Don't forget CNC in rapid prototyping

The two major approaches to computer-aided design are additive rapid prototyping (ARP) and computer numerical control (CNC). ARP is the method of choice among many engineering firms because of its speed and accuracy. However, ARP is limited by the number of materials from which to choose and the size of the models. An effective alternative is CNC, which is just as accurate and rapid under the right conditions. Some of the respective applications of ARP and CNC are presented.
ARP systems produce major benefits, but they aren't always the best solution. Product design people today generally know about the 'magic' of new rapid prototyping technologies. These techniques collectively have [...]