Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

My ‘new’ alt-azimuth mounting option

  • Please log in to reply
12 replies to this topic

#1 terraclarke

terraclarke

    Hubble

  • *****
  • topic starter
  • Posts: 19428
  • Joined: 29 May 2012
  • Loc: 39° 4' 19" N / 84° 28' 22" W

Posted 12 June 2019 - 09:18 AM

Here’s a project I just finished. It’s a small, lightweight, but very sturdy alt-az tripod. I made it from various odds and ends. The hub tripod and legs are from my old Mayflower 60mm refractor that I’ve had since 1965. The scope and mount got so much use over the years that the castings holding the slow-motion gears finally just broke. I got a set of nice rings and a Vixen rail for the scope to be used on a modern mount and reprocessed the leftovers. The legs have been fixed so they no longer slide for added stability. The tongues for the wooden tray are simple hinges.

Last week I faced off the hub and made a pressure-fit aluminum bushing with my friend’s lathe. The 1/4-20 stud rotates freely. The primary use will be as a quick alt-azimuth setup to support my fork-mounted Questar standard for use in alt-az mode. The height is perfect for sitting at standard chair height and using the Q.

Last evening was my first opportunity to use it in alt-az mode with the lightweight wooden tripod with my 1985 Questar Standard. This make the Q even more easily grab-and-go. I generally have it on a much heavier wood surveyors tripod with a heavy metal Celestron wedge. It’s nice to have an alt-az option now for quick and casual observing both day and night (with no polar alignment required). Just pick it up, put it down, aim and start observing. I think I’m going to like this a lot. It will be great for car trips too when space or free time is limited!

Attached Thumbnails

  • 18160B11-CF36-45E4-8FE3-BF0D1C380030.jpeg

Edited by terraclarke, 12 June 2019 - 09:43 AM.

  • Paul Schroeder, Matt Looby, mrowlands and 8 others like this

#2 terraclarke

terraclarke

    Hubble

  • *****
  • topic starter
  • Posts: 19428
  • Joined: 29 May 2012
  • Loc: 39° 4' 19" N / 84° 28' 22" W

Posted 12 June 2019 - 09:21 AM

1)

Attached Thumbnails

  • 031730B2-F8EC-4DA5-81F3-73981B743F90.jpeg

  • ScottAstroNut, rcwolpert and agmoonsolns like this

#3 terraclarke

terraclarke

    Hubble

  • *****
  • topic starter
  • Posts: 19428
  • Joined: 29 May 2012
  • Loc: 39° 4' 19" N / 84° 28' 22" W

Posted 12 June 2019 - 09:22 AM

2)

Attached Thumbnails

  • 4E340342-30F2-49F0-A19A-8549012C588E.jpeg

  • ScottAstroNut, rcwolpert and agmoonsolns like this

#4 terraclarke

terraclarke

    Hubble

  • *****
  • topic starter
  • Posts: 19428
  • Joined: 29 May 2012
  • Loc: 39° 4' 19" N / 84° 28' 22" W

Posted 12 June 2019 - 09:23 AM

3)

Attached Thumbnails

  • 514881E5-17D4-43E6-BE08-3AB99BD8BDA1.jpeg

  • ScottAstroNut, rcwolpert and agmoonsolns like this

#5 terraclarke

terraclarke

    Hubble

  • *****
  • topic starter
  • Posts: 19428
  • Joined: 29 May 2012
  • Loc: 39° 4' 19" N / 84° 28' 22" W

Posted 12 June 2019 - 09:24 AM

4)

Attached Thumbnails

  • A86452F1-F316-48D3-A1CC-308357AC98C8.jpeg

  • markb, ScottAstroNut, rcwolpert and 1 other like this

#6 spereira

spereira

    Viking 1

  • *****
  • Posts: 591
  • Joined: 21 Apr 2017
  • Loc: Bedford, NH

Posted 12 June 2019 - 10:27 AM

Very nice, Terra!

 

Excellent work - and a bunch of great photos to show it off.

