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A comment on Nasa just emailed a wrench to the ISS.

Re:Nasa just emailed a wrench to the ISS by netcraft on Friday December 19, 2014 @11:45AM (#8772995)
are there design considerations for 3d printing in low gravity? It seems like not being able to assume gravity would be a significant hurdle.
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Re:Nasa just emailed a wrench to the ISS by ChikkaChiChi on Friday December 19, 2014 @11:48AM (#8773010)
Yes. Apparently they use materials with a lower melting point than those commonly found in Makerspaces:

http://www.nasa.gov/mission_pages/station/research/experimen...

I believe this is the first time they have used this technology outside of experimentation.

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