HRČA, Roman: Cutting parameters of CNC milling and their influence on the inequality of the surface in self-locking joints. [Bachelor Thesis]. Technical University in Zvolen. Faculty of Wood Sciences and Technology; Department of Furniture and Wood Products. Supervisor: Ing. Nadežda Langová PhD. Qualification level: Bachelor (Bc.), Zvolen, 2017. 54 p. This Bachelor thesis is aimed to find out in which process parameters of CNC milling occurs to changes in the technological properties and the impact of these changes on the strength properties in self-locking joints. The thesis is systematically divided into seven parts. The first chapter focuses on the main issue and describes the theoretical concepts that constitute the base of this work and terms such as the furniture constructions. The second chapter differentiate the main aim of the thesis and research solutions. Third chapter discusses self-locking joints and the most common types of self-locking joints. In the fourth part, we focused mainly on CNC woodworking machines, their individual characteristics, the history and development of these machines, and we elucidate the theory of milling the wood. The fifth chapter consists of milling the wood and impact on the roughness and corrugation of the surface. We mentioned also research methods of these parameters. The sixth chapter included methodology and the results of the research, where are defined the main material properties and used machines. This section is focuses also on material specific to the MDF, where are their characteristics and technological parameters briefly described. The result provided by the research serves to evaluate CNC milling on the strength properties in self-locking joints. The final chapter summarized results of the identified parameters from the research.