The influence of layer height and nozzle diameter on the strength of elements manufactured using FDM technology

In recent years, there has been a dynamic development of technology FDM (Fused Deposition Modeling). This has opened up new possibilities for manufacturing components, both prototypes and final devices in low-volume production. Due to this, in addition to visual values, the mechanical properties of the manufactured elements are also becoming crucial. The aim of this work is to analyze the influence of selected FDM process parameters such as nozzle diameter and layer height on mechanical properties. The obtained results will allow for a more informed selection of parameters and shortening of the production time. The first part describes the influence of individual parameters on the production time and strength based on a review of publications. The second part presents the method and results of three-point bending tests for specimens differing in layer height and nozzle diameter used to produce them using FDM technology. The tests performed allowed us to determine the effect of these parameters on the obtained mechanical properties.