Re: [ATM] Flex Rocker Question

[Dave Smith <smithersscope@yahoo.com>]

I'm guessing, but I think he means 'does the flex
rocker shift undesireably on the ground ring?'. In my
experience, I had to go back and make at least one of
my three contacts adjustable to eliminate play between
these two components (I have 3 roller bearings mounted
on the bottom of the flex rocker which ride against
the inside of the ground ring.) I still experience a
tiny amount of shift that is most annoying/noticeable
when observing near azimuth.
If the inside surface of the ground ring were, say, a
metal surface, my adjustable bearing would eliminate
this "slop". My routing job on the inside of the
circle wasn't sloppy, but there's just enough play in
the plywood grain to cause "issues". I know what I
need to do to fix it at least! The "to-do" list is
quite long.
Hope that helps.
Dave
--- Mel Bartels <mbartels@bbastrodesigns.com> wrote:
> > my next project. I wanted to ask if your ground
> board swims around a bit
> > while moving the scope? Three points define a
> plane and I need to know if
> 
> Swims?  What does that mean, can you elaborate?  Use
> a circular ground ring, 
> not a ground board, for a flex rocker.  Google on
> flex rockers or see 
>
http://www.bbastrodesigns.com/tm/trilateral/trilateral.html
> 
> Mel Bartels 
> 
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> ATM mailing list http://www.atmlist.net/
> 


		
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