[Gmsh] Combination of volumes

[ISABELA PAREDES CISNEROS]

Hi everybody!

I would like to know if it is possible to combine volumes. I have two
cylinders created using the Extrude command. This cylinders intersect
anyway, not sharing a surface but overlapping. Also this cylinder then will
be holes in a box. So I am trying to combine a couple of cylinders (in the
future there will be many many cylinders) and then subtract them from the
box. I know the file here doesn't work since the volumes are overlapping.

Any ideas?

Thanks!
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