Re: [CAD_CAM_EDM_DRO] Re: Vac table, it works!

Put a big intake filter on the vaccum side of the pump ans you
can recycle the refrigerant.
Sven Peter


dougrasmussen@... wrote:

> Hi Jon,
>
> Vacuum tables are neat. I've had some interesting experiences with
> mine. First time I did any serious work was to machine the perimeter
> of a customer's 1/4" aluminum plate. I set it up with a 1" raised
> seal around the edge and no support in the center...ooops!!! As soon
> as the vacuum was pulled the plate bowed down in the center and took
> a permanent deformation.
>
> What kind of pump are you using? I've gone through a couple of the
> small oil-less Gast pumps, they can't tolerate any amount of liquid
> (coolant) entering the intake. What I'd like is a pump that will
> allow use of coolant.
>
> Doug
>
> --- In CAD_CAM_EDM_DRO@y..., Jon Anderson <janders@n...> wrote:
> > Well, got my vac table together. Probably overkill, but it works
> great.
> > Going to do a bit of replumbing so that when I remove vacuum from
> the
> > plate, it pressurizes chamber to blow my part off the locating pins.
> > Will take some pics when I'm through with the job.
> >
> > Jon
>
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