Knife tool cuts holes on other side of mesh - Other Software - Blender Artists Community
modeling - Cut mesh in half with filled faces? - Blender Stack Exchange
Knife project and knife wont work as expected : r/blenderhelp
Blender Bisect Tool Split Mesh Into Two Parts Blender 2.8 - YouTube
Knife Tool — Blender Manual
Cutting out complex shapes can be time-consuming, and on a curved surface it can be almost impossible to get right. Luckily, there's a tool called knife... | By Blender Secrets | In