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leno's money now:3d laser scan - rapid prototyping

updated sat 21 aug 10


rickmahaffey@COMCAST.NET on fri 20 aug 10

Too late guys I saw this system in China duing a presentation from a Korean=
University in 2006.=3DC2=3DA0 They now have it linked to a cnc milling mac=
making molds from the scan for ceramic production.=3DC2=3DA0 The best part=
the group of Korean women students running it at the ISCAEE conference dur=
ing the Bienalle in Korea (they were flat out beautiful!!!).=3D20

The good thing for those of us who make things by hand is that the companie=
s are not interested in trying to sell what we make - they know how hard it=
can be to sell.=3DC2=3DA0 ;-)=3D20


James Freeman on fri 20 aug 10

On Fri, Aug 20, 2010 at 10:56 AM, wrote:
> Too late guys I saw this system in China duing a presentation from a Kore=
an University in 2006. They now have it linked to a cnc milling maching ma=
king molds from the scan for ceramic production.

Rick, et alii...

Such systems are much older than that. When I was a securities
analyst for a Wall Street firm back in the late 1980s, one of the
companies we followed was 3D Systems (NASDAQ: TDSC, They are the originators
of rapid prototyping technology, and were making and selling such
systems in 1986. Their popular system when I was following them used
a sort of powdered wax which was selectively sintered by lasers to
form the part, with the unsintered powdered wax simply falling away.

A friend's family owned a machine shop in the early 1990s that
employed a rapid prototyping machine which employed paper as the
medium. It digitally cut the scanned, mapped, or digitally drawn part
into a zillion wafer-thin slices (think CAT scan), cut each slice out
of paper, and stack laminated all of the slices into the finished
form. All that was required was a bit of fairing, and one had the
completed model in hand.

Of course, the technology probably goes back even farther, all the way
to Da Vinci. I think it's in his notebooks, right between the Diving
Bell and his quotation about "making stuff".

All the best.


James Freeman

"All I say is by way of discourse, and nothing by way of advice.=3DA0 I
should not speak so boldly if it were my due to be believed."
-Michel de Montaigne