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The machines are real and have been around for years.
The video is a well distributed puff piece by this particular manufacturer.
A 'Powder Based' machine such as this wouldn't REALLY be a candidate
for zero-g space applications would it? ;-)
Extrusion machines would be better suited for that environment.
Even XKCD jumped onto the bandwagon (in their non-PG sorta way ;-) )
http://xkcd.com/924/
.
At 4:19 AM -0400 7/15/11, Marty Weiss wrote:
Hi all,
The latest "wow!" video making the rounds on the internet
recently is the 3-d printer clip on YouTube and other internet vid
sources. In case someone hasn't seen it... a narrator takes us into
a lab where the "inventor" shows the process whereby he takes a
wrench, scans it in a new type of scanner, puts the printout into
some sort of 3-d printer (after coloring the adjusting mechanism
red) which contains some sort of "resin"material and after a few
minutes the narrator reaches into the pool of "resin" and out pops a
copy of a real working wrench with a red adjustment gear. The copy
does the same job as the real wrench.
The narrator is a "real person"... a PhD and astronaut (at least
according to several articles I Googled), but the whole thing has to
be an elaborate hoax. Either that or it's the biggest invention
since the light bulb. If it is a hoax, I have yet to see anyone
write about it on any discussion group, on YouTube, or other news
source. Likewise, a real invention such as this would have been
heralded throughout the scientific world by now. Anyone have any
explanation or comments?
Marty
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Forum for Physics Educators
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_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l