From: "Ron Newman" 
To: 
Reply-To: "Ron Newman" 


I agree with that as well. I cut my truss poles to within .001" in
lenght and try and position the connecters to the same tolerance. I use
Delrin truss pole couplers to provide a means of breaking down truss poles
as well. If the couplers are done correctly you can repeat setup and keep
collimation changes to a minimum, but recollimation is wise after set up no
matter how good the system is.

Ron Newman
http://www.focuser.com

>
>>>> What do you all think?  What sort of tolerances would the
system have
to
>hold?
>
>I've played with watching collimation change by changing the truss tube
>attachment points and it is incredibly sensitive - thousandths of an inch
>makes a big unacceptable change in collimation.
>
>Mel Bartels
>
>
>
>

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