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Proceedings of the 2025 International Conference on Engineering, Technology and Applied Science Innovations

Annals of Computer Science and Information Systems, Volume 46

Study on the optimization of FDM parameters for the manufacture of flexural specimens from recycled ASA in the context of the transition to the circular economy

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DOI: http://dx.doi.org/10.15439/2025I24

Citation: Proceedings of the 2025 International Conference on Engineering, Technology and Applied Science Innovations, Gerasimos Pylarinos, Christos P. Antonopoulos, George Syrrokostas, Panteleimon Apostolopoulos, Stratos David (eds). ACSIS, Vol. 46, pages 15–20 ()

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Abstract. This paper investigates how variable 3D printing parameters by fused deposition modeling (FDM) influence the mechanical properties of 3-point bending specimens made from recycled acrylonitrile styrene acrylate (rASA) filament. Using variable thermoplastic extrusion parameters [layer height Lh = (0.10, 0.15, 0.20) mm and fill percentage Ip = (50, 75, 100)\%], 45 3-point bending specimens were additively fabricated from Everfil rASA filament on the QIDI Q1 Pro 3D printer. All fabricated specimens were subjected to 3-point bending tests on the Barrus White 20 kN universal testing machine. The analysis shows that both selected parameters (Lh and Ip) contribute to the changes in the maximum flexural stress (σf) of the rASA filament additive manufacturing specimens. Of the two, the filling percentage shows a significantly stronger effect, exceeding the influence of the layer height by 55.89\%.

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