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#1 Gary Gause

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Posted 12 May 2014 - 09:33 PM

after so many years, it is happening. the observatory is being built this week. took the week off along with my uncle-in-law and great friend, mike dykstra.

here the two 24 inch by 4 foot sonotubes are being put in place. the sub-floor is built and painted to fend off the northwest mold. waiting on the rebar bender to build the cage, then -a lot- of concrete mixing.

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#2 dmdouglass

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Posted 12 May 2014 - 11:07 PM

Looking good. Remember the rules...
Lots and Lots of Pictures !!

When it is done, you will love it..

#3 csa/montana

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Posted 12 May 2014 - 11:48 PM

Hey Gary, Congratulations! It is a very exciting time for you, and when it's completed; you'll wonder how you observed without it! :)

Also, glad you made your first post here!

#4 Starman27

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Posted 13 May 2014 - 07:49 AM

Great first post Gary. Can't wait for the rest.

#5 snommisbor

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Posted 13 May 2014 - 08:27 AM

Looking good so far and welcome to CN!!

#6 tim57064

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Posted 13 May 2014 - 09:09 AM

Gary, Welcome to Cloudy Nights. You may be a newbie yet what a great first post. :waytogo: I'm sure we will hear and see what you plan on placing on those piers. How big are you going with the OBS?

#7 Gary Gause

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Posted 13 May 2014 - 09:26 AM

Thanks, everyone. It was too good not to share. It's going to be a 12'x24' observatory with a 12x8' warm room and a 12x16' scope room.

I have a "wimpy" Meade 8 inch LX90 I've been imaging with in a converted shed. Hoping to buy a new scope once the observatory is built. I figured I couldn't get the scope until it had a home.

Oh, and I do have a 20 inch dob that I've had under construction for more than a decade. Maybe that will finally get some use.

-Gary

#8 stmguy

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Posted 13 May 2014 - 05:54 PM

I love the subject line !
Norm

#9 Gary Gause

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Posted 13 May 2014 - 09:43 PM

two 1.5 inch conduit lines for data, one for each pier. two 3/4 lines for power. not sure if i will run dc or not.

the wood blocks along the sonotubes are temporary.

tomorrow, the rebar cage, the floor, and maybe, just maybe, we will pour some concrete. i think it will be 20 80 lb bags per pier. i hope my calculations are off.

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#10 theflop

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Posted 14 May 2014 - 01:31 AM

You will love the fact that you'll have a warm room!

#11 Gary Gause

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Posted 14 May 2014 - 06:50 PM

view of the worksite.

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#12 Gary Gause

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Posted 14 May 2014 - 06:54 PM

they look like missile silos at this point.

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#13 Gary Gause

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Posted 14 May 2014 - 06:55 PM

close up view before the rebar cages are put in.

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#14 LoveChina61

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Posted 14 May 2014 - 07:52 PM

Wow! I didn't even know they made Sonotubes (cement tubes) that wide. Way to go! That is going to be one solid pier base regardles of what kind of scope you end up mounting there.

#15 Gary Gause

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Posted 14 May 2014 - 08:21 PM

had to get the sonotubes at a local construction supply store. 12.19 a foot, so a hundred bucks for the pair. saw the same ones online for 400.

#16 Gary Gause

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Posted 14 May 2014 - 09:49 PM

my goal is for a paramount me mount with a planewave 17" scope. one scope for imaging and one smaller scope for visual/wide field use.

first the building, then the mount, then the scope. i expect each phase to take a year to finance if i am lucky. and so far this has been a very lucky year.


#17 Midnight Dan

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Posted 15 May 2014 - 06:36 AM

It looks like you're designing the pier bases such that you can lay in a piece of plywood to cover the opening? Just curious as to why you're doing that. Are you planning to remove the upper piers and will have a need to cover the hole?

-Dan

#18 Gary Gause

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Posted 15 May 2014 - 09:24 AM

One of the piers won't be used for a while. I will have metal piers on top the concrete. Also, if I ever move, this will become an "artist's studio".

#19 Gary Gause

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Posted 15 May 2014 - 06:48 PM

piers are poured! data conduit in the middle for those mounts that have center cabling (paramount me). took 22.5 80lb bags of concrete per pier.

and no, i haven't forgotten the bolts. i've opted for adhesive bolts in this case so they will be added later. for one of the piers, much later.

-gary

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#20 snommisbor

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Posted 16 May 2014 - 10:22 AM

That is a sick looking pier, should handle anything you throw at it. Very nice.

#21 dmdouglass

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Posted 16 May 2014 - 11:55 AM

I am "hoping" that last post meant to say "slick", and not "sick"....

Looking good at the obs....
Keep the pictures coming please.

#22 snommisbor

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Posted 16 May 2014 - 12:41 PM

No I meant sick but sick is a good thing. An 80's-90's slang. But does have the same meaning as slick. :grin:

#23 Midnight Dan

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Posted 16 May 2014 - 01:08 PM

I've heard "sick" being used in today's slang as meaning something that's intense, over the top, way beyond expectations. It may be that he's using it that way. (kind of like years ago when "bad" meant "good" ;) )
-Dan

#24 Gary Gause

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Posted 17 May 2014 - 04:06 PM

truss manufacturing well under way.

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#25 Gary Gause

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Posted 17 May 2014 - 04:32 PM

total cost breakdown per pier:

sonotube - $50
concrete - $85
rebar - ~$25
cement mixer, vibrator rental - $40 (x2 if doing one pier)

total = $195

not bad considering i modeled it after some university telescope piers i saw online. should be stable up to 24 inch scopes, although my budget would never allow that.






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