Advances in Additive Manufacturing, Modeling Systems and 3D Prototyping: Proceedings of the AHFE 2019 International Conference on Additive Manufacturing, Modeling Systems and 3D Prototyping, July 24–28, 2019, Washington D.C., USA - Di Nicolantonio, Massimo; Alexander, Thomas; Rossi, Emilio (Springer International Publishing, 2020)