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A comment on Jay Leno’s 3D Printer Makes Old Car Parts. Parent comment

Re:Jay Leno’s 3D Printer Makes Old Car Parts by jacquesm on Thursday July 09, 2009 @03:03PM (#696457)
hehe, good point :)

Aerospace CNC work is amazing stuff, it's not rare to see a block of aluminum be reduced to less than 5% of its starting weight as a finished part, the rest is scrap.

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Re:Jay Leno’s 3D Printer Makes Old Car Parts by DannoHung on Thursday July 09, 2009 @03:27PM (#696503)
They don't recycle?
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Re:Jay Leno’s 3D Printer Makes Old Car Parts by jacquesm on Thursday July 09, 2009 @03:44PM (#696534)
Yes, absolutely they do. But it's not as straightforward as it should be because the aluminum swarf is contaminated with cutting oils and other nasty materials.

All the scrap gets recycled, a typical price for a pound of 'dirty' scrap is $0.09. Contrast that with $.70 for a pound for stock (and more expensive if it is a special grade or shape).

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Re:Jay Leno’s 3D Printer Makes Old Car Parts by billswift on Saturday July 11, 2009 @06:46AM (#699053)
I'm curious where you got that scrap price. The last time I sold aluminum scrap (about a decade ago) they were paying $0.24 a pound for dirty scrap.
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