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So, I am still fighting with the porous spheres. I managed to create the holes in every single face of the icosahedral sphere (geodesic dome), however when doing the inset faces (I) and extruding inside, I should see a similar pattern of hexagon holes...instead of that, I observed also irregular pentagons and other weird figures. I understand that in order to complete de perfect sphere, pentagons play an important role (like a soccer ball), but is there any way I could have exactly a similar pattern of holes?

This is the sequence of commands I conducted:

  1. Added geodesic dome enter image description here

2)Inset FAces (I) enter image description here

enter image description here

3)Extrude (E) enter image description here

4)Bevel enter image description here

Any idea? Thanks

Edited: I would like to have something like that. No matter whether using hexagons, pentagons or whatever

enter image description here

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  • $\begingroup$ I know that. I edited the question so that it can be understood correctly $\endgroup$
    – Edu39
    Jul 21 at 14:26
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I should have made this an extension to the original answer.. but here goes.

Activate the shipped add-on Loop Tools

After making the I Inset > Individual, use Loop Tools > Circle on all the selected faces, with a 'Radius' set. It's wise to estimate the desired radius before invoking, in this case; the operator is Python, and can be a bit sluggish.

enter image description here

The result will be slightly irregularly distributed holes, (as you noted, you can't tessellate a sphere with hexagons), but they will all be the same size.

Or.. you can Shift G select out the pentagons, and make those holes slightly smaller..

Or... you could use the same Loop Tools adjustment, on a different topology.

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    $\begingroup$ Great!. You're the best $\endgroup$
    – Edu39
    Jul 21 at 18:09

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