The task consisted of a theoretical and a practical part. In the theoretical part of the final work is described as a CNC machine, how it works, and how it is shared. The following is a detailed description of the cuts down milling. For the end of the theoretical part of the Division was made of machining centers according to the number of axes. This part is very important because it will be the raw piece to make aerial petoosnom manufacturing center. With the end of the theoretical part of the we can start on the practical part which consists of drawing in Mastercam program. Mastercam offers ease of use, how later the rising level of knowledge, also can be customized and Mastercam, which will further raise productivity. For processing is taken a bit more complex piece for easy of explaining function-and Mastercam. The first is drawn 3D processed material in the program using Mastercam radioničkog drawings. After modeling follows the selection of operations, you select Tools and modes of processing. In the end it picks the appropriate postprocessor that selects according to the machine on which we will farm again raw piece.