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Forum topic by Gregn posted 05-01-2010 01:54 AM 1271 views 0 times favorited 6 replies Add to Favorites Watch
View Gregn's profile


1642 posts in 2984 days

05-01-2010 01:54 AM

Topic tags/keywords: resource question router shaping milling

Has anyone used granite to make a router table top, and what was needed to machine the granite for the top to accommodate the router and mounting holes and to chamfer the edges? I have an opportunity to acquire a piece for a top cheap if I want it.

-- I don't make mistakes, I have great learning lessons, Greg

6 replies so far

View rhett's profile


742 posts in 3668 days

#1 posted 05-01-2010 02:07 AM

Right angle grinder and a diamond blade will cut it. As far as actually milling it into a router table, you are talking about a very nice/expensive waterjet router. They are good for sharpening plates.

-- Doubt kills more dreams than failure.

View Percula's profile


9 posts in 2962 days

#2 posted 05-01-2010 02:31 AM

Take it to a counter top shop and have them water jet the cut outs and holes. They will also have the diamond tools to make the support lip for the plate.

Put a rubber O-ring under you router plate to avoid those nasty vibes, as was noted above.

Also seal the surface, granite sucks up anything wet dripped on it.

View poopiekat's profile


4355 posts in 3735 days

#3 posted 05-01-2010 02:54 PM

I’m with skeezics on this. Corian scraps aren’t too hard to come by, and it machines nicely with a router. I found it noisy with a B&D router, but much less noisy with my Bosch routers.

-- Einstein: "The intuitive mind is a sacred gift, and the rational mind is a faithful servant. We have created a society that honors the servant and has forgotten the gift." I'm Poopiekat!!

View davidpettinger's profile


661 posts in 3201 days

#4 posted 05-01-2010 05:50 PM

I got to go with skeezics and poopiekat on this. Granite is nice and all that, but unless you have diamond cutters, grinders and copious water cooling in your shop, well, Corian is a lot easier and the results well just be fantastic.

-- Methods are many,Principles are few.Methods change often,Principles never do.

View Gregn's profile


1642 posts in 2984 days

#5 posted 05-01-2010 10:27 PM

Thanks for the input guys. What seems like a good deal for the granite, isn’t such a deal in what I would need for tooling it.

-- I don't make mistakes, I have great learning lessons, Greg

View Ger21's profile


1074 posts in 3132 days

#6 posted 05-02-2010 01:29 PM

I’d never attempt cutting it yourself, but a top shop with a CNC would probably charge about $200-$300 to do it.

I work with corian a lot, and wouldn’t recommend it for a top, unless you have a well supported plywood or MDF sub top underneath it. Corian flexes easily, and will sag. It also can warp, and often will not be flat.

-- Gerry,

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