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Thread: helium filled bubbles machine?

  1. #21
    mixedgas's Avatar
    mixedgas is offline Creaky Old Award Winning Bastard Technologist
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    Really the issue becomes the bubbles floating away too fast. How do you add just enough lifting gas to achieve a bubble that is neutrally buoyant at a given height?
    The bubbles have to be pretty much the same size, or they will float away like crazy.

    Not saying it can't be done, but the physics of new effects under development is always "FUN" at first.

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  2. #22
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    swamidog is offline Jr. Woodchuckington Janitor III, Esq.
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    Quote Originally Posted by mixedgas View Post
    Really the issue becomes the bubbles floating away too fast. How do you add just enough lifting gas to achieve a bubble that is neutrally buoyant at a given height?
    The bubbles have to be pretty much the same size, or they will float away like crazy.

    Not saying it can't be done, but the physics of new effects under development is always "FUN" at first.

    Steve
    i assume you have a tank of He and a tank of compressed air and just bleed a little air into the He line adjusting for elevation/ambient temperature/phase of moon... etc.
    suppose you're thinkin' about a plate o' shrimp. Suddenly someone'll say, like, plate, or shrimp, or plate o' shrimp out of the blue, no explanation. No point in lookin' for one, either. It's all part of a cosmic unconciousness.

  3. #23
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    I guess we could even have real 3d foam objects if we replaced 2d stencils with two piece molds that would move away from each other to let the foam object free.
    But doesn't seem worth it.

  4. #24
    swamidog's Avatar
    swamidog is offline Jr. Woodchuckington Janitor III, Esq.
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    Quote Originally Posted by blue View Post
    I guess we could even have real 3d foam objects if we replaced 2d stencils with two piece molds that would move away from each other to let the foam object free.
    But doesn't seem worth it.
    like this.. only bubbles!

    https://youtu.be/C6RD4N8QNwU
    suppose you're thinkin' about a plate o' shrimp. Suddenly someone'll say, like, plate, or shrimp, or plate o' shrimp out of the blue, no explanation. No point in lookin' for one, either. It's all part of a cosmic unconciousness.

  5. #25
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    Molds could be made with a 3d printer to save cost. The layer resolution is poor with current FDM printers but for bubble objects it shouldnt matter. If you had few $400 Prusai3 3d printers you could print the mold as few 20x20x20cm pieces and then glue them together.
    Still could take about a day to make.
    Wait, what was this thread about?

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