Analysis of the Effect of the Surface Inclination Angle on the Roughness of Polymeric Parts Obtained with Fused Filament Fabrication Technology.

From the results of the previous analysis, we found the following: With ABS ( Table S1 ), all deposition patterns led to the formation of the yellow layer according to the inclined plane angle, this effect being clearly significant with the combination of the smallest nozzle diameter (d1 = 0.25 mm) and the largest layer height (h3 = 0.15 mm), since an inclination of up to 10° was observed in the measurement plane; Nylon ( Table S2 ) presented this intermediate layer only at the 0° and 5° inclinations in different joints of diameter nozzle/layer height, using the same combinations as those applied for PLA and ABS; PLA ( Table S3 ) presented exactly the same parameters as did ABS.

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