Experimental Investigations of Printing Parameters of Fused Deposition Modeling-Based 3D Printers for Average Surface Roughness

The FDM technology-based 3D printers have become very popular for making models in the industry. Selection of printing parameters is the key issue in preparing models with good surface finish. An effort has been made to study the effect of printing parameters such as layer thickness, nozzle temperature and printing speed on the surface. Efforts were made to print test coupons using the FDM-based 3D printer, and surface roughness was measured using the stylus probe attached to surface tester to identify the role of printing parameters for surface roughness. ANOVA over L9 array of Taguchi for three variables has been used to study these parameters. Results by Taguchi method were validated by experiments and found reasonably well.