Fast NC Cutting Verification Using Graphic Hardware

그래픽 하드웨어를 이용한 NC 가공 검증의 고속화

  • 김경범 (국민대 자동차공학전문대학원) ;
  • 이상헌 (국민대 자동차공학전문대학원) ;
  • 우윤환 (국민대 자동차공학전문대학원)
  • Published : 2002.10.01

Abstract

The z-map structure is widely used for NC tool path verification as it is very simple and fast in calculation of Boolean operations. However, if the number of the x-y grid points in a z-map is increased to enhance its accuracy, the computation time for NC verification increases rapidly. To reduce this computation time, we proposed a NC verification method using 3-D graphic acceleration hardwares. In this method, the z-map of the resultant workpiece machined by a NC program is obtained by rendering tool swept volumes along tool pathos and reading the depth buffer of the graphic card. The experimental results show that this hardware-based method is faster than the conventional software-based method.

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