Currently I'm using fusion 360 which us free for a hobbiest and it's been great. So far it has been able to do anything I want, but now that I've added a 4th axis to my machine, the cam is a bit lacking. Handles 3+1 just fine and a few other things like tool path wrap, but isn't currently able to do a lot of 4 axis simultaneous stuff that I would like. I've seen videos of cheaper machines like the stepcraft doing simultaneous 4 on complex shapes so I assume there must be some cheap cam programs out there that can do it. Any suggestions?