Go Back   IceInSpace > Equipment > DIY Observatories

Reply
 
Thread Tools Rate Thread
  #81  
Old 10-03-2021, 02:30 PM
bojan's Avatar
bojan
amateur

bojan is offline
 
Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 6,627
Quote:
Originally Posted by Merlin66 View Post
Bojan,
For my ROR I use a continuous cable connected to both sides of the roof, running over two pulleys and currently manual, but could easily be converted to a drive system. Basic and functional.
So far I was using only my hands (after climbing on a chair), and it wasn't hard to do at all.. At the moment I have 20mm straps from each side of the ROR that will go on the winch.
However, I want all that to be automated one day.. so I am taking my time with the project, I don't want to do something to prevent that final goal.. because I know myself (I tend to get used to things.. even if they are not too comfortable. And, recently I like to challenge myself..)
Reply With Quote
  #82  
Old 11-03-2021, 10:32 AM
bojan's Avatar
bojan
amateur

bojan is offline
 
Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 6,627
Motor is on the winch...
Next step is to think about forward/backward switch.
Most likely it will be custom made mechanical unit at first (3D printed collar mounted at motor bottom, using existing solder terminals as switch contacts).
The final solution will be H-bridge with suitable interface (USB, to be controlled by comp).
Attached Thumbnails
Click for full-size image (DSC_0679.jpg)
201.2 KB73 views
Reply With Quote
  #83  
Old 11-03-2021, 10:34 AM
JA
.....

JA is offline
 
Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 2,692
Good to see your industriousness

Best
JA
Reply With Quote
  #84  
Old 12-07-2021, 11:42 AM
bojan's Avatar
bojan
amateur

bojan is offline
 
Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 6,627
C11 in action (visual for now)... finally.
Attached Thumbnails
Click for full-size image (Parked.jpg)
79.7 KB107 views
Click for full-size image (Waiting_for_Saturn.jpg)
63.2 KB94 views
Reply With Quote
  #85  
Old 12-07-2021, 12:36 PM
Sunfish's Avatar
Sunfish (Ray)
Registered User

Sunfish is offline
 
Join Date: Mar 2018
Location: Wollongong
Posts: 1,823
Very cool. Is that a. Brush seal on your ROR.?
Reply With Quote
  #86  
Old 12-07-2021, 01:03 PM
bojan's Avatar
bojan
amateur

bojan is offline
 
Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 6,627
Quote:
Originally Posted by Sunfish View Post
Very cool. Is that a. Brush seal on your ROR.?
Yes, courtesy Bunnings.. Work very well.

Couple of drops of water on the floor sometimes is due to condensation, I still have to sort it out (with polystyrene sheets most likely).
Reply With Quote
  #87  
Old 12-07-2021, 01:26 PM
Merlin66's Avatar
Merlin66 (Ken)
Registered User

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 8,670
Looking good.
Enjoy the benefits of your hard work.
Reply With Quote
  #88  
Old 12-07-2021, 06:18 PM
xelasnave's Avatar
xelasnave
Gravity does not Suck

xelasnave is offline
 
Join Date: Mar 2005
Location: Tabulam
Posts: 15,593
Good on you Bojan, I am very happy for you.
Alex
Reply With Quote
  #89  
Old 12-07-2021, 10:56 PM
Sunfish's Avatar
Sunfish (Ray)
Registered User

Sunfish is offline
 
Join Date: Mar 2018
Location: Wollongong
Posts: 1,823
Yes , that sounds like it would help along with a vapour barrier under the styrene to keep the warm internal air off the metal roofing. Perhaps taping up the styrene joints would work.

Quote:
Originally Posted by bojan View Post
Yes, courtesy Bunnings.. Work very well.

Couple of drops of water on the floor sometimes is due to condensation, I still have to sort it out (with polystyrene sheets most likely).
Reply With Quote
  #90  
Old 13-07-2021, 03:08 PM
xelasnave's Avatar
xelasnave
Gravity does not Suck

xelasnave is offline
 
Join Date: Mar 2005
Location: Tabulam
Posts: 15,593
Bojan I think having a water proof cover over things is a good idea. It is easy to think that its inside so there is no need but I feel such is a sensible approach... minimises dust if nothing else.

I like using that aluminium foil stuff with foam on one side doubled so you have foil on both sides as it is not only water proof but a very good insulator.
Alex
Reply With Quote
  #91  
Old 13-07-2021, 03:41 PM
bojan's Avatar
bojan
amateur

bojan is offline
 
Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 6,627
Alex,
We are like-minded :-)
I actually use exactly that (moisture barrier stuff that goes under the floating flooring).


BTW, I also decided to rotate OTA by 180 so the finder is now closer to mount and lower, I can use it on lower objects (this has yet to be tested).

I will use the other (right) side of ADM plate for guiding scope.
Attached Thumbnails
Click for full-size image (cover.jpg)
60.4 KB74 views
Click for full-size image (c_168.jpg)
142.7 KB63 views
Reply With Quote
  #92  
Old 13-07-2021, 03:58 PM
xelasnave's Avatar
xelasnave
Gravity does not Suck

xelasnave is offline
 
Join Date: Mar 2005
Location: Tabulam
Posts: 15,593
Yes thats the stuff.
The girls here decided they did not like the fake plastic "timber" flooring and as they will just ripped it up...and thats how I discovered it... there was heaps of it and I used it on all sorts of things, which I cant remember, maybe in the small observatory??? and had to buy a big roll finally for the scopes...
But as I said I am so very happy to see you get this done ...now you must work less and use it...good luck.
Alex
Reply With Quote
  #93  
Old 03-11-2021, 10:13 AM
bojan's Avatar
bojan
amateur

bojan is offline
 
Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 6,627
All is OK with mt Pleasant Obs.. after 4 months of lockdown and earthquake and couple of pretty strong storms

BTW, I found something better for dew shield - 10mm foam covered/reinforced with Al foil. It can be sprayed with black paint to improve blackness of the foam surface (it is dark grey).
Attached Thumbnails
Click for full-size image (IMG_20211030_175921.jpg)
172.1 KB64 views
Click for full-size image (IMG_20211031_202139.jpg)
162.4 KB61 views
Click for full-size image (IMG_20211031_202252.jpg)
165.3 KB58 views

Last edited by bojan; 03-11-2021 at 10:39 AM.
Reply With Quote
  #94  
Old 03-11-2021, 07:12 PM
xelasnave's Avatar
xelasnave
Gravity does not Suck

xelasnave is offline
 
Join Date: Mar 2005
Location: Tabulam
Posts: 15,593
Very happy to hear that all was ok.
Alex
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 12:50 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
Advertisement
Testar
Advertisement
Limpet Controller
Advertisement
ScopeDome Australia
Advertisement
Bintel
Advertisement
Astronomy and Electronics Centre
Advertisement