RE: metal castings

From: Richard M. Harrington (
Date: Wed Oct 09 2002 - 18:16:51 EEST

Hi Larry,

Not exactly what you asked for, but we have developed a material that we
can pour in RTV tooling that will investment cast really well with no
variable shrinkage.

Let me know if you have an interest.

Rick Harrington

Harrington Product Development Center
Your partner in product development solutions

1756 Tennessee Ave
Cincinnati, Ohio 45229-1202
Phone: 513.482.4702
Fax: 513.482.4706
Toll Free: 800.482.2240 Ext. 4702
Mobile: 513.607.9872
Web Site:

-----Original Message-----
From: [] On
Behalf Of Blasch, Larry
Sent: Tuesday, August 27, 2002 12:16 PM
To: 'Elaine Hunt'; RPML
Subject: RE: metal castings


At OPW we produce a number of prototype and pre-production sand castings
from SLA master patterns. 10-20 different casting designs per year on

Turn around for castings from our production foundries varies, but is
typically 7-14 days depending on the complexity of the part, our project
needs and number of castings required. Quantities from SLA tooling vary

Casting size ranges from 1-2 ounces (>1 cubic inch) to 10+

We have prototyped sand castings in Iron, Steel, Aluminum, Zinc,
and Bronze and plan to continue to do so.

We are actively seeking an RP process that will allow the creation of
Foam" casting patterns directly without tooling.

Any ideas?


Lawrence R. Blasch
Design Engineer
CAE Systems Administrator
OPW Fueling Components
P.O. Box 405003
Cincinnati, OH 45240-5003 USA
Voice: (513) 870-3356
Fax: (513) 870-3338

-----Original Message-----
From: Elaine Hunt []
Sent: Tuesday, August 27, 2002 11:28 AM
Subject: metal castings

I was wondering what is the largest and smallest size castings made
RP? Time they took from design to castings? Anyone doing anything new
this area or is it becoming a dead issue?


"Basic research is what I am doing when I don't know what I'm doing."
Wernher von Braun
"We make a living by what we get. We make a life by what we
give." Winston Churchill

Elaine Hunt, Director
Laboratory to Advance Industrial Prototyping
100 Fluor Daniel Building
Clemson University
Clemson, SC 29634

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