telescope! Keep up the good work. Bob

Edited by Bob S. (02/05/14 07:10 PM)


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MDavid
super member


Reged: 11/15/11

Loc: 29N (Texas)
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: Bob S.]
      #6355259 - 02/04/14 10:43 AM

Great Pic! With this telescope its owner will not only SEE the stars but also BE a star!

I think a scope of this magnitude should have a name.

Keep those pics coming...


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Starman1
Vendor (EyepiecesEtc.com)
*****

Reged: 06/24/03

Loc: Los Angeles
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: MDavid]
      #6355317 - 02/04/14 11:16 AM

Couple of questions/comments:
1) Given that the angle of the top of the mirror box is tilted quite a bit from the angle of the center line of the scope itself, shouldn't the opening in the mirror box be elliptical in order to present a round hole to the primary to secondary light cone?

2) It would seem that sandwich mirrors need very firm support at the edge of both upper and lower plates in order to prevent astigmatism. But, in this size, I can also see lateral sag in the inter-plate support blocks would pull on the upper and lower plates and cause a "dimpling" of the mirror surface.
The 18" sandwich mirror I saw in the 18" Sky-Watcher at ASAE had, at least, a large number of cylinders between the upper and lower plates, as well as firm edge supports for both plates--plus, it was much thinner from front to rear. Of course, not having seen the mirror, I have no idea what the number and nature of inter-plate connectors is on this 36". I would be really afraid that lateral sag in the inter-plate supports would play havoc with the mirror surface. I wonder why the mirror is that thick from front-to-rear?


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Relativist
Post Laureate
*****

Reged: 10/11/03

Loc: OC, CA, USA
Re: StarStructure Telescopes / LARGE APERTURE SCOPES new [Re: Starman1]
      #6357816 - 02/05/14 02:22 PM

Quote:

Couple of questions/comments:
1) Given that the angle of the top of the mirror box is tilted quite a bit from the angle of the center line of the scope itself, shouldn't the opening in the mirror box be elliptical in order to present a round hole to the primary to secondary light cone?





Very astute, the light cone will form an ellipse, one of the very definitions of an ellipse is a conic section at such an angle. That said, as long as a circular cut out had a diameter greater than the major axis of the described ellipse there would not be interference to the light cone. Note that, such a circular opening will appear elliptical at the eyepiece.


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