This paper will analyze the comparison of classical processing methods by particle separation, with processing by computerized particle separation, using CNC machines and the 3D program SolidCAM for writing programs. The emphasis will be on CNC milling, but all the specifics of processing by separating particles will be mentioned and analyzed throughout the work. Also, the author will explain the issue through an introduction to processing technologies and its history and development. Tools, programs, machines will be presented, in order to go into the analysis and conclusion of the research in more detail. For the analysis itself, a computer, a CNC machine Okuma Genos, and samples produced by the company SCAM Marine d.o.o. were used. In addition to the display of technology and processing, the design of certain products and the choice of technology will also be shown, with explanations. Finally, in the conclusion, the results of the research and the procedures according to which the technological process is selected in accordance with a certain processing technology are presented.