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Finally Doing It

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#1 Jeff B

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Posted 16 November 2021 - 02:54 PM

For the last 6-7 years, I've kept my TEC 200ED mounted outside and covered with a Telegizmos 365 Cover.  The cover was suppose to be just a temporary thing but it was so easy to use and worked so well, I just kept using it instead of building my observatory.  

 

Well that has changed and I'm finally proceeding with a 13' x13' roll off roof observatory.  Here is the form for the concrete pad but you can also see the old concrete plug where the pier was bolted to (it will be covered over with concrete). 

 

I've got the wheels and track too.

 

Hopefully, it will be done this year.

 

Jeff

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  • Concrete Forms.jpg

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#2 macdonjh

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Posted 16 November 2021 - 11:13 PM

Looks like a pretty neighborhood.


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#3 stargzr66207

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Posted 17 November 2021 - 12:31 PM

Can’t believe you could leave such an exquisite instrument exposed! You must have REALLY good neighbors.
Ron Abbott
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#4 EricCCD

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Posted 17 November 2021 - 03:59 PM

Woot! Congrats, Jeff!



#5 Jeff B

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Posted 20 November 2021 - 10:04 PM

The foundation has been poured.

 

Checking it the next morning I saw, contrary to my last three such foundations, no cat paw prints going across it. 

 

Framing should start after Thanksgiving

 

Jeff

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  • Foundation Poured.jpg

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#6 Jeff B

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Posted 22 November 2021 - 05:51 PM

So at 12:23 PM local time, which is solar noon here, I had a 6' 2x4 positioned precisely east/west vertical at the precise middle of the south edge of the pad and its center aligned with a nail in the wood concrete form.  Being solar noon and the 2x4 east/west vertical, the long shadow it cast was precisely north, south and I marked the top middle of the shadow with an 8P nail.  Removing the long 2x4, I wrapped a string around the nail in the south form board and ran it out from there, over the 8P nail and to the north wood concrete form board where I put another nail.    I then got out my Grandpa's old chalk string dispenser (he was a builder and carpenter), put the hook over the south nail, reeled out the string, wrapped it tightly around the north nail and then proceed to snap a precise N/S chalk line.  Finally, I snapped diagonal lines from corner to corner.  The intersections of the lines were within a half inch of each other.  Taking some measurements and  assuming the N/S line is accurate, I determined the pad itself to be quite square and no more than .3 degrees off of due N/S.  Not bad!!  Holding the old reel chalk line dispenser in my hand (which has to be about 100 years old) I also took a moment to say hello to my Grandpa.  I felt a little choked up actually.

 

Next I wrestled the 150 pound pier onto the pad, marked the centers of the bottom flange edges, walked it over to the chalk lines, lined everything up and drew lines around the bottom flange and inside the bolt holes. 

 

Done.

 

Next I'll remove the pier.

 

Tomorrow.

 

Jeff 

Attached Thumbnails

  • Pier Fit Check A.jpg
  • Pier Fit Check B.jpg

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#7 greenstars3

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Posted 29 November 2021 - 02:01 AM

Looks great Jeff

 

For the roof, a set of box beams and some premade trusses has worked very well for my RoR (12x12 ft)  I set them on upsidedown angle and used metal shop grooved wheels. The track extends out onto some 4x4 inch I beam  that will never warp or twist. It was over kill but I have never had any trouble with the roof binding and pull it open and closed with ropes - it moves very easy. 

 

Robert

 

edit: I use chain and binders to secure the roof when closed so the wind does not take the roof into the next state


Edited by greenstars3, 29 November 2021 - 02:02 AM.

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#8 Jeff B

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Posted 02 December 2021 - 11:39 PM

A high priority for a roll off roof observatory is, of course, the hardware to roll it off.

 

I finally got the 4" V-groove wheels and track.  The infrastructure and shipping issues today reach down even to this stuff, resulting in significant delays.  Framing has been delayed until next week too because of material shortages.

 

Jeff

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  • V Grooved Wheels and Rails.jpg

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#9 Jeff B

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Posted 18 December 2021 - 12:07 PM

Prefabbing the walls and roof trusses in the shop prior to installation, which might be after Christmas.

 

Jeff  

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  • pre-fab walls and trusses, a.jpg

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#10 cougarone

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Posted 19 December 2021 - 06:14 PM

keep us posted on the outcome !



#11 NoDarkSkies

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Posted 19 December 2021 - 08:02 PM

Great startup, the pad is looking nice and the Pier is looking solid as can be.
I did the same with my Pier. See Thread Starting up setting up NoDarkSkies New Observatory


Edited by NoDarkSkies, 19 December 2021 - 08:04 PM.


#12 Jeff B

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Posted 05 January 2022 - 06:29 PM

Progress despite the high winds.

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  • Walls Started.jpg

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#13 Jeff B

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Posted 05 January 2022 - 06:31 PM

Walls done, wrapped, windows in with siding started.  We were delayed two weeks for Christmas and, especially, the metal roofing, which is in very short supply.

 

Jeff

Attached Thumbnails

  • Walls Up, Windows In.jpg
  • From the Front.jpg

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#14 NoDarkSkies

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Posted 05 January 2022 - 07:34 PM

Looking Great!



#15 MHamburg

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Posted 06 January 2022 - 11:48 AM

Clear skies to you!

Michael



#16 Jeff B

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Posted 14 January 2022 - 10:53 PM

Coming along. 

 

Siding done and roof will go up early next week.

 

Got these for roof clamps:

 

https://www.thetoggl...om/40341ss.html

 

Jeff

 

 

Attached Thumbnails

  • Coming Along A.jpg
  • Coming Along C.jpg

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