I don't think you will get a good and precise cut without a milling machine or saw (and I don't mean a hacksaw)
I use score-and-snap method, edges are a bit ugly but they clean up very very nice with a file (and quickly too!)
--- In Homebrew_PCBs@yahoogroups.com, "alesan" <alesan@...> wrote:
>
> How precise is a cut with a shear like that? Pictures welcome ;)
>
> Bye
> as
> - - - - -
>
> >
> > I think any small shear will work fine for FR4. I got a 12" grizzly
> > one but others here have the 8" harbor freight model.
> >
> >
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