Gas cell

With preps started – in the next stage we started planing for an actual gas bag. Using our brand new whiteboard we’ve drafted this.

Well it might not look that super clear, so I’ve prepared a sketch in the OpenSCAD.

If you are interested, here comes the code.

module GasBagMiddle() {
  D() {
    union() {
      %D() {
        cylinder(25, 25, 25);
        Tz(0.01)
        cylinder(25 -.02, 25-.02, 25-.02);
        Tz(-0.01)
        cylinder(25 +.02, 5, 5);
        Tz(-0.01)
        cube(25+0.02);
      }
      D() {
        cylinder(25, 5, 5);
        Tz(0.01)
        cylinder(25 -.02, 5-.02, 5-.02);
      }
      n=8;
      for(w=[0:360/n:359]) {
        Rz(w)T(15, 0, 12.5)
        cube([20,0.1,25], center = true);
      }
    }
    Tz(-0.01)
    cylinder(25+0.02, 5-.01, 5-.01);
    Tz(-0.01)
    cube(25+0.02);
  }
}

You may now wonder what are you looking at, so that is a model of our gas cell – actually the middle one. It will be wrapped around one of our central ducts – that’s why there is that central hole. It also comes with internal partitioning, to support holding a shape and one quarter is missing as it forms an internal opening for airship’s technical background.

So we started drawing and cutting – a lot.

.. and then gluing for several days …

Last picture comes with the adaptor already glued in, but I took couple close ones when gluing it in as well.

Whole that envelope was quite stable so we couldn’t resist and mounted it on our jet cart.

It looked pretty wild already – and it is not over! Stay tuned!

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