November 11, 2005 —
Behrokh Khoshnevis, standing, and post-doctoral student Dooil Hwang with prototype Contour Crafting machine.
The USC Viterbi School of Engineering today announced that it has received a $100,000 grant from the Annenberg
support intensified research on Contour Crafting, an
innovative computer-automated construction technology that promises to
reconstruct areas destroyed in tsunamis, hurricanes, earthquakes or
other disasters in weeks rather than months or years.
Because of this support, USC engineers are optimistic that they will be
able to demonstrate a full-scale prototype in 2006, as tangible proof
of a process that promises swift new shelter to the multitudes
worldwide that are left homeless due to natural disasters or war each
Directing the Contour Crafting endeavor is Behrohk Khoshnevis, a
professor in the USC Viterbi School of Engineering, who created the
system recalling tragic earthquake damage he observed in his native
Iran during the early 1990s.
“I want to thank the Annenberg Foundation for its support and vision in
helping to pave the way for valuable and enduring global
rehabilitation,” said Khoshnevis. “In addition to providing a
solution for millions of low income families and victims of natural
disasters, Contour Crafting has the potential to reduce the number of
workers seriously injured or killed in the course of construction
projects in the United States."
Khoshnevis is an expert on so-called rapid prototyping systems, which
“print” three -dimensional objects by building them up in thin
layers. Two years ago, with funding from the National Science
Foundation, Khoshnevis began work on a way to up-size the process to
construct houses and other structures.
Hurricane Katrina storm surge damage, Pascagoula, Mississippi, [image: U Buffalo MCEER]
Khoshnevis’ existing Contour Crafting machine extrudes concrete or
other liquid building material much the way toothpaste comes out of a
tube, molding the material with trowels as it exits a nozzle. Mounted
on a crane or gantry, the machine continuously circles the site, laying
down layer after layer. The system creates the foundation and
structural skeleton as it builds, leaving space for plumbing and
electrical conduits. Khoshnevis says it should be able to build a
full-scale 2,000 square-foot house in one day, rather than in six
months or more.
“The machine works without blueprints, proceeding directly from the
CAD-CAM computer drafting systems widely used by architects today,”
said Khoshnevis. “What the architect designs, the robotic arm creates.”
Khoshnevis believes Contour Crafting "will enable the construction of
custom-designed, low-cost housing with a level of quality considered
unachievable in such a limited or concentrated timeframe."
Contour Crafting is also being evaluated by NASA as a potential
building system for the moon or Mars.
About the Annenberg Foundation:
The Annenberg Foundation exists to advance the public well-being
through improved communication. As the principal means of
achieving its goal, the foundation encourages the development of more
effective ways to share ideas and knowledge. The Annenberg
Foundation has offices in Radnor, PA and Los Angeles, CA.