I tried to “cap holes” and “cap holes Ex” but it doesn’t work, I didn’t know where is the problem. when i do set one geometry it works and i get a closed brep , but when i did set multiple geometries it doesn’t work and that means i can’t count the volume. ^^
Not really the same problem, but if you feed the curves from your Region Difference component through a Boundary Surfaces component before you extrude them you get closed breps.
