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Check out CR4's first live Periscope broadcast taking place right now (2:00 pm EST, 1/21/16). 3D printing a wrench that NASA printed in space to meet the needs of an astronaut - http://nasa3d.arc.nasa.gov/detail/wrench-mis.
Back live for the last 10% of the ratchet wrench printing (3:25 PM EST 1/21/16).
None of any of this worked for me. Archiving to YouTube might have been better.
Hoping to have the archives up on Youtube soon. I don't think that Periscope is permanent.