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  • 1
    Publication Date: 2019-07-13
    Description: NASA's strategic goal is to put humans on Mars in the 2030s. The NASA Human Spaceflight Architecture Team (HAT) and NASA Mars Design Reference Architecture (DRA) 5.0 has determined that in-situ resource utilization (ISRU) is an essential technology to accomplish this mission. Additive construction technology using in-situ materials from planetary surfaces will reduce launch mass, allow structures to be three dimensionally (3D) printed on demand, and will allow building designs to be transmitted digitally from Earth and printed in space. This will ultimately lead to elimination of reliance on structural materials launched from Earth (zero launch mass of construction consumables). The zero launch mass (ZLM) 3D print head project addressed this need by developing a system that 3D prints using a mixture of in-situ regolith and polymer as feedstock, determining the optimum mixture ratio and regolith particle size distribution, developing software to convert g-code into motion instructions for a FANUC robotic arm, printing test samples, performing materials testing, and printing a reduced scale habitable structure concept. This paper will focus on the ZLM 3D Print Head design, materials selection, software development, and lessons learned from operating the system in the NASA KSC Swamp Works Granular Mechanics & Regolith Operations (GMRO) Laboratory.
    Keywords: Mechanical Engineering
    Type: KSC-E-DAA-TN54777 , ASCE Earth and Space Conference; Apr 09, 2018 - Apr 12, 2018; Cleveland, OH; United States
    Format: application/pdf
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  • 2
    Publication Date: 2019-07-13
    Description: The NASA In-situ Resource Utilization (ISRU) project requires a regolith feed system that can transfer lunar regolith several meters vertically into a chemical reactor for oxygen production on the moon.
    Keywords: Mechanical Engineering
    Type: KSC-2010-091 , 1st Joint Meeting of the Space Resources Roundtable; Jun 08, 2010 - Jun 10, 2010; Golden, CO; United States|Planetary and Terrestrial Mining Sciences Symposium; Jun 08, 2010 - Jun 10, 2010; Golden, CO; United States
    Format: application/pdf
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