Flexibility could also mean that CNC machines are quick to reprogram to create new products. They could easily shift from one product to another. Although there are major advantages of using CNC machines, it is not that perfect. They also have limitations. Major limitation would be the cost. Woodworkers, whether they are hobbyists or professionals, would cost a major factor in updating their manufacturing systems. The design that would be followed by the machine is used by the CAD module. It is the Computer Aided Manufacturing (CAM) which ensures that the movement of the motor or the machine is controlled. Once the machine is already set-up, using it would be easy. It could work for 24 ours straight or even for the entire year. The CNC machine (computer numerical control) uses computer software and CNC controller electronics to drive the mechanical system. Like the good old traditional router, the new CNC router also moves in 3 directions (usually called X, Y, and Z directions.) The longest is the X axis which runs from front to back. Some of the cutting edge innovations include 5-axis heads, moldings units, expanded range of aggregates, and the ability of the pods and rails to be electronically positioned. All these have removed the potential of human error from the equation. Dual zone machine In the nesting environment, the new ability to have a dual zone machine that can handle full sheets while providing a load/unload time of zero had drastically changed the throughput of nested-based machines. Aside from the actual software for CNC training, there is also a simulation software which could be used while training operators. This would help build your confidence and at the same time have some hands-on experience. There are trainings and programming systems developed for the past years that try to copy or simulate CNC software systems. Benefits The most obvious of all the benefits is cost savings. The system delivers efficient services where wastage is decreased or virtually eliminated outright. The ability of the system to detect errors and deficiencies assures quality. Operations are halted right away. This improves efficiency in the optimum use of raw materials.