Notifications
Clear all

Geodimeter tribrach question

5 Posts
4 Users
0 Reactions
2 Views
(@rankin_file)
Posts: 4016
Topic starter
 

Last winter, I bought a mirror, tribrach adaptor, and tribrach on Ebay. Turns out it is a Geodimeter tribrach for a 600 series inst. I've never adjusted this type of tribrach and was wondering if anyone out there has a sheet on them. Thanks in advance.
M

 
Posted : March 25, 2011 5:55 pm
(@dane-ince)
Posts: 571
Registered
 


is this what you describe?
1. level across both axises
2. turn 180
3. adjust out half the error
4.turn 180
5. relevel
6 turn 180 repeat adjustment till you can turn the adapter and the bubble stays centered.

 
Posted : March 25, 2011 7:39 pm
(@jim-frame)
Posts: 7277
 

Someone -- I regret to say that I've forgotten who -- was kind enough to provide the sketch below when I posted a similar question a year or two ago:

 
Posted : March 25, 2011 8:59 pm
(@rankin_file)
Posts: 4016
Topic starter
 

Thanks Jim, That's what I was looking for.

 
Posted : March 26, 2011 6:38 am
(@ken-salzmann)
Posts: 625
Registered
 

You will find a long allen wrench really simplifies things too.

KS

 
Posted : March 26, 2011 6:40 am