Re: LOM PLASTIC MATERIAL and PARTS

From: Phoon Keong (Champion Machine Tools  (S) Pte Ltd.), Donald Klosterman (University of Dayton)
To: RP-ML
Date: Wednesday, October 25, 1995
Subject: Re: LOM PLASTIC MATERIAL and PARTS
Date: Wed, 25 Oct 95 12:32:00 PDT
     I am responding to an inquiry about alternative materials for the LOM 
machine.  The University of Dayton Research Institute and Helisys are 
partners on a project (funded by ARPA/ONR) in which ceramic matrix 
composites are being fabricated from tape- cast ceramic tapes.  We have 
successfully used a LOM2030 machine to fabricate a few  monolithic SiC and 
AlN parts so far.  We are presently expanding the envelope of monolithic 
parts that we can make, and our next step is SiC/SiC composite parts.  As 
part of our program, Helisys is redesigning the LOM machine to accommodate 
the fabrication of composites in which continuous fibers maintain their 
continuity in curved layers (similar to a thermoforming process).
     The University of Dayton Research Institute may also be working more closely 
with Helisys on the development of rapid tooling for polymer composites. 
 Helisys has successfully fabricated tool-like articles using a prepreg of 
ceramic fiber and B-staged epoxy resin.  These articles demonstrated 
excellent compressive properties.
     For more information on ceramic materials from LOM, you will soon be able to 
browse our home page  at the address
          http://www.udri.udayton.edu/
and under the "Projects, Advanced Manufacturing" link.  We'll have this link 
ready within a few days.
Regards,
Don Klosterman, Ph.D.
University of Dayton Research Institute
Dayton, Ohio
phone : 513-229-2794
fax : 513-229-2503
Email : Klosterman@udri.udayton.edu

Subject: LOM PLASTIC MATERIAL and PARTS
Date: Thursday, October 12, 1995 10:16PM
Dear ALL,
     Does anyone out there have any working experience, comments or seen any good
LOM plastic built parts or other building materials in development for LOM
machine ?
     We are very interested in this development.
Thank you
Phoon
Asst. Manager                                   Tel     (65) 4817000
Rapid Prototype Technology                      Fax     (65) 4818855
Champion Machine Tools (S) Pte Ltd.             Email 
  ckphoon@singnet.com.sg