Re: [CAD_CAM_EDM_DRO] Re: ground plates

On Tue, Jul 09, 2002 at 08:59:15PM +0000, bjammin@... wrote:

> At 04:24 AM 7/10/02 -0000, you wrote:
> >Dave,
> >
> >To get plate that'll end up flat after grinding is a two step process.
> >First it needs to be stress relieved by a heat treater, then ground.
>
> Actually, this won't do it. Mag chuck will flatten it, then when it's
> released it will spring back some. To get flat, you need to suppport it on
> chuck so it isn't stressed in any way.
>
> Regards, Hoyt
>

I had a vertical bandsaw table Blanchard ground. I wanted to get it
flat because some idiot had tipped it over and the table had a distinct
bend in it. The mag chuck pulled it flat for grinding and, when I got
it back, it still had the bend in it. But at least it was pretty.

Paul


--
Paul Amaranth, GCIH | Rochester MI, USA
Aurora Group, Inc. | Security, Systems & Software
paul@... | Unix / Windows / NT