When CAD systems are linked to manufacturing equipment which is also controlled by computer, they form an integrated CAD/CAM (Computer-Aided Manufacture) system. CAM offers significant advantages over more traditional approaches by controlling manufacturing equipment with computers instead of human operators. CAM equipment is usually associated with the elimination of operator error and the reduction of labour costs. However, the consistent accuracy and predicted optimum use of the equipment lead to even more significant advantages. For example, cutting blades and tools will wear more slowly and break less frequently, reducing manufacturing costs still further. CAM equipment relies on a series of numeric codes, stored in computer files, to control manufacturing operations. This Computer Numeric Control (CNC) is provided by describing machine operations in terms of the special codes and component shape geometry, and building specialized computer files or "part programs". The development of these part programs is a skilled task, now largely superseded by specialised computer software which forms the link between CAD and CAM systems.
CAD enables you to prepare fast and accurate drawings. It provides flexibility to change drawings with minimal effort. In recent years, many professionals have switched to CAD to enjoy the benefits of this precise and creative tool.