 

Thanks very much for sharing this!

 

smp


  • terraclarke likes this

#7 Matt Looby

Matt Looby

    Apollo

  • *****
  • Posts: 1193
  • Joined: 08 Jul 2003
  • Loc: Lake Champlain Valley

Posted 12 June 2019 - 10:41 AM

Nice work !!~!!


  • terraclarke likes this

#8 rcwolpert

rcwolpert

    Vanguard

  • *****
  • Posts: 2338
  • Joined: 13 Aug 2012
  • Loc: South Hutchinson Island, Florida

Posted 12 June 2019 - 12:09 PM

Very nice! Love the way you’re using that tray! It all looks very stable.


  • Matt Looby and terraclarke like this

#9 JamesMStephens

JamesMStephens

    Viking 1

  • -----
  • Posts: 575
  • Joined: 25 Jan 2015
  • Loc: Hattiesburg, Mississippi

Posted 12 June 2019 - 12:36 PM

Very nice.  Don't forget this discussion https://www.cloudyni...-questar-setup/


  • terraclarke likes this

#10 terraclarke

terraclarke

    Hubble

  • *****
  • topic starter
  • Posts: 19428
  • Joined: 29 May 2012
  • Loc: 39° 4' 19" N / 84° 28' 22" W

Posted 12 June 2019 - 12:37 PM

Thanks! :)

 

It is a very stable platform. The way I have the legs bolted together and with the triangular tray, there are NO shakes. I had been looking for and even thinking of building a portable table to place the Q on and then this idea came to me. I’m glad that it did. I am quite happy with the results. This will suit my needs perfectly for quick and easy setups when I don’t need tracking or want to drag out the bigger rig. And I love having the accessory tray at hand.


  • rcwolpert and JamesMStephens like this

#11 JamesMStephens

JamesMStephens

    Viking 1

  • -----
  • Posts: 575
  • Joined: 25 Jan 2015
  • Loc: Hattiesburg, Mississippi

Posted 12 June 2019 - 01:45 PM

I remember your recent discussion on tables for the Q and wasn't suggesting that you go back to that idea, but my reference may have been misleading.  Just recalling the alt-az use of the Q with its built in setting circles and portable planetarium software.  


  • terraclarke likes this

#12 terraclarke

terraclarke

    Hubble

  • *****
  • topic starter
  • Posts: 19428
  • Joined: 29 May 2012
  • Loc: 39° 4' 19" N / 84° 28' 22" W

Posted 12 June 2019 - 02:18 PM

I remember your recent discussion on tables for the Q and wasn't suggesting that you go back to that idea, but my reference may have been misleading.  Just recalling the alt-az use of the Q with its built in setting circles and portable planetarium software.  

Hi James, yes I certainly thought of that option as well. By orienting and leveling the Q it would be fun to try and find things using the altitude and azimuth coordinates from Sky Safari. And of course I always have the option of full equatorial coordinates by just placing the Q on my other, heavier rig.


  • Matt Looby, rcwolpert and JamesMStephens like this

#13 rcwolpert

rcwolpert

    Vanguard

  • *****
  • Posts: 2338
  • Joined: 13 Aug 2012
  • Loc: South Hutchinson Island, Florida

Posted 12 June 2019 - 03:28 PM

Thanks! smile.gif

 

It is a very stable platform. The way I have the legs bolted together and with the triangular tray, there are NO shakes. I had been looking for and even thinking of building a portable table to place the Q on and then this idea came to me. I’m glad that it did. I am quite happy with the results. This will suit my needs perfectly for quick and easy setups when I don’t need tracking or want to drag out the bigger rig. And I love having the accessory tray at hand.

 

That’s exactly what I did with my Mayflower 816 - wooden tray (oak) with bolts going through the legs and tray. Rock solid.  Perhaps I could modify it to use with the Questar as you have done.

 

med_gallery_211497_4490_1407452657_29276


  • terraclarke and agmoonsolns like this


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics