Pseudo-random tool paths for CNC sub-aperture polishing and other applications

Christina R. Dunn, David D. Walker

Research output: Contribution to journalArticlepeer-review

145 Citations (Scopus)


In this paper we first contrast classical and CNC polishing techniques in regard to the repetitiveness of the machine motions. We then present a pseudo-random tool path for use with CNC sub-aperture polishing techniques and report polishing results from equivalent random and raster tool-paths. The random tool-path used - the unicursal random tool-path -employs a random seed to generate a pattern which never crosses itself. Because of this property, this tool-path is directly compatible with dwell time maps for corrective polishing. The tool-path can be used to polish any continuous area of any boundary shape, including surfaces with interior perforations.

Original languageEnglish
Pages (from-to)18942-18949
Number of pages8
JournalOptics Express
Issue number23
Publication statusPublished - 10 Nov 2008
Externally publishedYes


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