Is there an easy way to add a hole into an object?

Question

If I wanted to add a hole into an object e.g. Create a tube

Is there an easy way to do that?

I haven't seen anything regarding negative space so far in Blender, and it would be really helpful for my project

Thanks in advance!

Answer 1

Examples

• In edit mode you can switch to face select mode (control tab). Select faces and delete. You may need to created additional faces to delete.
• Extrude or inset and remove faces
• Use any mesh primitive with multiple faces and delete a face.
• Add more faces (loop cut and slide) and delete a face to create hole.
• Use a Boolean modifier with operation Delete to create additional geometry suitable to the final step to delete faces.
  In the image below we see from left to right
  • a plane
  • a plane with sphere placed to intersect the plane
  • goal mesh achieved with hole cut from Boolean modifier with [apply] clicked and user editing to delete extra vertices
  • plane selected with Boolean modifier present
  • plane with extra geometry created by Boolean modifier with [apply] clicked. Extra geometry will be deleted. N-gons may be present.

• If rectangular outside with circular hole is desired use a torus or sphere or cylinder and use a shrink wrap to a rectangular outside. Below is an example of a torus with 3 vertex cross section.

• The geometry created above may be more suited to some situations rather than a triangulated n-gon.