Volumetric error analysis of a Stewart platform-based machine tool

A. J. Patel*, K. F. Ehmann

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

148 Scopus citations


Striving for greater accuracy, some machine tool manufacturers are developing parallel structures for the next generation machine tool. Therefore, tools are needed to analyze the effect error sources have on this type of structure. A model of a Stewart Platform based machine tool is developed that provides the framework for inclusion of all relevant error sources. An error analysis is presented based on an error model formed through differentiation of the kinematic equations, and a sensitivity analysis is given as a design tool for tolerance allocation during manufacture. Finally, automated error analysis software is demonstrated that graphically depicts position and orientation errors along tool paths and throughout the workspace.

Original languageEnglish (US)
Pages (from-to)287-X62
JournalCIRP Annals - Manufacturing Technology
Issue number1
StatePublished - Jan 1 1997


  • Accuracy Analysis
  • Error Analysis
  • Error Sensitivity

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


Dive into the research topics of 'Volumetric error analysis of a Stewart platform-based machine tool'. Together they form a unique fingerprint.

Cite this