[TowerTalk] Cadweld Question

[Pat Barthelow]

Mark Said:
What is the base material that they use to join the rod and copper wire?
>Maybe I could just braze them together using a brass filler rod.. Any
>thoughts on this?
73's de Mark N1UK G3ZZM

Hi mark and group:

Here are some videos of doing a cadweld.   Looks to me like you should 
follow Steve's rule,
Do what the manufacturer says, and be safe.  Anything else and you may be 
pushing your luck.
if you have the right materials, the graphite molds and such, it looks 
relatively straigntforward and safe...

The last video here shows a more complete ground system installaiton 
tecnique by a company, SAE
They introduce a new material I had never heard of  conducrete.... 
apparently conductive concrete, designed for the purpose...perhaps 
interesting stuff...

Cadwelding videos

http://video.google.com/videoplay?docid=-315514258775635046&q=Cadweld&total=3&start=0&num=10&so=0&type=search&plindex=0

http://video.google.com/videoplay?docid=8198499108491396647&q=Cad+weld&total=12&start=0&num=10&so=0&type=search&plindex=6

SAE Inc,  Video on Grounding, CAD WELDS
http://video.google.com/videoplay?docid=1834831159849373285&q=Cad+weld&total=76&start=0&num=10&so=0&type=search&plindex=2


Sincerely, Pat Barthelow     aa6eg at hotmail.com
http://www.jamesburgdish.org
Jamesburg Earth Station  Moon Bounce Team
http://www.cq-vhf.com

>From: "Mark Robinson" <markrob at mindspring.com>
>To: "Tower" <towertalk at contesting.com>
>Subject: [TowerTalk] Cadweld Question
>Date: Tue, 31 Jul 2007 17:20:19 -0400
>
>I was looking at the Cadweld procedure and was wondering if it is possible
>to use my oxy-acetylene torch to heat up the cadweld material instead of
>messing with pyrotechnic chemicals.
>
>What is the base material that they use to join the rod and copper wire?
>Maybe I could just braze them together using a brass filler rod.. Any
>thoughts on this?     73's de Mark N1UK G3ZZM