A comparative analysis of feed control systems in FDM 3D printers is carried out, their advantages and disadvantages are noted. The design is proposed and the principle of operation of a new material delivery control system with improved characteristics is described.
Existing drive belt tensioning systems in FDM 3D printers are considered. A comparative analysis of tensioning systems has been carried out, which has shown that the existing systems are characterized by the phenomenon of asymmetry of the action of forces during the stretching of the drive belt. A new design has been proposed and developed, which is a unit mounted in a 3D printer that equalizes the forces of tension of the drive belt and damping of vibrations in an FDM 3D printer.
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