Too many TV watchers here. It's adaptive Intelligence, not artificial. It's NOT in CNC machines but is in your car. It has a very good purpose and works very well. Without the CNC we wouldn't get good moulds from Accurate & NOE. QC occurs on the ASSEMBLY line where real workers chuck the bad parts and get a good one. Until you get fired by the line boss who will get fired if he has too many rejects. If the extractor is anything like the 30/30 one, it's a supplier problem. Bean counters that cheat get caught. Machinists that gripe about the 3D printers need to consider the projects that would NOT occur if not for the printers. If it costs $40K per try for a part vs $1k, you end up filling to fit.