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Re: primary/mmc stuff



     Leave yourself an extra bit of plastic on the top of the support.  
     Drill your holes, then saw off the top of the support so that about 
     60%-70% of the hole is left. This will let you snap the tubing into 
     the support. The extra flash at the top of the hole will secure the 
     tubing.  like this.  This is worth practicing on a piece of scrap 
     first, but it's easy and works like a charm.
     
     ____  ______  ____
        /  \    /  \
        \__/    \__/
     
     I just used nylon bolts up through my top deck into tapped holes in 
     the bottoms of the supports.
     
     paul mathus


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Subject: primary/mmc stuff
Author:  "Tesla list" <tesla-at-pupman-dot-com> at INTERNET
Date:    7/31/00 11:42 PM


     
I've decided on a flat spiral made of copper tubing for my primary. I would 
have gone with a more "novel" design approach but i wanted to have a shining 
example of a modern TC.  I'm sick of messing with flashovers and 
overcoupling...
I got a lexan cutting board from my local Big-K (K-Mart) for $8 which I will 
use as primary supports. I'm planning on making one as seen here: 
<http://www.fwpd-dot-net/dona/tesla/primary.htm>http://www.fwpd-dot-net/dona/tesla/ 
primary.htm 
Only, i'm not going to paint mine and it will be on a plywood table. 
How far does the strike rail have to be before the primary arcs to it?  I'm 
thinking only an inch and a half... Does that sound acceptable?
How, exactly, would one mount these supports other than screws? I was thinking 
of cutting little blocks of HDPE and gluing them to the side of the supports 
and then using nylon bolts to hold them down... Just a thought.
Thanks,
     
        -Michael