This diploma thesis is focused on parametric programming and creation of user cycles in CNC machine tools in control system Sinumerik 840 D sl / 828 D. The first part contains a theoretical introduction to programming and creation of graphical support of the cycle. In the second part there are practical examples with descriptions and explanations that can act as a guide for creation of parametrical programs. These samples are experimentally verified at the end of the work.

This diploma thesis is focused on advanced NC programming using macros and user cycles. The first part deals with theory of programming and machining of thin-walled parts. The second part contains practical examples of creating cycles, including their graphical support, for individual thin-wall milling strategies. Everything is explained in detail and work can serve as a guide for programmers or wider professional public.