I use a hand lever shear, like this one:
<
http://www.schaller-maschinen-ag.ch/Handhebelblechschere_001.jpg>
they are relatively cheap compared to bench shears that have a long blade.
The material can run through with some bending for long cuts.
It seems shear-type cutting lasts with FR4, any sawing is a pain unless
you use carbide blades.
Used handheld shears before that.
A small circular saw with a carbide blade (full blade not only teeth
inserts) did make the best cuts for me, but lotsa noise and dust. I don't
want to have to don a spacesuit with earmuffs only to cut a PCB, so the
lever shear it is...
ST
On Sun, 30 Apr 2006 18:33:18 +0200, William Kroyer
<
william.kroyer@...> wrote:
> This may seem like a silly and basic question but, I've got a bunch of
>
> 36"X48" sheets
>
> of FR4 that I need to cut down. Nothing I've tried seems to work. At
>
> least not for long.
>
> Initially, I tried just using my jig saw with a metal cutting blade on
>
> it. I went through 2
>
> and only got about 1/4" out of each. Then I tried just using my
>
> router. I killed the bit
>
> but was able to cut up 1.5 sheets before doing so. Today I picked up
>
> some 7" cut-off
>
> wheels for my circular saw. Each wheel cut about 24" each before
>
> tearing itself free
>
> of the mount.
>
>
> Any suggestions? I know for smaller pieces I could probably use a
>
> paper cutter as a
>
> cutting shear but I don't know I'm going to get these large pieces cut
> down.