DEVELOPMENT OF COMPUTER SOFTWARE FOR CALCULATION OF VOLUMETRIC ERROR MAP IN 3 AXIS CMMs

  • Park, H. (Dept. of Mechanical Eng., UMIST, Manchester, UK) ;
  • M.Burdekin (Dept. of Mechanical Eng., UMIST, Manchester, UK) ;
  • G.Peggs (Mechanical Optical Measurement Div. NPL, Teddington, UK)
  • Published : 1992.03.01

Abstract

Verification, calibration, and compensation are becoming more essential elements for manufacture and maintenance of high performance CMMs. A computer module of volumetric error generation has been developed to calculate volumetric errors (random as well as systematic) from measured parametric errors, accepting most types of CMMs in current use. New transformation rules have been derived to transform all the parametric errors with respect to the origin of working volume considered, then incorporated, then incorporated into the module of error calculation. Two cases of practical CMMs are tested with the developed module, and showed good performance.

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