A diamond blade will certainly work for cutting PCB, but it would be lousy for cutting aluminum, one of the other requirements mentioned by the OP. For that, the best option would be a carbide tipped saw blade. I don't know if that is available for the dremel table saw.
I would suspect a carbide tipped saw blade might also be a good choice for cutting PCB, but I don't know that from personal experience.
--- In Homebrew_PCBs@yahoogroups.com, "sailingto" <sailingtoo@...> wrote:
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> --- In Homebrew_PCBs@yahoogroups.com, DJ Delorie <dj@> wrote:
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> > My regular HSS scroll saw blades are good for about a foot of pcb then
> > they're toast. However, that's putting all the wear on only a few teeth.
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> Yep, that has been my experience also with any saw using "saber saw" type blades. A band saw would last longer since all teeth on blade are used, but it's still going to get dull pretty quick. HSS drill bits also dull fast. Carbide bits are the ONLY way to go for me.
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> I expect a diamond saw blade is better for the same reason.
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> Ken H>
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