Actual Problems in Machine Building. Vol. 10. N 1-2. 2023 Technological Equipment, Machining Attachments and Instruments ____________________________________________________________________ 62 ERROR ANALYSIS OF DELTA KINEMATICS 3D PRINTER Zakharov O.V., D.Sc. (Engineering), Professor, e-mail: zov20@mail.ru Suleimanova F.D., Laboratory assistant, e-mail: fainaslm@icloud.com Yuri Gagarin State Technical University of Saratov, 77 Politechnicheskaya street, Saratov, 410054, Russian Federation Abstract Equipment upgrading for additive manufacturing is on the way to increase accuracy and productivity. Delta kinematic 3D printers have advantages over traditional printers. The main advantage lies in the high speed of the extruder due to the parallel movement of the three motors. However, the delta kinematic has been used only in inexpensive models of 3D printers. Insufficient positioning accuracy of the extruder can be considered the main reason. The final positioning error includes contributions from the errors of the three parallel drives. In this paper, the influence of systematic errors of movements and lengths of levers on the positioning accuracy of the extruder is investigated. The data obtained allow developing a method for error compensation in delta kinematic 3D printer. Keywords Additive manufacturing, 3D printer, delta kinematics, positioning errors
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