/3/ - 3DCG

Hey /3/, probably really fucking dumb question here.

So I have the 3D-scanned-.stl-model of a piece of wasps-nest.

I want to edit the 3D-model in C4D, so that the space between the 'floor'-planes (for a lack of better wording) is see-through or tunnel-like (see reference-photo of the object).

Whenever I'm trying to model that though, I get weird artifacts and don't know what I'm doing wrong (see close-up screenshot for reference). The tools I'm using in C4D are just the Pull and Wax-tools in negative-mode, where they just take stuff away fromt he model instead of adding it.

English is not my native language, so i don't even know what I'm supposed to Google to get around this problem, and I feel like there has to be an easy AF solution to that that I'm totally missing, there is no way you CAN'T do that in 3D-sculpting on the PC.

Hope someone here is able to help, cheers /3/