Re: Machining Lexan

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Mark Broker <mbroker-at-thegeekgroup-dot-org> 

My current TC in progress uses a 1/2" Lexan primary base with 1/4" Lexan 
standoffs.

ftp://geek-at-24.208.10.186/PA260008.JPG
ftp://geek-at-24.208.10.186/PA260009.JPG
ftp://geek-at-24.208.10.186/PA260010.JPG
ftp://geek-at-24.208.10.186/PA260011.JPG

Use of sharp tools is required, and make sure that table saw blades aren't 
gummed up.  Leave the protective layer of plastic or paper on until all 
machining work is finished - Lexan scuffs *very* easily.  I was able to 
remove minor scuffs with a propane blowtorch with a little practice, but 
major scratches almost require a hydrogen/oxygen flame to remove.

FWIW, a 1/4" spacing betweeh tubes (1/2" center to center) is all that is 
really necessary except perhaps to increase coupling.

Good Luck

Mark Broker
Chief Engineer, The Geek Group


On Sat, 27 Dec 2003 12:38:07 -0700, Tesla list <tesla-at-pupman-dot-com> wrote:

>Original poster: "Michael S" <me-at-vduo-dot-com> I have some ½ inch lexan (a 
>little thick, but the price was right) which I
>had planned on using in my primary.  I had planned on spacing some ¼ inch
>copper tubing ½ inches apart, but I have never worked with lexan before, and
>I wanted to know (since it seems like a popular primary form) what other
>people had done in order to notch it.  Thanks!
>