Homebrew PCBs

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.

Lez wrote:

> I have just found a uk site that do a spongless cartirdge for my
> printer (t007) (wished I could find a t009)
>
> They also sell pigment inks etc so I thought I was onto a winner, but
> I read this on their...
> <quote>
>
> These tools are required to fill the spongeless cartridges (you cannot
> use an ordinary syringe). We supply one with each cartridge set but
> you may want additional tools so you don't have to wash them between
> colours.
>
> They are like syringes but have a hollow plunger so that air can be
> withdrawn from the cartridge when the plunger is pulled out and then
> replaced with ink when the plunger is pushed in. They come with a long
> metal tube to allow ink to be loaded from thebottom of our 100ml
> bottles.
>
> </end quote>
>
> Err, dont you just inject the ink into the cartridge ?
>
>
>
> --
>
>
>
> Lez
>
> - Looking for early starwars (episode 4, original starwars)
> recordings, even pirate
> -
> - I dont need your originals just some information about running time
> - and scene cut points
> -
> -
> - also looking for a car, silver or white, 4 doors -
> - diesel with a bosch pump, abs and pas  -
> - aircon would be nice, and not a ford       -
>
>
> Be sure to visit the group home and check for new Links, Files, and 
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>
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