FDM 3D Printer Parametric Process Optimization of Creality Ender 3 3D Printer for Dimensional Accuracy Printing Quality Using PLA+ (Polylactid Acid) Material

3D printing technology is one of the additive manufacturing processes that is starting to be widely used in Indonesia today. This technology’s ability to create various forms of design into three-dimensional visuals makes it one of the most popular technologies in the world of engineering. The quality produced by 3D printing depends on the type of filament and the careful selection of process variables. In recent years, a lot of research has been carried out in an effort to explore various ways to improve the quality of printouts from 3D printer machines with various variations of parameter optimization and experimental design concepts. This research aims to improve the quality of extrusion-type 3D printer prints with FDM (fused deposition modeling) technology for the Creality Ender 3 using PLA+ filaments, which have slightly better strength than standard PLA filaments, which are widely used in general. By designing optimum process parameter settings using the Taguchi method with three process parameter factors, which include print temperature, layer thickness, and print speed, which are also adjusted to the characteristics of PLA+ filaments, optimum settings were obtained with printing temperature of 230 °C, layer thickness of 0.20 mm, and print speed of 100 mm/s.