Open Access Conference Proceedings

<div>The paper deals with the evaluation of the surface texture of parts produced by material extrusionbased 3D printing technology (FDM/FFF). Samples from PETG material were used for evaluation. The surface texture was evaluated after printing and after the ironing process of the last printed layer. Ironing was carried out using ironing at an angle of 45° with different line spacing parameters. The parameters selected to evaluate the surface texture were the height parameter Ra (arithmetic mean height), Rz (maximum height), Rpt (maximum peak height), and Rvt (maximum pit depth). The selected surface texture parameters lead to the characterization of surface texture changes that occur after the ironing process (reduction of protrusion height, filling of depressions, reduction of surface roughness) and that affect its functional properties (reflectivity, adhesion). This paper presents one possible approach to evaluate stratified surfaces produced by 3D printing and subsequent post-processing, which leads to a significant change in surface texture.</div>

Keywords: 3D printing, surface texture, PETG, ironing

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