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The application of advances in 3D printer technology makes it easy for designers and concept development teams to produce components and concept models using 3D printers. 3D Printing is a tool that can process the creation of a series of objects by placing thin layers that are formed sequentially according to the desired shape. FDM is a 3D printing technique for printing products using filament as a material. This research aims to compare the results of the atmospheric method and the vacuum method to find information regarding the optimum parameters for producing FDM printed objects with the highest impact test using filament, namely (PETG) and tensile test (PLA). and can keep costs and research low. This method is based on the principle of impact strength and tensile strength of PETG and PLA filaments by analyzing the optimum value of impact strength using PETG filaments and PLA tensile strength. In this discussion the researcher used the Taguchi Method experimental design with an L18 Orthogonal Array design with three factors and three levels for PETG while for PLA 4 factors and 3 levels. Signal to Noise Ratio SNR analysis to determine the optimum parameters for PETG filament impact strength and PLA tensile strength. The process parameters that will be used in this research are Nozzle Temperature (°C), Print Speed (mm/s), bed temperature, and Pattern Filler/infill. In this vacuum method research, results were obtained that showed the use of optimal parameters for the PETG impact test, namely nozzle temperature (230°C), print speed (30 mm/s), bed temperature (80°), while the PLA filament vacuum method used optimal parameters. namely nozzle temperature (190°C), orientation (45°), print speed (65mm/s) and Infill Pattern (cubic).
Keywords: 3D Printing, Fused Deposition Modelling (FDM),Vacuum, PLA,PETG, impact test, tensile test, Taguchi method.
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