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.
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Re: [Homebrew_PCBs] Cutting FR4
2006-04-30 by Stefan Trethan
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