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m.tweedy

Octagonal Observatory

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poogle    45

Looks like a real quality build, well done!

How is the roof gonna open and what material will be the top layer of the roof?

/Patrik

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Putaendo Patrick    1,116

Very nice, I'm looking forward to seeing this finished!

Where did you get the design from? Were you influenced by the "Romsey Observatory" which was popular in the 19th and early 20th centuries?

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m.tweedy    363

bit more progress

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now with 18mm exterior ply  (on its side showing all of the temporary bracing).

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galvanized ring beam going on

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first of the 16 bearings 

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the side rollers assembled ready to attach.

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the theory is they will roll along the edge of the galvanized beam to hold the roof in position.

THE BIG LIFT IS WEDNESDAY (weather dependent).

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Ouroboros    808

Wonderful! It's looking good.  I admire those who can do DIY projects like this and would love to have the confidence to do it myself. 

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m.tweedy    363

A bit more progress and an alternative use for a clothes prop

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Front lift off cover with radiator hangers. More work and a little rethink needed

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Door now on

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Little Narnia door that allows me to access the side of the shed

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Roof due to be skinned in next 2 weeks

 

 

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m.tweedy    363

Internal insulation on the walls done. The spare bits of ply are being trimmed to make the internal walls

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Roof now skinned. It's rotates fine on the 16 bearings but the front hatch is heavy to lift off. A little 12v winch to help lower it springs to mind along with some gas struts to raise the top

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MarsG76    1,327

Looks cool.... I also went for a nice small cosy kind of obsy... but instead of just the roof opening, I made the whole half of the hutt slide off to reveal the sky.

 

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Merlin66    764

When I saw the title of this thread I immediately thought of the OctoDome I build back in the 80's.

Easy to build, flat panels, two-section wide slit; doors for low altitude objects and roll back top shutter for the rest....

Even added some windows! (Reject toughened, double glazed units for the high speed train project!)

Worked very very well for over ten years.

 

 

Observatory 1984.jpg

canopus320_1984.jpg

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pete_l    511
5 hours ago, Merlin66 said:

When I saw the title of this thread I immediately thought of the OctoDome I build back in the 80's.

Yes. I like octagonal observatories. You get 20% more inside space for the same sized walls.

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m.tweedy    363
On 10/09/2017 at 01:20, Merlin66 said:

When I saw the title of this thread I immediately thought of the OctoDome I build back in the 80's.

Easy to build, flat panels, two-section wide slit; doors for low altitude objects and roll back top shutter for the rest....

Even added some windows! (Reject toughened, double glazed units for the high speed train project!)

Worked very very well for over ten years.

 

 

Observatory 1984.jpg

canopus320_1984.jpg

Now thats a proper Observatory and scope

 

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Merlin66    764

Michael, Thanks!!

I used the "Canopus 320" which I built in the late 70's for visual SN work. I checked hundreds of charts for Gregg Thompson and the "Supernova Search Charts"

I could get 15.5 mag limit from 15Km north of the city of Melbourne Australia.

Haaaa those were the days!!

 

SNChart_1365small.jpg

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Ouroboros    808

@m.tweedy.  Marvellous and well executed project!  I'm so often amazed at the DIY skills of many amateur astronomers. It must be above the average of the general population I would have thought.  I wonder why that is?   For some reason the confidence and ability to do something like this passed me by. :)

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m.tweedy    363
6 hours ago, Ouroboros said:

@m.tweedy.  Marvellous and well executed project!  I'm so often amazed at the DIY skills of many amateur astronomers. It must be above the average of the general population I would have thought.  I wonder why that is?   For some reason the confidence and ability to do something like this passed me by. :)

Or in my case you employ a Carpenter as i have neither the skills or the physical ability (back bolted) since my operation.

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