I am trying to model this part. I believe what I want to do is sketch the shape shown by the section cut out and then do a revolve. When I try to model that 40 degree angle it ends up not looking right at all, maybe I am missing some relations to keep it in place? I am starting to figure this all out, but I still feel I need to work on design intent. Can someone give me some pointers as to where I need to start to get this right? Im guessing it wont take that long once I get it going.