Since you are inside SOLIDWORKS, you can use the Manager Tree to select the edges of your model. Mastercam 2017 is great at "seeing" the profile of your solid.
Use a Lathe Rough toolpath. Keep your "Depth of Cut" conservative based on your material (Steel vs. Aluminum). Mastercam 2017 for SOLIDWORKS Tutorial (Lathe)
Are you working with or do you have Live Tooling (Mill-Turn) ? Since you are inside SOLIDWORKS, you can use
