Re: Need a vacuum system for acrylic sheets

Hello,

I have seen systems that used "vane type pumps" for drawing a volume
of higher vacuum than you can get in a wet vac. Gates or Gast was
the name on the side of the pumps I think. I have also seen the use
of an accumulater tank to help store a large volume of vacuum (not
that you can store a large volume of nothing, but you know what I
mean) for vacuum thermal forming machines.

Hope this helps.

Ron Steele
http://www.stirlingsteele.com/latheplans.html
http://www.stirlingsteele.com/millplans.html

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--- In CAD_CAM_EDM_DRO@yahoogroups.com, "kdoney_63021"
<kdoney_63021@y...> wrote:

>
> I have tried small vacuum pumps, with no success. I have even tried

a

> shop wet dry vac with no success. Has anyone used a venturi system
> for large sheet work? I am using bullet catches through MDF

(atually

> melamine) with about an inch of vacuum space. Is there a better

way.

> I would be interested in purchasing a system if I could find one

that

> would work with Bob Campbell's gantry design (low to the ground).