FDM (Fused Deposition Modeling) and SLA (Stereolithography) are two of the most prevalent 3D printing methods. FDM involves melting plastic filaments and depositing them layer by layer to shape an object. In contrast, SLA employs a laser to harden liquid resin also in a layer-wise manner. Both technologies have their unique advantages and disadvantages, affecting factors like print quality, material versatility, and processing speed.