I know I've said it before -- but then again, I don't think anyone has actually listened! Before investing in a $300 tablesaw or a shear of doubtful capacity, consider buying a metal cutting bandsaw (NOT A WOODWORKING BANDSAW!!!) such as this one:
http://www.harborfreight.com/horizontal-vertical-metal-cutting-bandsaw-93762.htmlYes, it is going to cost more than a cheap shear or tile saw, but with a 20% off coupon (fairly common from this retailer), the price is not too bad -- and you get something that does a surprisingly good job on metal.
For PCB's, I use a 24 pitch metal cutting blade (NOT A WOODWORKING BLADE!!!) -- it cuts fast, clean, and accurately, and the blade does not get dull. I've used the same blade back and forth between PCB's and cutting metal for quite a long time.
--- In Homebrew_PCBs@yahoogroups.com, Alessio Sangalli <alesan@...> wrote:
>
> Hi, I tried to use this wet table saw, with the thin diamond blade that
> was discussed several times on this list, and the results are extremely
> disappointing.
>
> If I use a thin PCB, I think 1/32", I can use a paper cutter, it leaves
> one corner a bit bent but it's fine. With thicker, double copper double
> layer PCBs, this won't work. That is why I tried withe the tile saw but
> everytime it takes a long time to setup everything and the cut is never
> straight. Last time I even bent the blade. I think I won't try this
> method again.
>
> I guess I'll have to find space for a real shear... any advice? I do not
> think I will need a big one.
>
> bye
> as
>