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EVALUATING POLYMETHYL
                    METHACRYLATE (PMMA) AND

                    BLOCKBOARD AS ENCLOSURE
                       MATERIALS FOR AMBIENT
                     STABILITY IN FDM PRINTING


                   Mohd Haidiezul Jamal Ab Hadi (Universiti Malaysia Perlis)*,
                Shahrizal Dolah (Universiti Putra Malaysia), Noorhafiza Muhammad
                (Universiti Malaysia Perlis), Mohamad Syafiq Abd. Khadir (Universiti
                  Malaysia Perlis), Wan Mohd Faizal Wan Abd Rahim (Universiti
                 Malaysia Perlis), Mohd Hazwan Mohd Hanid (Universiti Malaysia
                    Perlis), Muhammad Nur Misbah (Universiti Malaysia Perlis)


               ABSTRACT

               Maintaining a stable ambient  temperature  is  critical for high-
               quality Fused Deposition Modelling (FDM) 3D printing. Open-
               frame printers are susceptible to temperature fluctuations that can
               cause warping, poor layer adhesion, and print failures. Enclosures
               help control the print environment, but the performance of
               different  enclosure materials  is not fully understood. While
               PMMA, known scientifically as Polymethyl Methacrylate
               (PMMA), is favoured for its  lightweight and modularity, the
               thermal performance when compared to wood-based enclosures
               such as blockboard (a laminated wood core panel) remains a
               question. This study compares the effectiveness of PMMA and
               blockboard enclosures in maintaining ambient temperature during
               the FDM 3D printing process. A Creality Ender 3 Pro printer was
               used to fabricate a complex geometry model designed in Autodesk
               3Ds Max. Two custom enclosures were prepared,  one using 3 mm
               PMMA sheets and the other using blockboard, built with similar
               dimensions. The nozzle and bed temperatures were set at 270 °C
               and 110 °C respectively, with a 0.20 mm layer height. Ambient
               temperature inside each enclosure was recorded every 10 minutes
               throughout the printing process. Results  show that  the PMMA



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