A solid alternative for the Multipipe Component

Grasshopper
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Hey! I have created the 3D Voronoi structure shown by feeding the cells’ deconstructed edges into a Multipipe component. It looks great, but I want the structure to be solid (filled) rather than a surface (hollow) which is what Multipipe outputs. I’ll use the solid structure for further analysis in Ansys software.

What I have tried: I tried a voxelization approach with solid cubes to closely mimic the original structure, but if I wish to get near acceptable smoothens, the program becomes quite heavy and the later analysis becomes almost impossible.

Any ideas would be appreciated!

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2512×502 81.3 KB

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Share your def.

Not sure what you mean by solids though. A closed surface/polysurface/mesh is a solid in Rhino.

You can look into Dendro plug-in for making voxel approximations and smooth them.

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Hey. It’s true that I might be using incorrect terminology here. If you look at the cross section in the figure, you’ll see how the structure contains hollow pipes rather than solid cylinders. I am trying to turn that into ‘solids’ all around.
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I have also attached a simplified version of my definition. It won’t reproduce the same exact shape as in the photo, but close enough for this problem. Thanks!
Voronoi_3D.gh (10.6 KB)

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Hello
you make a solid per cell, and they are all closed as meshes have non naked edges.
You can merge everything and use Union Mesh in Rhino or Dendro. For me Dendro seems still more powerful but will generate a mesh with quite a lot faces. You can then use quad remesh or triremesh (better use rhino decimation tool before)

image
image1078×752 74.7 KB

Voronoi_3D.gh (10.0 KB)

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Hey @laurent_delrieu. I highly appreciate your help and apologies for the late reply.
While your definition helped smoothen my geometry, I am still seeing the hollow pipes (in picture). Do you perhaps have something up your sleeves that could turn them into solid (filled) pipes?
Thanks!

image

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Hello
it is not simple to help here without knowing what you use and with a simple screenshot.
There are many things that can go wrong

  • Mesh self intersection
  • Test if mesh is closed (no naked edges)
  • In a mesh there could be 2 meshes of more so the clipping tool can’t figure if it is an hole because mesh is not well oriented
    Here 2 I made 2 spheres as mesh that are joined
    On the left they have same orientation so the tool think there is 2 solids
    on the right I flip the orientation of inner sphere
    The tool “understand”.
    image
    image1181×696 87.4 KB

In order to treat that you must disjoin mesh, then flip the orientation of all inner mesh then join.

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