CNC refers to cutting material with a computer numerical control machine. The CNC machining process interprets your 3D CAD model and translates data to CNC machines. The main benefit of the process is that CNC will produce parts that can replace the additive manufactured prototypes with true production grade materials. This method allows you to build your parts in the featured material that you intend for use in production. CNC machining is the best choice for rapid prototyping of high-quality metal and plastic parts requiring the greatest degree of dimensional accuracy, critical surface finishes, material-specific properties.