COLDArm, the Cold Operable Lunar Deployable Arm, will significantly improve the utility of robotic arms for lunar landers. The arm will enable manipulation capabilities in very low temperatures, including during the lunar night, when temperatures can drop below -280 degrees Fahrenheit (-173 degrees
robotic arms, COLDArm features 4 degrees of freedom , is approximately 6.5 feet long and can produce approximately 10 pounds of force. A sensor embedded near the arm’s “wrist” will measure and regulate the amount of force the arm exerts during any particular movement to stop the arm when the directed loads have been met and to protect the arm. The arm will be equipped with cameras for 3D mapping, lunar surface imaging, and general operations.
The COLDArm team is evaluating a variety of attachments and small instruments to potentially operate at the end of the arm, including a 3D-printed titanium scoop with features to collect geotechnical properties of the lunar regolith. This includes working with the awardees of the@Work “Be the Game Changer” and the open-to-the-public “Honey, I Shrunk the Payloads” Challenges for potential integration of their payload instruments with COLDArm for a future demonstration.
The avionics could eventually be programmed to autonomously control the arm’s joints to perform various movements and collect pictures and sensor data. Through future software developments, COLDArm’s avionics could enable autonomous operations on ocean worlds like
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