On Thu, 22 Sep 2005 02:26:03 GMT, "CW" wrote:


"Frank Boettcher" wrote in message
.. .


1. Granite
Hasn't been tried, but I suspect far two expensive and difficult to
machine and tap.

Not to expensive at all. ore so than cast iron but not unreasonable.
Machines easily. Tapped holes are done about the same as tapped holes in
concrete. Drill a hole, install insert. Impractical though from a strength
standpoint. To brittle if thin enough for a table saw top.


full manufactured cost for a cast iron table about $.60/lb which makes
a table for a 10" saw about $11/sq. ft. I doubt seriously if you can
take a slab of granite, machine an insert opening, miter slots, bore
holes and set inserts for cabinet attachment holes, guide rail
attachment holes and even come close to that cost.

And you're right, way too brittle.