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Chapel Grove Observatory

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#26 Starman27

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Posted 27 March 2013 - 08:19 AM

Your observatory build is looking very good. Great design implementation.

#27 csa/montana

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Posted 27 March 2013 - 08:28 AM

That's looking really nice. I like the black paint on the walls!

#28 stmguy

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Posted 27 March 2013 - 09:16 AM

Thanks for the compliments

I have lots of pics out on my Picasa site at

https://picasaweb.go...oryConstruction

Norm

#29 stmguy

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Posted 27 March 2013 - 09:20 AM

The paint is a real dark blue on the walls, perhaps the picture came out darker on your monitor Carol.

It's pretty dark in there at night , I can't even see the focuser to change eyepieces without some light either from the rope lights (which I put on a dimmer) or a red flashlight works too but ties up one hand of course.

Norm

#30 Jeff Smith

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Posted 27 March 2013 - 09:55 AM

Looking good. Very organized.

#31 MHamburg

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Posted 27 March 2013 - 10:09 AM

Thanks for that great set of construction photos. I especially am impressed with your drive system for the roof. Has there been any warping?
Michael :bow:

#32 stmguy

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Posted 27 March 2013 - 10:26 AM

yeah I'm afraid the "drive ring" has warped a little which makes it harder to drive the roof . I spring loaded my drive wheel this weekend but I really need a heavier compression spring. Ideally I'd have another drive wheel in the opposite corner but my wife seems to think I've spent enough money on it.I built it so I can drop the roof back down (jack on each side) if I'm going to be away or a bad storm is predicted etc.
Norm

#33 MHamburg

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Posted 29 March 2013 - 01:37 PM

Norm,
Could you post a detail photo of the spring-loaded drive wheel? I have a similar problem with a warped iron base ring and the eight support wheels it rolls on. (Check out the upper-left of this photo for an idea of how the wheels are mounted.) Not all the wheels make contact at the same time and I'm afraid one day soon I won't be able to "manhandle" the big dome around. Also I would love to motorize the dome rotation, but I would need better contact with the wheels and spring-loading them sounds like a good solution. Thanks again.
Michael

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#34 stmguy

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Posted 29 March 2013 - 03:28 PM

Lots of photos out here
https://picasaweb.go...oryConstruction

But here is one here

I'll see if I can get a better closeup of the spring mechanism ...downloaded that from my Picasa site and it reduced the size...I still need a heavier spring as I still get some slippage

Norm

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#35 stmguy

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Posted 30 March 2013 - 02:21 PM

Here are a couple of photos of the spring loaded drive , not too complicated...I drilled a hole a little bigger than the spring in the drive board so it couldn't pop out
Norm

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#36 stmguy

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Posted 30 March 2013 - 02:21 PM

and the second one

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#37 MHamburg

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Posted 30 March 2013 - 06:23 PM

Thanks for the photos, Norm.
Michael

#38 stmguy

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Posted 31 March 2013 - 05:12 AM

Glad to help
Norm

#39 stmguy

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Posted 11 August 2013 - 08:53 AM

It's been awhile since I posted any progress on this but here are a few pics of my eyepiece holder I built, 12 volt feed to pier and a happy camper (me)
Norm

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#40 stmguy

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Posted 11 August 2013 - 08:58 AM

Holder

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#41 stmguy

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Posted 11 August 2013 - 08:59 AM

12 volt feed with fan speed control mounted on top

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#42 stmguy

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Posted 11 August 2013 - 09:01 AM

and a Very happy camper :)

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#43 EddWen

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Posted 11 August 2013 - 11:38 AM

Isn't it nice that circular hole saws have just the right amount of clearance for 2" and 1 1/4" eyepieces ;-)

Looks nice.

#44 stmguy

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Posted 11 August 2013 - 11:49 AM

Yes it is nice indeed 1

Thanks
Norm

#45 EddWen

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Posted 11 August 2013 - 02:39 PM

I like your idea for the hand controller. I'll have to remember it.

#46 Starman27

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Posted 13 August 2013 - 10:31 AM

Classy pier solution.

#47 stmguy

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Posted 13 August 2013 - 11:41 AM

Thanks ! I still need to run another conduit for my USB cable and serial cable. Not sure if I really need 120 volts at pier or not (possible a powered USB hub) which would be another run

Norm

#48 Raginar

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Posted 13 August 2013 - 07:20 PM

120 at the pier is nice.

#49 stmguy

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Posted 15 December 2013 - 01:05 PM

Got our first real snow storm for this season last night ! A White Christmas for sure
Norm

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#50 Raginar

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Posted 15 December 2013 - 01:09 PM

Cool :)






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