CORRELATION OF PRINTING SPEED AND LAYER HEIGHT WITH THE GEOMETRICAL ACCURACY OF FDM-FABRICATED PETG RESOLUTION RIBS

Ioannis T. CHRISTODOULOU, Vasiliki E. ALEXOPOULOU, Angelos P. MARKOPOULOS

Abstract


PETG (Poly Ethylene Terephthalate Glycol) is used in Fused Deposition Modeling (FDM), as it gives excellent layer bonding. Many different process parameters affect the final object, so they should get correlated with the mechanical and geometrical properties of the printed PETG. In the bibliography, most studies focus on the mechanical properties of FDM products, whereas fewer are the studies of geometrical accuracy. In this paper, 6-ribs PETG features were FDM-fabricated, by following the ISO ASTM 52902-2021 standard. The ribs had a wall thickness of 6 mm, 5 mm, 4 mm, 3 mm, 2 mm, and 1 mm and were created with printing speeds of 20 mm/s, 50 mm/s, and 80 mm/s and layer heights of 0.2 mm, 0.25 mm, and 0.3mm. Then, they were measured with a handheld caliper, statistically analyzed, and commented.


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References


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