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Materials Science in Additive Manufacturing                   MEX optimization printing of rHPDE from milk jugs




            Table 2. (Continued)
            PBT (°C)           PT (°C)                                       Results
                                                 Observation                   Description
                                 240                                           Irremovable after print
                                                                               Image taken after print.











            50                   210                                           Both conditions* were satisfied
                                                                               Image taken after print.












                                 220                                           Both conditions* were satisfied
                                                                               Image taken after print.












                                 230                                           Irremovable after print
                                                                               Image taken after print.












            Note: *The conditions refer to (i) the first layer of the print adhered to the print bed throughout the printing process and (ii) the print bed adhesion
            could be partly removed (by hand) after print.
            Abbreviations: PBT: Print bed temperatures; PT: Print temperatures.


            extruding filaments was 6 mm or less. These observations   4.2. Printing on different print bed materials
            are consistent with existing literature, highlighting the
            importance of optimizing flake size to avoid hindering the   Parts were printed on various print bed materials, as
            feeding process. 10                                recommended in the literature, 10,14  as well as on the bare



            Volume 3 Issue 3 (2024)                         8                              doi: 10.36922/msam.4084
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