November 21, 2007

Contour Crafting


Description:
Contour Crafting (CC) is a computer-automated construction technology, invented and developed at USC by Behrokh Khoshnevis Professor, University of Southern California to deliver rapid production, ease of use, significant reduction of waste, and other substantial cost savings. Not only will CC have a significant impact on the point of delivery, but the whole support structure will be similarly affected by the technology. We anticipate substantial revenues for a wide variety of direct users of the technology and its suppliers. In addition to the enormous economic potential, CC has been designed to deliver improved quality of life, superior safety, and beneficial environmental impact. In this sense, CC will enable the construction of custom-designed, low-cost housing with a level of quality heretofore unobtainable. Further, safety elements inherent in the process will significantly reduce the rate of on-the-job injuries that are so prevalent in the construction industry today, thereby lowering the costs of litigation, insurance, and medical treatment, to say nothing of saving lives. The environmental impact will also be significant through energy savings for construction and the near-elimination of waste product. In the long run, CC will revolutionize the construction industry.



Technology:
The CC Technology: CC is a hybrid fabrication method that combines an extrusion process for forming object surfaces and a filling process to build the object core in layered fashion. The extrusion nozzle used to create structural elements has multiple outlets, one for each side, and others for the inner (core) of a wall structure. Each side orifice has an adjacent trowel. As the material is extruded, the traversal of the trowels creates smooth (2 micron has been achieved) outer and top surfaces on each layer. The nozzle can be deflected to create non-orthogonal surfaces such as domes and vaults. Co-extrusion of multiple materials is also possible. For example, plaster as the outer surface material and concrete as the core structural material may be co-extruded by the CC nozzle.







Conclusion:
Counter crafting is a mass customizinging technology that reduces the cost of construction and also production time. Interested part of this technology is it has a different goal of mass customizing in the sence of mass urban or rural housing sectors. On the other hand most of the available mass customization procedures are cost worthy and industrial production. This counter crafting is on site mass customization system that is really cheap in total. Counter crafting works on very simple logics of building construction where as the other mass customizers deals with complex computer generated design solutionns andmateriality.
Whereas in the use of counter crafting it has a limitation on materials and design complexsities although the goal is different from the traditionla mass customization system and CC has huge potentialities but this simple technology still not proved on the field of construction and architecture.

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