REGI U.S., Inc. and its wholly owned subsidiary, RadMax Technologies, Inc. (RadMax) announced the collaboration with the Northern Illinois University College of Engineering and Engineering Technology (NIU-CEET) for the 3D metal printing of a fully functional RadMax expander. During the collaboration, NIU will produce 3D metal printed components to be used in the construction of a fully functional RadMax refrigerant gas expander prototype. This device will then be compared to those manufactured via traditional methods in the areas of production speed, cost, weight, parts count, strength, performance and overall efficiency. The objective is to understand the capabilities and potential role of 3D printing in RadMax’s long-term manufacturing strategy. NIU worked with the preliminary expander design and has already resulted in parts consolidation to facilitate printing, and understanding digital information transferred for integration. The initial collaboration is expected to run through 2019 and result in the production of a fully functional gas expander as well as the redesign of various components to reduce costs and increase performance.