The Twentieth Annual International Solid Freeform Fabrication (SFF) Symposium, held at The
University of Texas in Austin on August 3-5, 2009, was attended by 123 national and international
researchers from 9 countries. Papers addressed SFF issues in computer software, machine design,
materials synthesis and processing, and integrated manufacturing. The diverse domestic and foreign
attendees included industrial users, SFF machine manufacturers, university researchers and
representatives from the government. The Symposium organizers look forward to its being a
continuing forum for technical exchange among the expanding body of researchers involved in SFF.
The Symposium was again organized in a manner to allow the multi-disciplinary nature of the SFF
research to be presented coherently, with various sessions emphasizing process development, design
tools, modeling and control, process parameter optimization, applications and materials. We
believe that documenting the changing state of SFF art as represented by these Proceedings will
serve both those presently involved in this fruitful technical area as well as new researchers and
users entering the field.
New this year was recognizing outstanding research by a senior and junior researcher. The
recipient of the first Freeform and Additive Manufacturing Excellence (FAME) Award was Phill
Dickens of Loughborough University. The junior award, the International Outstanding Young
Researcher in Freeform and Additive Manufacturing Award, went to Carolyn Seepersad of The
University of Texas at Austin. These awards include a framed certificate, a small honorarium and a
The awards were presented at a conference banquet Monday evening, August 3. As part of the
celebration of the twentieth anniversary of the International Solid Freeform Fabrication
Symposium, several special presentations were given. Tom Mueller of Express Pattern described
the manufacture of the FAME trophies which were donated by his company. The trophy art was
designed by digital artist, Sheba Grossman. She described the artwork and some of the details of its
development. Finally, Harris Marcus, the founder of the SFF Symposium, made some remarks
about the circumstances surrounding the first SFF Symposium held in 1990.
This year’s best oral presentation was given by Christopher Williams of Virginia Tech University.
Selection is based on the overall quality of the paper, the presentation and discussion at the meeting,
the significance of the work and the manuscript submitted to the proceedings. The paper title was,
“Design and Manufacture of Formula SAE Intake System Using Fused Deposition Modeling and
Fiber-Reinforced Composite Materials” by Ryan Ilardo and Christopher B. Williams. Selected
from 84 oral presentations, his presentation appears on Page 770 of this Proceedings. The best
poster presentation selected from 15 posters was given by David Espalin of The University of Texas
at El Paso (co-authored by K. Arcaute, D. Rodriguez, F. Medina, M. Posner, R. Wicker). The paper
title was, “Fused Deposition Modeling of Polymethylmethacrylate for Use in Patient-Specific
Reconstructive Surgery”, and the paper starts on Page 569.
The editors would like to extend a warm “Thank You” to Rosalie Foster for her detailed handling of
the logistics of the meeting and the Proceedings, as well as her excellent performance as registrar and problem solver during the meeting. We would like to thank the Organizing Committee, the
session chairs, the attendees for their enthusiastic contributions, and the speakers both for their
significant contribution to the meeting and for the relatively prompt delivery of the manuscripts
comprising this volume. We look forward to the continued close cooperation of the SFF
community in organizing the Symposium. We also want to thank the Office of Naval Research
(N00014-09-1-0940) and the National Science Foundation (CMMI-0905636) for supporting this
meeting financially. The meeting was co-organized by the University of Connecticut at Storrs, and
the Mechanical Engineering Department, Advanced Manufacturing Center, and Laboratory for
Freeform Fabrication at The University of Texas at Austin.
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