## 3 Results
### Mechanical Properties of the SLA 3D-Printed and Tensile-Tested ABS-like Resin Specimens  
Table 9 presents the tensile testing data for all ABS-like resin specimens fabricated using SLA 3D printing. Figures 9 and 10 depict the graphical representations of tensile strength and strain for each of the ABS-like resin specimens subjected to tensile testing. Figure 9 represents a graphical depiction of the tensile test results for SLA 3D-printed ABS-like resin tensile-tested specimens with 30% fill density (Case 3), while Figure 10 displays the tensile test results for ABS-like resin tensile-tested specimens with 100% fill density (Case 4). Upon thorough examination of the graphs displayed in Figures 9 and 10, a clear pattern emerges. It is clearly evident that the ABS-like resin specimens, produced through SLA 3D printing with a 100% infill density, demonstrate a notable enhancement in both tensile strength and nominal strain at break values. This observed enhancement underscores the efficacy of SLA 3D printing when producing high-strength ABS-like resin components, thus demonstrating its potential for applications demanding superior mechanical properties. The average value of the tensile strength exhibited a notable 30.49% increase in SLA 3D-printed ABS-like resin specimens with a full 100% infill density (Figure 11a). This substantial rise in tensile strength underscores the remarkable capacity of SLA 3D printing to enhance the mechanical performance of ABS-like resin components, making them not only stronger but also more robust and reliable in a wide range of engineering and manufacturing applications. This improved tensile strength can open up new possibilities for designing and producing parts that must withstand substantial loads and stresses with greater confidence. Figure 8: Comparison between tensile strength and Young’s modulus of FDM 3D-printed ABS specimens post-tensile testing and manufacturer-specified filament values: (**a**) average tensile strength, (**b**) average Young’s modulus. Figure 9: The tensile strength–strain curves for ABS-like resin specimens produced using SLA 3D printing with a 30% infill density (referred to as Case 3). \begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Case**} & \multirow{2}{*}{\begin{tabular}{c} **Specimen** \\ **Code** \\ \end{tabular} } & \begin{tabular}{c} **Tensile** \\ **Strength** \\ \(\sigma\) \\ **[MPa]** \\ \end{tabular} & \begin{tabular}{c} **Strain** \\ **\(\varepsilon\)** \\ **[\%]** \\ \end{tabular} & \begin{tabular}{c} **Nominal** \\ **Strain** \\ **at Break** \\ **[\%]** \\ \end{tabular} & \begin{tabular}{c} **Young’s** \\ **Modulus** \\ **\(E\)** \\ **[MPa]** \\ \end{tabular} \\ \hline \multirow{4}{*}{Case 3} & 1S\_30 & 33.312 & 3.01 & 3.07 & 1698.081 \\  & 2S\_30 & 25.658 & 2.36 & 2.36 & 1340.203 \\  & 3S\_30 & 35.591 & 3.27 & 3.31 & 1787.256 \\  & 4S\_30 & 33.018 & 2.59 & 2.61 & 1783.058 \\  & 5S\_30 & 30.008 & 4.28 & 4.33 & 1434.025 \\ \cline{2-6}  & \begin{tabular}{c} Average (St. \\ Deev.) \\ \end{tabular} & 31.517 (3.830) & 3.10 (0.75) & 3.14 (0.76) & \begin{tabular}{c} 1608.525 \\ (207.890) \\ \end{tabular} \\ \hline \multirow{4}{*}{Case 4} & 1S\_100 & 45.621 & 4.53 & 5.66 & 2050.024 \\  & 2S\_100 & 45.468 & 4.56 & 5.81 & 2043.581 \\  & 3S\_100 & 42.915 & 3.91 & 6.25 & 2202.640 \\  & 4S\_100 & 44.694 & 3.34 & 3.33 & 2073.162 \\  & 5S\_100 & 48.010 & 4.42 & 4.91 & 2059.801 \\ \cline{2-6}  & \
\begin{tabular}{c} Average (St. \\ Dev.) \\ \end{tabular} & 45.342 (1.839) & 4.15 (0.52) & 5.19 (1.15) &
\begin{tabular}{c} 2085.842 \\ (66.237) \\ \end{tabular} \\ \hline \hline \end{tabular}
\end{table} 
Table 9: SLA 3D-printed ABS-like resin tensile-tested specimens: test results. Figure 11: The mechanical parameters of SLA 3D-printed ABS-like resin tensile-tested specimens with 30% (Case 3) and 100% (Case 4) infill density: (**a**) average tensile strength, (**b**) average strain, (**c**) average nominal strain at break, (**d**) average Young’s modulus.