Table 4. Surface roughness (outer faces)

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Table 4. Surface roughness (outer faces) Printed Part No. Surface Roughness (µm) Outer Faces Mean ±SD Face No.1 (C1 - C2) Face No.2 (C2 - C3) Face No.3 (C3 - C4) Face No.4 (C4 - C1) Nozzle Diameter = 0.5 mm and Layer Height = 0.3 mm 1 Ra @ 0° 1.7636 0.962 1.269 0.9691 1.24 0.38 Ra @ 45° 33.9348 34.1537 35.7264 35.9451 34.94 1.04 Ra @ 90° 31.6403 31.6269 32.7856 32.5879 32.16 0.61 Nozzle Diameter = 0.5 mm and Layer Height = 0.2 mm 2 2.0719 2.122 1.8157 2.8238 2.21 0.43 29.1316 23.0083 22.005 30.7305 26.22 4.36 24.8075 21.269 20.6275 29.5439 24.06 4.09 Nozzle Diameter = 0.5 mm and Layer Height = 0.1 mm 3 2.9918 9.3055 11.8554 10.3374 8.62 3.90 20.4251 17.006 12.0769 13.7845 15.82 3.69 15.188 17.9636 15.0698 14.0192 15.56 1.69 Nozzle Diameter = 0.3 mm and Layer Height = 0.2 mm 4 1.0071 1.4998 0.813 0.9837 1.08 0.30 24.9486 24.9669 23.4345 22.5546 23.98 1.19 21.692 22.6099 21.7538 21.0817 21.78 0.63 Nozzle Diameter = 0.3 mm and Layer Height = 0.1 mm 5 1.268 0.7825 1.6042 1.5143 1.29 0.37 10.8355 9.8911 9.3991 9.783 9.98 8.2634 10.2928 8.6141 9.3617 9.13 0.90 Nozzle Diameter = 0.2 mm and Layer Height = 0.1 mm 6 1.851 2.5073 1.5842 0.734 1.67 0.73 9.4209 10.1548 14.0196 9.166 10.69 2.26 12.5693 11.0999 8.9528 8.2678 10.22 1.98 Mohammad S. Alsoufi et al. How Surface Roughness Performance of Printed Parts Manufactured by Desktop FDM 3D Printer with PLA+ is Influenced by Measuring Direction. American Journal of Mechanical Engineering, 2017, Vol. 5, No. 5, 211-222. doi:10.12691/ajme-5-5-4 © The Author(s) 2015. Published by Science and Education Publishing.