Specialised Computer-aided design (CAD) modeling software can be used to design or create parts for a wide variety of applications. 3D models of the finished product could then be viewed and virtually assembled with other parts if necessary, to see how they fit together.
Existing parts can also be recreated and modified as needed to include any desirable design changes.
Models of the parts can then be sent to the Computer-aided Manufacturing (CAM) software to generate optimised toolpaths for fast machining times. The CAM software is also capable of intelligently selecting the required tools to complete the machining of the job.