ABSTRACT
This study compares 3D printing systems based on fused deposition modeling (FDM) and stereolithography (SLA). It looks at their operational principles, material compatibility, printing speed, resolution, surface polish, post-processing needs, and applications. FDM extrudes thermoplastic filament layer by layer, whereas SLA uses photopolymerization to cure liquid resin. Material factors include mechanical qualities, cost, and availability. Comparative tests highlight the trade-offs between FDM extrusion speed and SLA precision. Surface finish comparisons show differences in layer visibility and smoothness. Post-processing consequences, such as curing and support removal, are examined with real-world applications from industries such as automotive, aerospace, healthcare, and consumer products. The report finishes with insights into future research approaches aimed at improving both FDM and SLA technology.
