The title of the thesis is "Research and development of 3D printing equipment for the production of orthopedic rehabilitation equipment". The main research objects of the doctoral thesis are 3D printing printer software and applications, CAD model preparation and slicing programs, and 3D printer control boards. The main research methods include the analysis and compilation of current literature, adjusting the parameters of CAD model cutting programs, modifying the geometry of CAD models, adjusting the material flow of the 3D printer, creating a simulation of the operation of the 3D printer, making 3-axis and 5-axis FDM 3D printer prototypes, performing experimental verification in laboratories, manufacturing of test samples and comparison of mechanical parameters. The main research results include technological improvements and recommendations for the improvement and practical application of 3D printing technologies for the manufacture of orthopedic rehabilitation devices and their application in other areas. As a result of using the proposed technology, it is possible to make parts more resistant to bending and breaking from PLA and PET-G materials, as well as to reduce electricity consumption by 2-3% by changing the equipment and settings of the 3D printer control board. In the first part of the thesis, the literature on the current 3D printing technology and its software provisioning possibilities has been researched and compiled, existing and unsolved 3D printing problems and approaches that can be prevented have been studied, a study of CAD model slicing methods has been carried out and recommendations and ideas have been offered on how to solve problems using cylindrical and non-planar cutting methods of CAD models, as well as a proposed method of processing and adjusting CAD models for cylindrical printing. In the second part of the thesis, the selection of components of the 3D printer prototype has been made, based on the balance of cylindrical and non-planar printing, a solution has been developed that combines traditional, 3-axis and 5-axis 3D printing methods in one device that uses cylindrical and non-planar printing technologies. After the development of the prototypes, tests of the mechanical properties of the printed samples have been carried out, research and description of the parameters and operating principle of the developed prototypes, as well as recommendations and proposals for further research have been given. The thesis is written in Latvian. The thesis includes 6 chapters, 88 images, and 13 tables. The total number of pages is 105, the bibliography has 84 references.