#1  
Old 08-11-2011, 08:55 AM
Carl
Registered User

Carl is offline
 
Join Date: Apr 2006
Location: Alans Flat
Posts: 373
GSO RC8 focuser issue ??

Where the focuser screws on to the scope or extension rings the flang (for want of a better word) on the inside edge of the focuser has a 45 degree bevel.

When you screw the focuser in i dont believe that it is sitting perfectly flush with the adjoining ring end. It moves around on the 45degree bevel.

I would imagine that in order to have a perpendicular plane to the mirror you would need the focuser flush.

I am considering lathing the focuser to ensure a flush fit.
has anyone else noticed this and does it cause tilt issues in the image?

Assistance please

Regards
Carl Rainer
Reply With Quote
  #2  
Old 08-11-2011, 10:23 AM
gbeal
Registered User

gbeal is offline
 
Join Date: Oct 2004
Location: New Zealand
Posts: 4,299
Nope, and from memory mine either sits flat/flush, and is held securely onto the rear cell, or it doesn't. If it doesn't then seat it and screw the "flange" up tight, then it should/will.
In my case I was so annoyed with the stock focuser I changed it out for a Feather Touch. No more problems.
Gary
Reply With Quote
  #3  
Old 08-11-2011, 10:43 AM
Moon's Avatar
Moon (James)
This sentence is false

Moon is offline
 
Join Date: Oct 2008
Location: Melbourne
Posts: 1,147
I had the same problem. I reported it to the vendor, but was told that's how it is.
If you can lathe it to fit better, then I think it's a good idea.

James
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 02:19 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Advertisement
Meade Australia
Advertisement
Lunatico Astronomical
Advertisement
NexDome Observatories
Advertisement
Bintel
Advertisement
SkyWatcher Australia
Advertisement
Celestron Australia
Advertisement
OzScopes Authorised Dealer
Advertisement
Astronomy and Electronics Centre
Advertisement