Fajri Sri Ardion, Heru Sukanto, Joko Triyono


Rapid prototyping or commonly known as additive manufacturing uses metal and non-metal semi-liquid materials which are compacted layer by layer. Fused deposition modeling (FDM) is one of the methods in the additive manufacturing process that uses thermoplastic filaments (PLA and ABS). Poly Lactic Acid (PLA) or poly lactic acid is an organic plastic or bioplastic made from renewable biomass sources such as corn starch, pea starch and vegetable oils. Important factors affecting the quality of 3D Printing results are nozzle diameter, nozzle temperature, bed temperature, infill patern, infill percentage, print speed, layer thickness and infill overlap. Infill overlap is the percentage of overlapping processes of the filament during the printing process. This research was conducted to determine the effect of infill overlapon the physical and mechanical properties of 3d printing products. The infill overlapvariations used are 0%, 25%, 50%, and 75% of the nozzle diameter. 50% variation shows better quality when compared to other variations for density test, tensile test, and bending test.

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