CAD CAM EDM DRO - Yahoo Group Archive

Re: Need a vacuum system for acrylic sheets

on 2005-01-11 20:33:29 UTC
--- 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).


Look at the cut path. if you can cut in such a manner as to have a
section done, you can then lay a plastic sheet over that area.

the biggest problem is that the cut area is an open window. at some
point, there is no vacuum that will work.

Considder that a 1/4 inch cutter on a 12" line has an open area of 3
square inches. that is like a 2 in open pipe. you could not afford
to run a pump that could maintain a vacuume on such an opening.

The better method is to make a sacrifical part with large spaces
under the non-cut areas. Then the cut lines are not open to the
vacuume.

Dave

Discussion Thread

kdoney_63021 2005-01-11 18:58:08 UTC Need a vacuum system for acrylic sheets Ron 2005-01-11 19:23:42 UTC Re: Need a vacuum system for acrylic sheets Robert Campbell 2005-01-11 19:48:18 UTC Re: [CAD_CAM_EDM_DRO] Need a vacuum system for acrylic sheets Bob Muse 2005-01-11 20:09:20 UTC Re: [CAD_CAM_EDM_DRO] Need a vacuum system for acrylic sheets turbulatordude 2005-01-11 20:33:29 UTC Re: Need a vacuum system for acrylic sheets kdoney_63021 2005-01-12 05:47:44 UTC Re: Need a vacuum system for acrylic sheets Bob Muse 2005-01-12 05:56:13 UTC Re: [CAD_CAM_EDM_DRO] Re: Need a vacuum system for acrylic sheets Leslie Watts 2005-01-12 06:03:58 UTC RE: [CAD_CAM_EDM_DRO] Re: Need a vacuum system for acrylic sheets Stephan Kotze 2005-01-12 07:11:54 UTC RE:Need a vacuum system for acrylic sheets turbulatordude 2005-01-12 07:55:49 UTC Re: Need a vacuum system for acrylic sheets Robert Campbell 2005-01-12 12:18:12 UTC Re: [CAD_CAM_EDM_DRO] Re: Need a vacuum system for acrylic sheets JanRwl@A... 2005-01-12 14:10:17 UTC Re: [CAD_CAM_EDM_DRO] RE:Need a vacuum system for acrylic sheets James Lewis 2005-01-14 21:19:17 UTC Re: [CAD_CAM_EDM_DRO] Re: Need a vacuum system for acrylic sheets