ICEINSPACE
Most Read Articles
Moon Phase
CURRENT MOON Waning Gibbous
94.7%
The Sun Now
Time Zones
Sydney*
11:51 pm
Perth
8:51 pm
Auckland*
1:51 am
New York
7:51 am
Paris
1:51 pm
GMT
12:51 pm




Go Back   IceInSpace > Equipment > DIY Observatories

Reply
 
Thread Tools Rate Thread
  #1  
Old 16-06-2018, 02:49 PM
Allan's Avatar
Allan
Registered User

Allan is offline
 
Join Date: Feb 2013
Location: Newcastle
Posts: 872
ROR Dobservatory Build

I finally got started on my dobservatory build this week for the 32". I've been thinking about this project almost as long as the telescope itself. The big scope is no problem to get out and set up, even though it weighs 191kg. But I find the least enjoyable part of observing is packing everything up at 4am in the middle of winter when there's ice stuck to everything. Having the observatory is going to be a treat, as all you obs owners already know.

I expect it will take me a few months on and off to finish the build, so I'll post a few photos of the progress as it happens. I'm enjoying the cool temperature much more than the extreme heat wave I endured during January while building the shed on the property. Between that and the brown snakes, I'm surprised I'm still here.
Reply With Quote
  #2  
Old 16-06-2018, 02:51 PM
Allan's Avatar
Allan
Registered User

Allan is offline
 
Join Date: Feb 2013
Location: Newcastle
Posts: 872
Everyone needs a before photo to see where the journey started. It took me two years to finally settle on this spot in the yard.
Attached Thumbnails
Click for full-size image (1.jpg)
149.8 KB83 views
Reply With Quote
  #3  
Old 16-06-2018, 02:53 PM
Allan's Avatar
Allan
Registered User

Allan is offline
 
Join Date: Feb 2013
Location: Newcastle
Posts: 872
It took the Dingo 8 hours to dig the 39 holes. The ground is like concrete, but at least it forms a strong foundation for the structure.
Attached Thumbnails
Click for full-size image (2.jpg)
150.6 KB98 views
Reply With Quote
  #4  
Old 16-06-2018, 02:54 PM
Atmos's Avatar
Atmos (Colin)
Ultimate Noob

Atmos is offline
 
Join Date: Aug 2011
Location: Melbourne
Posts: 5,777
Looking forward to it
Reply With Quote
  #5  
Old 16-06-2018, 03:10 PM
Allan's Avatar
Allan
Registered User

Allan is offline
 
Join Date: Feb 2013
Location: Newcastle
Posts: 872
First few days of progress. The obs is elevated 800mm to get out of the near ground seeing effects which the big telescope is more sensitive to. I'm going to build an isolated pad for the dob to sit on, which will be 50mm lower than the floor height, so drops the eyepiece height a little more.

The floor system is posts set at 700mm to 1000mm in the ground, then bearers and joists attached with some nice James Hardie 22mm Scyon exterior floor sheeting. The dob pad flooring is going to be 18mm compressed concrete sheet. All the materials have very low thermal mass.

The sidewalls will be 900mm high so the dob can see over it. I'm making a steel frame roof and sidewall that will roll off the 900mm high timber wall. I got a great idea from an engineer friend in the US who built a ROR obs. He used roller bearings located inside ezy strut channel as his ROR system. I like the idea because the roof is captive and can't separate from the base of the obs.
Attached Thumbnails
Click for full-size image (3.jpg)
154.8 KB104 views
Reply With Quote
  #6  
Old 16-06-2018, 03:11 PM
Allan's Avatar
Allan
Registered User

Allan is offline
 
Join Date: Feb 2013
Location: Newcastle
Posts: 872
Good enough reason for another long drive Colin.

That's all for now. More photos in a week or so.
Reply With Quote
  #7  
Old 16-06-2018, 04:25 PM
glend (Glen)
Registered User

glend is offline
 
Join Date: Jun 2013
Location: Lake Macquarie, NSW
Posts: 4,953
Great progress Allan. I can imagine how cool it's been out there.
Reply With Quote
  #8  
Old 17-06-2018, 06:55 AM
Allan_L's Avatar
Allan_L (Allan)
Member > 10year club

Allan_L is offline
 
Join Date: Mar 2008
Location: Central Coast NSW
Posts: 3,016
Sounds amazing Allan
Reply With Quote
  #9  
Old 18-06-2018, 06:23 PM
Kunama
...

Kunama is offline
 
Join Date: Sep 2012
Posts: 3,588
Looking good Allan, keep the pics coming. Are you there for a few days of hard labour....
Reply With Quote
  #10  
Old 18-06-2018, 06:50 PM
Fizics (John)
John

Fizics is offline
 
Join Date: Feb 2013
Location: Central Coast
Posts: 109
Good to see the progress Allan. Seems you have moved the location to behind the shed or has all the grass died off? I have heard the drought is bad out that way.
Reply With Quote
  #11  
Old 18-06-2018, 08:34 PM
Allan's Avatar
Allan
Registered User

Allan is offline
 
Join Date: Feb 2013
Location: Newcastle
Posts: 872
Matt, I think Iím going to be here for a few months hard labour, just looking at the size of the project.

