Moch Noval Adi Laksono, Redyarsa Dharma Bintara, Suprayitno
3D printing technology is still developed rapidly. One of important quality parameter to assess the 3D printed part is surface roughness. The surface quality of 3D printed part tends to form in regular shape. However, the surface roughness of objects that prints on vertical position is relative ununiformly. The purpose of this study to optimize the printing parameters for making surface quality of printed object to be uniformly. Variations in printing parameters were thickness, length and layer height. The variation of model is arranged by using orthogonal arrays. All model was created using CAD software, then it was manufactured using a 3D printer device. The main material of the test specimen was Polylactic Acid (PLA). Meanwhile, the roughness of the printed object was tested by surface roughness tester. The optimization process was a last stage to find out the most optimal combination of experimental variations. The results showed that the Analysis of Variance (ANOVA) calculation of the S/N ratio value for the thickness parameter was 19.45%, while the length parameter was 48.57%, and the layer height parameter was 5.85%. In accordance to results, the optimal combination occurred on the parameter thickness of 3.25 mm, length of 140 mm, and layer height of 0.20 mm. © 2024 American Institute of Physics Inc.. All rights reserved.
Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Malang, Jl. Semarang No. 5, Malang, 65145, Indonesia
