The solution is directed to the cleaning a printing nozzle during printing. By moving a nozzle across multiple lamellae and spacings, continuous wiping is achieved and all plastic residues are directed downwards. The lamellas can be arranged at different heights and/or may have cutouts for better wiping of the nozzle surface.
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Konvicny, Jiri, "Nozzle Wiping solutions", Technical Disclosure Commons, (November 22, 2021)