Go Back   IceInSpace > Equipment > DIY Observatories
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 29-06-2013, 06:03 AM
petershah's Avatar
petershah (Peter Shah)
Registered User

petershah is offline
 
Join Date: Jun 2012
Location: United Kingdom
Posts: 406
new shutter on my roll off roof

I've been meaning to get around to sorting out the shutter on the roll off roof it has been a bit of a pain to open and close.
What better use of these light summer nights than to refine the kit.
This is what I've come up with....
http://www.youtube.com/watch?v=0s2Z2...ature=youtu.be

here is another quick tour of the Observatory showing a little more of the scope and location. Don't look too close, I'm not a carpenter but I will be tidying a few things up. BTW that great big tree will be coming down....not only because it is directly South but because its too close to the house .
http://www.youtube.com/watch?v=FJTPmIEPKeU
Reply With Quote
  #2  
Old 01-07-2013, 07:52 AM
Lee's Avatar
Lee
Colour is over-rated

Lee is offline
 
Join Date: Sep 2005
Location: Newcastle, Australia
Posts: 2,414
Nicely done.... How weatherproof is the end with the raising flap?
Reply With Quote
  #3  
Old 01-07-2013, 08:34 AM
petershah's Avatar
petershah (Peter Shah)
Registered User

petershah is offline
 
Join Date: Jun 2012
Location: United Kingdom
Posts: 406
Its not bad, we get sideways rain here regular and 3ft of snow last winter.......never been wet inside at all.....the only thing is wasp nests and it can get dewy, so I have heaters which stay on while the scope is parked and its very important to have good ventilation to let out the damp....I also have airflow under the observatory.
Reply With Quote
  #4  
Old 01-07-2013, 12:26 PM
alistairsam's Avatar
alistairsam
Registered User

alistairsam is offline
 
Join Date: Nov 2009
Location: Box Hill North, Vic
Posts: 1,837
That's a cool idea. any details on how it was built?
would love to see some close up pics on the mechanism.

apart from a cloud sensor, are there any rain sensors normally used?

the other night it looked to be a clear night, but started drizzling. so I'm guessing a rain sensor would also be needed to close the dome/shutter.

Cheers
Alistair
Reply With Quote
  #5  
Old 02-07-2013, 05:56 AM
petershah's Avatar
petershah (Peter Shah)
Registered User

petershah is offline
 
Join Date: Jun 2012
Location: United Kingdom
Posts: 406
Hi Alistair, yep it does have a rain sensor. Ill sort out some pics and post them for you. Is there anything in particular you would like to see???....its really a simple design, using heavy duty "V" pulleys on an angle iron rails for the roof then a cantilever and balanced shutter. The roof is operated by a garage door opener which is wired into a universal Velleman board and is run by lesvedome software which is Ascom compatible ...see link http://www.dppobservatory.net/DomeAu...DomeDriver.php
all automated with CCD Autopilot....it will park the scope before closing the roof, but I will be fitting a safety switch that cuts power to the roof when the scope is pointing up.
Reply With Quote
  #6  
Old 02-07-2013, 10:39 AM
alistairsam's Avatar
alistairsam
Registered User

alistairsam is offline
 
Join Date: Nov 2009
Location: Box Hill North, Vic
Posts: 1,837
Thanks Peter,

which rain sensor do you use?
I was interested in seeing how it drives both at the same time and also the cantilever assembly.

Cheers
Reply With Quote
  #7  
Old 02-07-2013, 08:44 PM
petershah's Avatar
petershah (Peter Shah)
Registered User

petershah is offline
 
Join Date: Jun 2012
Location: United Kingdom
Posts: 406
Here are some pics showing the cable system and mechanism when the roof is open and closed. I've also shown the heavy duty wheels and track.

this is the rain detector I use, but it seems to have trouble if the rain is very fine.
http://www.youtube.com/watch?v=ZQv5sAe6RfQ

http://www.ebay.co.uk/itm/RAIN-SENSO...item2a2e65f371

let me know your thoughts
Attached Thumbnails
Click for full-size image (roof closed.jpg)
228.7 KB28 views
Click for full-size image (roof open.jpg)
228.5 KB27 views
Click for full-size image (rail 1.jpg)
190.8 KB29 views
Click for full-size image (rail 2.jpg)
187.4 KB28 views
Reply With Quote
  #8  
Old 03-07-2013, 03:47 AM
petershah's Avatar
petershah (Peter Shah)
Registered User

petershah is offline
 
Join Date: Jun 2012
Location: United Kingdom
Posts: 406
Quote:
Originally Posted by Lee View Post
Nicely done.... How weatherproof is the end with the raising flap?
just found this photo.....this was before the weather got bad ....everything stayed dry....although the shutter was not counter weighted in this pic the system used the same shutter.
Attached Thumbnails
Click for full-size image (obsy in the snow.jpg)
170.7 KB18 views
Reply With Quote
Reply

Bookmarks


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 02:00 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement