Improving surface finish quality of FDM prototypes

Rapid prototyping technologies decrease production time and costs in engineering industry but also in other industries. One of most widely used technology FDM suffers under low surface finish quality. This paper is aimed on research of surface finishing technologies applicable to improve the quality of FDM prototypes surface finish. Pretreated samples were blasted with sodium bicarbonate and glass beads. The values of Ra and Rz were measured on the samples and compared the impact of selected blasting medium and blasting conditions on surface finish quality of FDM prototypes.