Recent content by bobbybloom

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    Building a flat rectangular vacuum chamber

    If I were to use a multi-walled polycarbonate or acrylic sheet for this application, how would that affect my calculations. The multi-walled sheets are built with a cell like structure in various thicknesses. Could I simply use the thickness of the multi-walled sheet as though it were a solid...
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    Building a flat rectangular vacuum chamber

    Thanks for the help. I've been toying with the efunda as well as another beam calculator and now I'm getting a better idea of the forces that would apply. If the structure were supported by internal pillars every 12 inches, would that change the effective dimensions for calculation of...
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    Building a flat rectangular vacuum chamber

    That sounds like a very handy calculator. Could you provide me with a link? I can't seem to find it.
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    Building a flat rectangular vacuum chamber

    Thank you for the help and reality check, I will post the question in the Engineering Forum for further assistance.
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    Building a flat rectangular vacuum chamber

    I understand the cylindrical shape is superior, but if you could indulge my insanity for a moment...suppose I were to attempt such an absurd construction. How do I go about calculating how thick it would it need to be? And what property of the sheet is it testing? Is it the tensile strength...
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    Building a flat rectangular vacuum chamber

    I'm uneducated in Physics so I'm not sure where to begin with this. I want to build a vacuum chamber that is rectangular and fairly flat. It will measure 48"X96"X8" I plan on constructing it from clear polycarbonate sheet on one face (would clear acrylic be a better choice?) and aluminum sheet...
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