Study of 3D printed polymer structures and geometries The impact of raster angle configurations on mechanical properties

Abstract

3D-printing of polymers come in a large variety of methods and materials, each configuration with its own strengths and weaknesses. To compute and estimate mechanical properties of 3D-printed parts, good knowledge to the geometry of the internal structures is important to obtain. This will vary between different printers and slicers. As 3D-printed parts are anisotropic, it is often challenging to estimate their mechanical properties. To achieve a deeper understanding of this matter, an empiric approach of printing and testing specimens with different internal structures, will be one objective of this thesis. The results will be compared to both traditional calculation of mechanical strength in isotropic materials, as well as to results from a state-of-the-art study carried out in this thesis.