> I use the diamond setup you reference and I think it is the most cost effective solution for cutting PCBs. Proxxon makes superior products, but I don't think their saw is suitable for cutting dry abrasive materials like FR-4. The dust will take out the bearings pretty fast. Also, it appears that the saw is underpowered. See the one star review here,
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Some use Wet Tile saw to keep the dust down. I have used table saw but dust is a problem. You need to setup some good dust collection and Yes put a filter over the air intake of the motor but it may still get into the front bearing good dust collection helps on that. I change to a Shear but tends to be hard to get nice square cuts on FR4 because sometimes the board seems to slip as your cutting it. Been thinking about getting a table saw setup again to do my cutting with a better designed dust collection. Get you or make some kind of panel sled to use on the table saw, maybe design some stops on to it if you do repeated board sizes.
Ben