## 2 Materials and Methods
### Experimental Results and Taguchi Design
All of the control parameters have a negligible impact on the particular response factor, according to the MEP for the Part Weight (g) (Figure 7), except ID (%), with the increase of it leading to an increase in part weight. The LT and PS control factors have a significant impact on the MEP for the Printing Time (PT), with their rise having the desired effect of causing a decrease in PT. The most important criteria for the PT are LT and PS, which are classified as no. 1 and no. 2, respectively. For the ID, the converse effect occurs: when the ID rises, the PT rises as well. When the ORA factor is between 0\({}^{\circ}\) and 90\({}^{\circ}\)degrees, reduced PT is given; when the ORA factor is between 45\({}^{\circ}\) and 90\({}^{\circ}\)degrees, higher PT is reported. NT, RDA, and BT have no considerable impact on PT. RDA, BT, and PS had no appreciable impact on the Compressive Strength (Figure 8) as a response parameter. The compressive strength is mostly affected by the ID, which is  
Figure 8: MEP vs. the work’s control parameters for compressive strength and energy. Figure 7: MEP for printing time and part weight versus control settings. listed as the top characteristic; as the ID increases, the compressive strength also increases. Compressive strength diminishes as ORA (ranked no2) increases. Furthermore, the highest LT value of 0.3 mm leads to reduced compressive strength values, while lower LT values of 0.1 mm and 0.2 mm produce higher compressive strength values, as shown in Figure 8. The higher compressive strength is achieved with the 0.2 mm LT, which is the median control parameter value still, the difference in compressive strength with the lowest LT value of 0.1 mm is marginal. Also, an increase in compressive strength is caused by an increase in NT. Higher levels of LT cause a decrease in EPC, making it the dominant parameter in terms of the EPC response factor (ranked no1). Since PS is the second-most important control factor for the EPC, higher PS levels also result in a fall in the EPC. Regarding ORA (ranked as no3), EPC was lower at 0- and 90-degree ORA, while the maximum EPC was recorded at 45 degrees ORA. The EPC is increased by higher BT (ranked fourth) and ID (ranked fifth) values. The EPC is not severely impacted by NT or RDA. The interaction plots in Figure 9 were created to show the link between the control factors in a graph. Please refer to the work's Supplementary information for extra interaction graphs for the rest of the response factors under consideration (Figure S5). For the EPC:  
* The ORA control parameter exhibits synergistic relationships with the LT and PS and antagonistic relationships with the other control parameters. * The RDA control parameter exhibits a synergistic relationship with the PS and antagonistic relationships with the other control parameters. * The LT control parameter exhibits a synergistic relationship with the PS, NT, and BT and antagonistic relationships with the other control parameters. * The ID control parameter exhibits a synergistic relationship with the PS, NT, and BT and antagonistic relationships with the other control parameters. * The PS control parameter exhibits a synergistic relationship with the ID, LT, and RDA and antagonistic relationships with the other control parameters. * The NT control parameter exhibits a synergistic relationship with the LT and ID and antagonistic relationships with the other control parameters. * The BT control parameter exhibits a synergistic relationship with the ID and LT and antagonistic relationships with the other control parameters. * For compressive strength:
* The ORA control parameter exhibits synergistic relationships with the NT and antagonistic relationships with the other control parameters. * The RDA control parameter exhibits a synergistic relationship with the NT and antagonistic relationships with the other control parameters. * The LT control parameter exhibits antagonistic relationships with all the control parameters.