A Generalized Geometric Error Model for Multi-Axis Machines

K. F. Eman*, B. T. Wu, M. F. DeVries

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

105 Scopus citations


A methodology has been presented to build a generalized error model of a multi-axis machine of arbitrary configuration. It is based on the assumption of rigid body motions and utilizes homogeneous transform matrices. The developed error model accounts for errors due to inaccuracies in the geometry and mutual relationships of the machine's structural elements as well as for errors resulting from the relative motion between these elements. The model is particularly useful for identifying the dominant contributors to the overall error within the machine's working volume.

Original languageEnglish (US)
Pages (from-to)253-256
Number of pages4
JournalCIRP Annals - Manufacturing Technology
Issue number1
StatePublished - 1987


  • Machine
  • error models
  • machine accuracy
  • multi-axis machines
  • tools

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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