Figure 3.18 - Connected faces
The option will not work if you have more than two faces selected. With
Bridge Faces, you get better results by using parallel faces. That is a
way to avoid distorted shapes from the connected geometry.
3.5 Separating and joining models
In the previous section, we learned how to connect elements from a
model with the F key and the Bridge Faces. What if we want to separate
models instead of connecting them?
To separate parts of a model in Blender, use the P key. After pressing
the P key, a small menu appears with options. It is possible to separate
parts by selection, materials, and loose parts.
For instance, after pressing the P key and choosing "Selection," Blender
creates a new object based on any selected vertices, edges, or faces.
(Figure 3.19).