Low Cost CAD/CAM System for Machine Parts

  • W. B. Ngai
  • Y. K. Chan


A CAD/CAM system known as the MODCON(1,2,3) has shown to be useful for producing machine parts such as rocker-lever, connecting-rods, etc. In spite of the usefulness of the MODCON system, it suffers the inherent disadvantage of a batch system and therefore does not interact with a MODCON user wishing to design a machine part. An interactive CAD/CAM system is now proposed which is conceptually similar to the MODCON system. The proposed system is implemented on a microprocessors based machine which includes a central processor, a numerical data processor and another processor for I/O. This low-cost/high-power machine enables a designer to interactively design a machine part to his satisfaction before a N.C. paper tape is produced for manufacturing purpose.


Machine Part Horizontal Cylinder Paper Tape Slope Face Graphic Extension 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. [1]
    Y. K. Chan and W. A. Knight, “MODCON: A system of the CAM for dies and moulds,” in Proc. Computer Aided Design Conference, Brighton, England, pp. 361–369, April 1980.Google Scholar
  2. [2]
    Y. K. Chan, “A perspective view of the MODCON system,” in Proc. 18th Design Automation Conference, Nashville, TN, pp. 179–188, June 1981.Google Scholar
  3. [3]
    Y. K. Chan, “Computer aided manufacturing of machine parts by volume buildings,” in Proc. Intergraphics ‘83, Tokyo, Japan, Session B3, pp. 1–19, April 1983.Google Scholar
  4. [4]
    I. C. Braid, “Designing with Volumes,” Cambridge University Press, 1978.Google Scholar
  5. [5]
    C. M. Brown, “PADL-2: A technical summary,” IEEE Computer Graphics and Applications, pp. 69–84, March 1982.Google Scholar
  6. [6]
    W. A. Carter, “ROMULUS - The design of a geometric modeller,” Publication p-80 CM 01 by CAM-I, Inc., November 1979.Google Scholar

Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • W. B. Ngai
    • 1
  • Y. K. Chan
    • 1
  1. 1.Department of Computer ScienceChinese University of Hong KongNew Territories, Hong KongChina

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