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Engineering Materials
NASA Tests 3D-Printed Rocket Engine Part
7/29/2013

NASA and Aerojet Rocketdyne have completed hot-fire tests on a rocket injector assembly made with a selective laser melting 3D printing process and powdered metals.(Source: NASA Glenn Research Center)
NASA and Aerojet Rocketdyne have completed hot-fire tests on a rocket injector assembly made with a selective laser melting 3D printing process and powdered metals.
(Source: NASA Glenn Research Center)

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Ann R. Thryft
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Re: University ties
Ann R. Thryft   7/31/2013 8:03:38 PM
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I think these partnerships will happen more as 3D printing/AM moves from a proprietary niche industry to a larger, more open platform marketplace. The formation of the National Additive Manufacturing Innovation Institute (NAMII) is giving this a boost, also.

Charles Murray
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Re: University ties
Charles Murray   7/31/2013 6:53:01 PM
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Yes, Ann, let's hope that more universities follow UConn's and Pratt & Whitney's lead on this. As you point out, it's a win-win.  

Ann R. Thryft
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Re: University ties
Ann R. Thryft   7/31/2013 1:34:23 PM
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I agree, Chuck. Looks like the commercial-entity-plus-university combination is increasing in 3D printing/AM R&D research. I think that makes a lot of sense for several reasons: universities get funding they need for practical, hands-on research, companies get access to fine minds, and students get a leg up on learning about what's going on in an industry.

TJ McDermott
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Re: Amazing printer
TJ McDermott   7/30/2013 8:22:11 PM
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I can't take credit for it - author John Ringo's use of it is the first of which I know.

William K.
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Re: Amazing printer
William K.   7/30/2013 7:25:12 PM
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TJ, even if the part has never been made before, the only thing that the printer can do is to replicate the design. Until a design exists as a 3D file it can't be produced by most of these machines.

Rob Spiegel
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Re: Amazing printer
Rob Spiegel   7/30/2013 7:20:00 PM
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Fabber. That's a good one TJ. Sometimes we don't get a cool new name. Some names end up just descriptive: smartphone.

TJ McDermott
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Re: Amazing printer
TJ McDermott   7/30/2013 6:55:16 PM
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William K, if a part does not already exist and is in fact being made for the first time, it is not being replicated.

Fabricate is defined as to construct or manufacture something. 

These machines may not always be replicating something, but they will always be fabricating.

Fabber is assuredly a dilution, but we do already have prefabbed in the language.

William K.
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Re: Amazing printer
William K.   7/30/2013 6:45:52 PM
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TJ, Actually "replicator" is the perfect word for a macjhine that does the 3D manufacturing process. Fabrication almost always involves cutting up materials to make pieces that are then fabricated into an assembly. BUT the lazy media will undoubtedly come up with a shorter and much less accurate word for it. Just look at that term "apps", which is a lazy way of stating "application program", and you have a perfect example of how dumb lazy-talk can be. Even worse, consider the fact that the original meaning is far removed from the term, so that really people have no idea as to what they really are saying or what it means.

Sorry about the rant, but lazy speech is something that bothers me  sometimes.

Ann R. Thryft
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Re: New dimensions to 3D printing
Ann R. Thryft   7/30/2013 3:21:12 PM
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Mydesign, thanks for your enthusiasm. There's a lot going on with 3D printing of metals, more than most people know, since these companies have been very quiet compared to the hobbyist end machines that use plastics.



Ann R. Thryft
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Re: Amazing printer
Ann R. Thryft   7/30/2013 12:55:43 PM
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TJ, your sci-fi movie scenario sounds just like what NASA envisions--feed everything into it and out comes the perfect replacement part. I'd like to see multi-material (metals + plastic) 3D printers, too. Those may not be so far away, since the architectural types use a wide variety of materials already.

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