CNC technology has led to a revolution in the field of industry that elevated the craftsmanship to a level that could never be reached by handwork, especially when dealing with complicated shapes and tiny precise items. Actually, in order to imagine the huge difference made by this innovation, we may compare two cases as an example. In the first case, there is a professional craftsman in his manual metal workshop. He will be using his hands to saw and move the electric saws and cutters, in the best scenario, to manufacture a small metal tool. In addition to the huge effort and very long time to carry out the task required, there might be a great risk while using these materials which might cause many serious injuries during this dangerous work.

The efforts might not even be fruitful at the end and it may not succeed from the first time. This will increases the final cost and might lead to inaccurate estimation of the quantities and the expected finishing time of the manufacturing process. On the other hand, in the second case, there is almost no risk where precise, pre-programmed, timed, and accurate digital coded software are tested and proven to be successful. In the latter case, the quantity of the items to be manufactured shall be calculated per hour, day, or even for one whole year. Cutting and cutting basic material in three dimensions from more than one axis and simultaneously cuts a lot of time and saves energy, effort and thinking at the same time.