RE: [CAD_CAM_EDM_DRO] Re: vacuum hold down

-----Original Message-----
From: Mark [mailto:mfraser@...]
Sent: 10 March 2005 12:41
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: vacuum hold down


If you mill out the surface so that only very thin lands are left to support
the workpiece, the holding power will be a lot higher.
Pounds per square inch and all that. If you don't believe me, try it with
only one hole uncovered on a piece the size of your vac table..... Small
holes are fine, if there's no leakage, the "pressure" inside the resulting
"chamber" will be uniform, just spread over a much larger area... /mark

> Date: Thu, 10 Mar 2005 10:00:12 -0000
> From: "Dave Fisher" <dave@...>
> Subject: RE: vacuum hold down
>
> We built a vacuum table with great success I have put some details on
>
> www.distel.co.uk/vac_table.htm
>
> Rgds
>
> Dave Fisher
>

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