3D printing is a novel and rapid emerging technology. Among distinct 3D printing techniques, Fusion deposition modeling (FDM) is one of the cost effective 3D printing technique. In addition, in FDM process, polylactic acid (PLA) filaments are generally utilized. However, the quality of FDM fabricated part depends upon many processing parameters. Hence, in the current investigation PLA samples have been fabricated using FDM at distinct parameters. Further, the fabricated samples were coated at different levels (50 µm, 100 µm and 150 µm) with 316L stainless steel using electric arc spray. Finally, the surface roughness of the fabricated samples was measured. The result showed that the, surface roughness is higher (14.9 µm) at raster orientation (30°), top and bottom layer (2), and coating thickness (50 µm). On the other hand the surface roughness was found to be lower at raster orientation (60°), top and bottom layer (4), and coating thickness (150 µm).