Re: [CAD_CAM_EDM_DRO] Granite router/mill

Least you should get things dead centre ...

----- Original Message -----
From: "David A. Frantz" <wizard@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, December 13, 2003 1:55 AM
Subject: Re: [CAD_CAM_EDM_DRO] Granite router/mill


> HI John;
>
> Believe it or not I was thinking along the same lines a few months
> ago. Well atleast with a slightly differrent bent, my thought being
> tomb stones from the local tomb stone suplier. Whild not sureface
> plates these stones are often nicely sized. A few things have put
> this project on hold not the least of which is time and money.
>
> There are only two ways that I see as pratcal in assemlbing such a
> machine, one is through bolts the other is cemented in anchors. A few
> years ago I had the priviledge to work on some machinery made with cast
> "granite". This synthetic material made one hell of a lathe but it is
> heavy and granite would be two. The other option seriously floated
> was concrete and making your own synthetic granite. Casting an epoxy
> machine does have its possibilities. By the way I'm not 100% sure
> that the commercial offerings are actually epoxy, the material did seem
> to be a bit harder than what I would normally expect from epoxy.
>
> Either way the materials discussed do provide a stable platform for
> mechanical integration.
>
> Dave
>
>
> Dave
>
> John Johnson wrote:
>
> >(Not the Smithy Granite)
> >
> >I'm wondering about the feasibility of building a router/mill out of
> >granite. Specifically, cheap surface plates. They have a lot of mass,
> >are inexpensive, and are flat and square, seems ideal. Use one for the
> >bed, two for uprights, and one for the cross member of the gantry. I
> >wonder how you would attach them together, and how you would attach
> >roundways and the like to them?
> >
> >Comments appreciated.
> >
> >Regards,
> > JJ
> >
> >
> >
>
>
>
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