Re: ground plates

Hi Brian,

Cold rolled will not grind well. the internal pressures do funny
things. as you clena up one side, the releease of pressure makes the
other warp. Hot rolled is much better to use for that purpose.

Thanks for the suggestion. A few calls to local shops may turn up a
good deal.

Dave

--- In CAD_CAM_EDM_DRO@y..., Brian Pitt <bfp@e...> wrote:
> Dave
>
> you could get the cold rolled and have it surface ground locally
> check with a community college or Vo-Tech School to see if they
have
> a large enough grinder and you may be able to have it done for
little or
> no charge
> the schools can sometimes get heat treat shops to slip the odd piece
> into a batch to fill out the oven as well
>
> Brian
>
> On Tuesday 09 July 2002 19:28, you wrote:
> > Hi all,
> >
> > I am looking to mount some rails on the Z axis for my router table
> > and the design I came up with would benefit by the use of flat
plates.
> >
> > I found a local supplier that wanted $60.00 for a 1/2 thick part,
> > 8x16 inches. seems a little steep.
> >
> > does anyone have any other sources ?
> >
> > metalsonline has cold rolled, but did not have ground on their
site.
> >
> > Dave