3.2 Testing of Printed Specimens
The samples were printed as per ASTM-D 638 through the FDM printer. The tensile strength was carried out using the Universal Testing Machine FIE UNITEK-9450. The samples were tested until they broke at a speed of 5 mm/min. After testing, the fractured surface was measured with a high-capacity microscope (ICX41M, Sunny Optical Technology Co.,Ltd., through Nu-Tek Solutions) at magnification levels ranging from 1000 to 3500 magnification levels. Tests were carried out in accordance with the Design of Experiments , and the results are shown in table 6.
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