From: Bondy, Jeff S <Jeff.Bondy_at_alcoa.com>
Date: Fri Nov 14 2008 - 18:19:56 EET

To be fair, 3D has created two different wax machines. The sample you
were looking at were not from their higher res machine, the CPX 3000,
which is designed for finer detailed applications. These parts have
much smoother support-side surfaces.
The CP3000 parts you saw are intended for larger applications and faster
build times. The supports are "porous" to allow easier removal. Thus,
the support surfaces will be less smooth than the others but still far
better than anything we've seen so far and should save us
post-processing time over other technologies. The dissolvability of the
supports alone has opened up more applications for us using investment

Jeff Bondy
Alcoa Power & Propulsion
Howmet Research
1500 South Warner Street
Whitehall, Michigan 49461
(231) 894-7762
(231) 981-3212 fax


From: owner-rp-ml@rapid.lpt.fi [mailto:owner-rp-ml@rapid.lpt.fi] On
Behalf Of Zubrickie, Robert F
Sent: Monday, November 10, 2008 7:19 AM
To: joepuska.iwon; rp-ml@rapid.lpt.fi
Subject: RE: [rp-ml] 3D Systems ProJet 3000 Real Wax
I just received a part from this machine from 3D Systems. Side walls and
top surfaces look great but the bottom surface is still the worst. It is
not as bad as other technologies but it still may need a secondary
process before sending to casting.
It is all relevant to the level of detail your industry needs.
Bob Zubrickie
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Received on Fri Nov 14 18:29:34 2008

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