[TowerTalk] Plumbing a tower using a plumb bob

[k6ll@juno.com]

On Mon, 18 Oct 1999 21:50:46 -0400 "Tom H" <biskit@snip.net> writes:
>
>Hey 'tawkers,
>
>I'm trying to figure a way to find the center of a triangular tower so 
>I can
>drop a plumb line from near the top, down to the bottom.  This seems 
>to me
>like a good way to find true vertical other than using a transit.  
>What I'd
>like to do is to criss-cross a string from one tube to the other to 
>form a
>center cross hair of sorts, one at the top, and one at the bottom, and 
>hang
>a plumb bob from the top cross hair.  But without an opposing tube, 
>this is
>pretty hard to do.  There's gotta be a better way to do this than how 
>I'm
>figuring.  Any suggestions?

It doesn't have to go down the exact middle, as long
as the hanging point and the bullseye are consistent.
You could even run it spaced a few inches outside the
tower.

Dave Hachadorian, K6LL
Yuma, AZ
K6LL@juno.com





















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