I'm just beginning to learn Blender, and I ran into a problem. I ended up with two separate meshes in one object. I want to attach their faces together, as if I had drawn and extruded one from the other. In this example, I have an octagonal prism that I want to attach to the face of a cube. How can I do this without remaking one of the meshes?
What I have now:
I know that one way to work around it would be to simply move the meshes together so they overlap, but then they aren't actually properly attached, and won't move together/etc.