[R-390] Tube cutting 101

mikea [email protected]
Thu, 17 Jan 2002 07:52:10 -0600


On Thu, Jan 17, 2002 at 08:42:30AM -0500, Ray, W2EC wrote:
> I seem to recall a method where you use a small wire that you hook up to
> a 12 volt car battery until its glowing good and hot, then quickly wrap
> it around the tube where you want the break to occur and dip it quickly
> into water. The hot wire heats the tube at the break point and the rapid
> cooling snaps it cleanly off. Anybody remember/try this technique?
> 
> 73, Ray  W2EC

I was wondering when someone would propose this. It works very 
well for bottles, jars, etc. -- as long as they aren't made of
zero-TC glass or quartz. A length of Nichrome toaster element
would work very well, as long as it doesn't turn out to be 
fragile. 

-- 
Mike Andrews
[email protected]
Tired old sysadmin since 1964