Homebrew PCBs

On Mon, 01 May 2006 03:21:34 +0200, William Kroyer  
<william.kroyer@...> wrote:

> I've tried using a 7" cutting wheel on my circular saw.  After about
>
> 24" they tear free from the
>
> center mount.  I went through 3 of them this morning and made 1.5 cuts.
>
> The last time I cut up
>
> a sheet I used a regular router bit.  Needless to say the bit was dead
>
> by the time I was done.  I
>
> also tried a 1/8" mill end I had gotten from somewhere locked in my
>
> router.  It did a really nice
>
> job for about 12" then snapped.  I'm thinking a beefier mill end would  
> work.


Any router that isn't carbide will dull real quick.
If you use a carbide one you would probably need automated movement to  
prevent it breaking, or one that is very large and wasteful.

A shear will not dull noticeably even after many cuts. I can still cut  
paper with the hand shear i used for years. Not with the lever shear, but  
that never did cut paper.

ST