Regolith Lunar Sampler Sorter (RLSS)

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The initial Fusion 360 model may be unconventional, but it features a rotary tool for obtaining and sorting lunar regolith. Benefits include continuous sorting during sampling and a filled sample container simultaneously. However, an outer body is needed, increasing bulk slightly. The tool attaches to a robotic manipulator with at least 2 degrees of freedom (DoF) and has minimal moving parts for durability in abrasive environments. It's based on industrial bowl feeder concepts. In operation, the rotary tool drills using a stepper motor-driven bit lowered by the rover arm. Sorting occurs as regolith moves into a separation chamber, with small fragments going to a dust pan and 10mm rocks entering a feed chute. These rocks continuously move into the sample container if the tool is rotated. Leftover loose regolith is deposited by rotating the entire tool about the x-axis. Large rocks aren't picked up by the auger. The assembly can be vibrated by the stepper motor during operation for better material movement, and sorted materials can be viewed through a top slot in the feed chute before deposition.