Creating a face on 2 circles of edge while letting the inside of the small circle without face Hello,
I managed to clean all the vertices of the primitives that I join together, removing the faces that where overlapping and keeping a simple shape. 
Now is my problem : I need to create the front and back faces. But when I select all the vertices, and make 'F' to create a face, the 2 holes inside the shape are covered. 
How do I need to proceed to make the face without covering those holes, letting them empty? (the holes are the small circle in the middle and the moon croissant under it)
The only method I found is to remove the central cylinder, make the faces, create a cylinder and add a boulean to remove the center in the end. It is dirty :/