Where have teams in the past got their custom axles made?

We always have machined our own. We don't have all that fancy of a lathe either. Just a really old Monarch (WWII vintage). We then weld on a hub flange to make hub. Since we adopted this method we haven't had any failures (knock, knock).
-Lucas Weidner
Colorado State University

We also have made our own axles in the past. We splined them with an indexing head and an old WWII mill as well Splining requires some insanely labor intensive mill time, but it costs nothing.

-Charlie Ping
Auburn University FSAE 1999-present