The Effect of Acetone Vapor Smoothing Duration and Printing Orientation on The Mechanical Properties and Surface Characteristics of ABS Specimens from Fused Deposition Modeling 3D Printing. (2026). ENERGY: JURNAL ILMIAH ILMU-ILMU TEKNIK, 16(2), 400-417. https://doi.org/10.51747/energy.v16i2.p400-417