3D printed magnets for neutron spin manipulation Richard Wagner, Laurids Brandl, Wenzel Kersten, Stephan Sponar, Yuji Hasegawa, Christian Huber, Florian Bruckner and Dieter Suess EPJ Web Conf., 219 (2019) 10008 Published online: 12 December 2019 DOI: 10.1051/epjconf/201921910008