Our machine shop just asked me about this...
User is programming a part, made from hex stock, to be turned on a lathe. He's using a spun outline, so the IPW that is output is round, and not hex, which doesn't work for the next mill operations.
Any tips on how others do this?
You need to model in process workpieces...
This is a Tip video i did some tome ago, it will explain the process.