Freemelt provides the world’s first open source EB-based metal 3D printer, optimized for materials R&D. Freemelt ONE is a full-access toolbox where our customers do their own materials development for Additive Manufacturing. It has features / benefits such as: - open source software, for complete control of beam paths and hardware - powder feeding system and build tank that enable builds with small powder quantities - high power electron beam gun, for fast processing - high process temperature, beneficial for crack-sensitive alloys - outstanding vacuum quality, beneficial for highly reactive materials - multiple auxiliary ports where R&D instruments for in-situ process monitoring can be attached - small vacuum chamber, ensures short turnaround times Its combination of open source software, high process temperature and high vacuum makes Freemelt ONE the perfect choice for a wide range of materials, e.g. Ni-based superalloys, intermetallics, high-alloyed steels, refractory metals and OFHC copper.