Re: Surface plates as a base for tooling

While it will reduce the speed of drilling, I would advise using
carbide masonry bits, but not using the percussion mode of a
hammerdrill. If there is a cleave line in the stone, you run less
of a risk of fracture. If you want advice in working granite, you
might go to your local tombstome manufacturer (they work with the
material all the time).

Jeff

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "ballendo" <ballendo@y...>
wrote:

> Hello,
>
> How about flatness, stiffness, temperature stability, damping

mass...

>
> Ballendo
>
> P.S. Several recent posts tell how to attach machine parts to

Granite.

>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Ray Brandes"

<RBRANDES@G...>

> wrote:
> > Dave,
> > I wouldn't know how to attach machine components to granite. I

am

> sure
> > it can be done though. Aside from the stability offered by the
> weight,
> > I don't see any advantage over aluminum jig plate.
> > Regards, Ray