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Bruce Sherwood  
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 More options Apr 24 2012, 1:54 pm
From: Bruce Sherwood <bruce.sherw...@gmail.com>
Date: Tue, 24 Apr 2012 11:54:53 -0600
Local: Tues, Apr 24 2012 1:54 pm
Subject: Re: [sfx: Discuss] ObjetGeometries - YouTube
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The latest issue of The Economist has a whole section on 3D printing.
There are quotes from knowledgeable people that although the current
technology is such that it's used mainly for prototypes and special
orders, progress is so rapid that they think it will quickly become
used for regular manufacturing.

Bruce

On Tue, Apr 24, 2012 at 11:40 AM, Greg Sonnenfeld <gsonn...@gmail.com> wrote:
> Hello,
> 3D printing is really great for prototyping and design and certainly
> has potential for keeping prototype work in america. For production
> parts though, its very costly compared to classic plastic injection
> molding.

> A couple years ago I had a face plate and bezel (3cm x 15cm x 27cm )
> printed for about $400 dollars from a Stratasys 3-D printing machine,
> it was an excellent print, though it had a satin finish, wherein the
> spec called for gloss.

> We had a production mold for the same part made in China, the 2 molds
> were ~$5.5k. We had received quotes from US companies of ~$15k for the
> same molds.The unit cost of production was ~$3-4 per bezel/faceplate.

> In very small quantities, 3d printing makes sense. In situations where
> the "fixed cost" of a mold is negligible, I doubt 3d printing will
> ever be able to compete.

> P.S. I will note that it was cheaper to have our metal backings made
> in the US. The shipping costs for iron from the US to China was very
> high (though shipping by ocean freighter was not considered).

> ****************************
> Greg Sonnenfeld

> “The scientists of today think deeply instead of clearly. One must be
> sane to think clearly, but one can think deeply and be quite insane.”

> On Tue, Apr 24, 2012 at 10:18 AM, Tom Johnson <t...@jtjohnson.com> wrote:
>> I think 3D printing like this has huge potential for places like New
>> Mexico.  Anywhere, really, but given the low threshold of entry -- both in
>> terms of $$$ and skills -- it's a way to bring the machine tool industry
>> back to North America.

>> http://www.youtube.com/user/ObjetGeometries?v=Mmq2fi2xXoQ

>> About 3D Printing & Rapid Prototyping

>> Objet is the world's leading provider of advanced 3D printing and rapid
>> prototyping machines. We offer a flexible range of desktop, office and
>> advanced multi-material 3D printers along with nearly 70 different 3D
>> printing materials.

>> -tom johnson

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