Verification of 3D printers in X-, Y- and Z-directions

摘要

Various approaches have been proposed to verify the performance of 3D printers including the so-called hole plate. However, there is an obvious drawback in printing a 2D artefact on a machine that is being used to print 3D parts. Conclusions regarding the performance in the third axis are not available. This paper sets the foundation for understanding the thermal behavior of the fused deposition modelling process so that in the future, an approach for 3D verification based on printing towers on a base plate can be developed. This foundation is set by means of an analysis of possible errors introduced by thermally induced residual stresses from material shrinkage during deposition.