Darryl Keil Last Activity 2026-01-12 8:29 AM
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Stanley Niemiec

 
Subject : Sandbagging
Posted : 2000-09-14 10:35 AM
Post #30757

Darryl:Thanks for your prompt reply to my previous questions!When veneering irregular or odd shapes, has anyone used sandbags for support or fill for forms. I was thinking about how one might veneer the outside of a hollow cylinder -- I though that with a cradle of wood forms on the ends I could have sandbags for support of the bottom half as well as sandbags in the hollow cylinder, such it might provide good support/uniform pressure distribution and potentially prevent collapse/distortion of the forms and cylinder. Seems to me the sand would act like a fluid and there would be uniform pressure distribution all directions. I guess the trick would be to predetermine the compression rate of the sand and therein the extra amount of sand required so the bag in the hollow center would still protrude out the endsHas anybody tried this approach? Or is truly a ground breaking (pun intended) innovation??



 
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Darryl Keil

 
Subject : Sandbagging
Posted : 2000-09-14 8:57 PM
Post #30761 - In reply to #30757

Dear Stanley,I think you would find it more trouble than its worth. Not only would getting just the right amount inside a cylinder be difficult, keeping the sand contained would have to be a pain. There are really easier ways, like making ribs for your cylinder or you may want to consider our inflatable bladders that go inside forms and cylinders. When used together with vacuum they self inflate providing perfectly balanced pressure and conform to most any shape. Check them out on the other part of this web site.SincerelyDarryl Keil: Darryl:: Thanks for your prompt reply to my previous questions!: When veneering irregular or odd shapes, has anyone used sandbags for : support or fill for forms. I was thinking about how one might : veneer the outside of a hollow cylinder -- I though that with a : cradle of wood forms on the ends I could have sandbags for support : of the bottom half as well as sandbags in the hollow cylinder, such : it might provide good support/uniform pressure distribution and : potentially prevent collapse/distortion of the forms and cylinder. : Seems to me the sand would act like a fluid and there would be : uniform pressure distribution all directions. I guess the trick : would be to predetermine the compression rate of the sand and therein : the extra amount of sand required so the bag in the hollow center : would still protrude out the ends: Has anybody tried this approach? Or is truly a ground breaking (pun : intended) innovation??




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