Roomer has it that CNC technology invention came up during the World War II since the aircraft industry saw the need to start manufacturing complex and precise complex parts. John Parsons is the man accredited with developing the concept of numerical control while engaging in an attempt to manufacture congealed skin for airplanes. The Air Force took over his concept and started several research projects, done at MIT. This dates back to 1949.
John T. Parsons and Frank L. Stulen later worked together using computer methods to find solutions hindrances in machining. They were able to perform accurate interpolation of curves, just like ones seen on helicopter blades.
The two aimed to produce smoother routers and that was their main goal but thanks to their efforts, this dynamic duo was able to create an early version of NC. The resulting system could generate numbers for accurate and composite and accurate outputs. After this Parsons thought of a completely automated tool that exceeded the NC system's performance. He met with the head of Servomechanisms Laboratory at MIT, Gordon S. Brown, in 1949 to discuss the way forward in building a feedback system capable of measuring the capabilities of the numerical controls.