How can I erase part of a mesh using another mesh? I need a way to erase accurately a part of a mesh, using another mesh.



I need the big mesh to have a gap where the smaller mesh is.
I don't need the smaller mesh, so it doesn't matter if it gets destroyed in the process/
This can be accomplished with a boolean modifier.

Add it on the large mesh and set the type to difference, then set the smaller mesh as it's target.



once you apply the modifier, you will have a hole in the large mesh, you may delete the small mesh