John, yes I moved it over by the shed, I settled on there as the best spot.
Reply With Quote
  #12  
Old 18-06-2018, 09:52 PM
glend (Glen)
Registered User

glend is offline
 
Join Date: Jun 2013
Location: Lake Macquarie, NSW
Posts: 4,953
Quote:
Originally Posted by Allan View Post
Matt, I think Iím going to be here for a few months hard labour, just looking at the size of the project.

John, yes I moved it over by the shed, I settled on there as the best spot.
Allan is that the spot where the pile of dirt was, behind the shed? Or on the "imaging field", haha?
Reply With Quote
  #13  
Old 19-06-2018, 06:56 PM
Allan's Avatar
Allan
Registered User

Allan is offline
 
Join Date: Feb 2013
Location: Newcastle
Posts: 872
Itís very close to your imaging field Glen, so I might have to find you a new spot next time.

I started on the dob pad today, in the centre of the observatory. Iíll build that while I have room and then lay out the joists around it. The four big posts are almost one metre in the ground and have used 400kg of concrete. It feels very solid, and I hope the view through the eyepiece is the same.
Reply With Quote
  #14  
Old 23-06-2018, 04:28 PM
Allan's Avatar
Allan
Registered User

Allan is offline
 
Join Date: Feb 2013
Location: Newcastle
Posts: 872
Another week of building completed. I can testify that it is still fairly dark and very, very cold at 6:30am when work begins. I'm also reviewing my labourers rate as I think he's been slacking on the job.
Attached Thumbnails
Click for full-size image (1.jpg)
193.5 KB75 views
Reply With Quote
  #15  
Old 23-06-2018, 04:33 PM
Allan's Avatar
Allan
Registered User

Allan is offline
 
Join Date: Feb 2013
Location: Newcastle
Posts: 872
The dob pad took two days to build, by the time I got the four big posts concreted in the ground with over 400kg of concrete, and then all the frame work constructed around it. I've carried this idea around with me for a couple of years now, and I'm happy it's turned out so nice and solid.
Attached Thumbnails
Click for full-size image (3.jpg)
147.4 KB79 views
Reply With Quote
  #16  
Old 23-06-2018, 04:45 PM
Atmos's Avatar
Atmos (Colin)
Ultimate Noob

Atmos is offline
 
Join Date: Aug 2011
Location: Melbourne
Posts: 5,777
I think your labourer needs a Scooby Snack.
Reply With Quote
  #17  
Old 23-06-2018, 04:50 PM
Allan's Avatar
Allan
Registered User

Allan is offline
 
Join Date: Feb 2013
Location: Newcastle
Posts: 872
Is that like the dog version of the Snickers ad?
Reply With Quote
  #18  
Old 23-06-2018, 05:16 PM
Merlin66's Avatar
Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 6,628
Allan,
Just read about the captive wheels in C channel...
I used this up at Heathcote and I use it successfully on the Mainsail ROR which houses my NEQ6/ C11.
Recommended.
Reply With Quote
  #19  
Old 23-06-2018, 05:47 PM
theodog's Avatar
theodog (Jeff)
Every photon is sacred !

theodog is offline
 
Join Date: Oct 2007
Location: Coonabarabran
Posts: 1,020
Quote:
Originally Posted by Allan View Post
The dob pad took two days to build, by the time I got the four big posts concreted in the ground with over 400kg of concrete, and then all the frame work constructed around it. I've carried this idea around with me for a couple of years now, and I'm happy it's turned out so nice and solid.
Nice progress, looks good & at least one of you is keeping fit during construction.


Quote:
Originally Posted by Merlin66 View Post
Allan,
Just read about the captive wheels in C channel...
I used this up at Heathcote and I use it successfully on the Mainsail ROR which houses my NEQ6/ C11.
Recommended.
Sort of like a very large version of slides for car/camper fridges are a great idea.
Reply With Quote
  #20  
Old 23-06-2018, 05:56 PM
Jen's Avatar
Jen
Moving to Pandora

Jen is offline
 
Join Date: Jan 2008
Location: Swan Hill
Posts: 7,005
Awesome Allan how exciting is it 🤪🤪 I look forward to watching your progress 👌👌👌good luck buddy
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 10:51 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Advertisement
NexDome Observatories
Advertisement
FLI Cameras and Imaging Accessories
Advertisement
OzScopes Authorised Dealer
Advertisement
SkyWatcher 2018 Catalogue
Advertisement
Bintel
Advertisement
Lunatico Astronomical
Advertisement
Interest Free Finance
Advertisement
SkyWatcher WiFi Adaptor
Advertisement
Astronomy and Electronics Centre
Advertisement