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

Reply
 
Thread Tools Rate Thread
  #1  
Old 02-08-2017, 11:25 AM
CantWait
Registered User

CantWait is offline
 
Join Date: Jun 2011
Location: Southport
Posts: 2
Reflector on a Dob mount?

Hi

I have a reflector languishing in storage while its eq mount is otherwise employed. Are there Dob mounts (kits) that would enable my reflector to find some use?

Thanks
CW
Reply With Quote
  #2  
Old 02-08-2017, 11:53 AM
ZeroID's Avatar
ZeroID (Brent)
Lost in Space ....

ZeroID is offline
 
Join Date: May 2010
Location: Auckland, NZ
Posts: 4,949
I presume you mean a solid tube OTA ?
I don't know of any kits but it would pretty easy to make a simple box to enclose the tube at the balance point, add bearings and build a base for it.
Sounds like a fun afternoons project to me..
Reply With Quote
  #3  
Old 02-08-2017, 11:56 AM
glend (Glen)
Registered User

glend is offline
 
Join Date: Jun 2013
Location: Lake Macquarie
Posts: 7,121
Yes there are. Orion UK offers knock down aluminium dob bases and tube rings to fit.

http://www.orionoptics.co.uk/MOUNTS/dobsonianmount.html

Better check the shipping costs.

As Brent said, you can make your own as well.

Dobstuff may also have knock down bases that are reasonable, email Dennis over there.
Reply With Quote
  #4  
Old 02-08-2017, 12:40 PM
hickny's Avatar
hickny (Peter)
Registered User

hickny is offline
 
Join Date: Jul 2005
Location: Sydney, Australia
Posts: 276
CW...
Why don't you check out http://gondwanatelescopes.com/
Alex makes Dob mounts to fit your reflector.
He can also add digital setting circles like Nexus.
Reply With Quote
  #5  
Old 02-08-2017, 02:09 PM
Wavytone
Registered User

Wavytone is offline
 
Join Date: Jul 2008
Location: Killara, Sydney
Posts: 4,147
I'd suggest something like these

http://ejamison.net/refractordobmounts.html

- the dobsonian principles apply, in respect of the bearings, but:
- needs to be raised considerably to put the eyepiece at a useable height hence a tripod or similar is required;
- needs to offset the telescope from the altitude axis so the scope can reach the zenith without hitting the tripod legs. This can be done by offsetting the scope to the rear as shown in those images, or to one side. In either case a counterweight will be needed if using a sliding bearing surface.

As Peter suggested Gondwana could make one if you don't have the skills or time.

A theodolite tripod from Bunnings would suffice for smallish scopes up to 150mm.

The Orion product won't be tall enough to accommodate a refractor and the eyepiece will be so low you'd have to put the whole thing on a table, which will be wobbly.
Reply With Quote
  #6  
Old 02-08-2017, 02:31 PM
CantWait
Registered User

CantWait is offline
 
Join Date: Jun 2011
Location: Southport
Posts: 2
Many Thanks

Lots of good suggestions - I'll do some digging.

Thanks all!
Reply With Quote
  #7  
Old 02-08-2017, 02:54 PM
brian nordstrom (As avatar)
Registered User

brian nordstrom is offline
 
Join Date: Apr 2007
Location: Perth WA
Posts: 4,374
Plus one on Alex,s mounts , he does a superb job .
Brian.
Quote:
Originally Posted by hickny View Post
CW...
Why don't you check out http://gondwanatelescopes.com/
Alex makes Dob mounts to fit your reflector.
He can also add digital setting circles like Nexus.
Reply With Quote
  #8  
Old 02-08-2017, 03:33 PM
LewisM's Avatar
LewisM
Novichok test rabbit

LewisM is offline
 
Join Date: Aug 2012
Location: Somewhere in the cosmos...
Posts: 10,389
Quote:
Originally Posted by Wavytone View Post
I'd suggest something like these

http://ejamison.net/refractordobmounts.html

- the dobsonian principles apply, in respect of the bearings, but:
- needs to be raised considerably to put the eyepiece at a useable height hence a tripod or similar is required;
- needs to offset the telescope from the altitude axis so the scope can reach the zenith without hitting the tripod legs. This can be done by offsetting the scope to the rear as shown in those images, or to one side. In either case a counterweight will be needed if using a sliding bearing surface.

As Peter suggested Gondwana could make one if you don't have the skills or time.

A theodolite tripod from Bunnings would suffice for smallish scopes up to 150mm.

The Orion product won't be tall enough to accommodate a refractor and the eyepiece will be so low you'd have to put the whole thing on a table, which will be wobbly.

The OP said REFLECTOR Wavy
Reply With Quote
  #9  
Old 02-08-2017, 05:30 PM
Wavytone
Registered User

Wavytone is offline
 
Join Date: Jul 2008
Location: Killara, Sydney
Posts: 4,147
Quote:
Originally Posted by LewisM View Post
The OP said REFLECTOR Wavy
Aaargh you're right - in which case the Orion product would be fine... or one from Gondwana.

Apologies !
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 09:50 PM.

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