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Robot does mechanical surgery to heal itself outside the ISS

Posted in Science on 28th May, 2014 11:50 PM by AlexMuller

For the first time, a robot in space has used its own mechanical dexterity to fix itself without any assistance from astronauts on the scene. The Canadian built Canadarm2 robotic arm used its own mechanical hand called Dextre to perform a series of operations to replace two faulty cameras attached to itself.

Back in 2012 the camera down near Canadarm2's base went on the fritz, so a couple of astronauts removed them during a spacewalk. More recently however, the super critical camera attached at its elbow joint has started to get a bit fuzzy, so the Canadian Space Agency team figured they could use the arm to fix both problems at once.
First Dextre detached the fuzzy camera from the elbow joint, and reattached it down by the arm's base where the old broken camera was removed a couple of years ago. Then Canadarm2 went over to the Kibo airlock where a shiny new camera was waiting, and installed it at its own elbow in place of the old fuzzy one.
These cameras are pretty hefty at around 47 pounds each, and they are about the size of an old-school CRT-style computer monitor. They don't just snap into place like LEGO pieces, so for each operation Dextre had to unscrew a bolt and make sure it didn't slip between its mechanical fingers and fly off into the emptiness of space. That's a tricky task for a robot that hasn't been setup to perform the same exact job repeatedly.

Tags: spacerobotroboticsISSCanadarm2

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Author: Guest
Posted: 2014-05-29
Great news! This will no doubt boost the confidence in robotics and not just their application in space explorations. They will be here on Earth in ever increasing numbers! Reply


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