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.

© 2008 Optical Society of America

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  1. D. D. Walker, D. Brooks, A. King, R. Freeman, R. Morton, G. McCavana, and S-W Kim, "The ‘Precessions’ tooling for polishing and figuring flat, spherical and aspheric surfaces," Opt. Express 11, 8, 958-964, (2003), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-11-8-958.
  2. D. D. Walker, R. Freeman, R. Morton, G. McCavana, A. Beaucamp,  et al. "Use of the ‘Precessions’ process for pre-polishing and correcting 2D & 2½D form," Opt. Express 14, 11787-11795 (2006), http://www.opticsinfobase.org/abstract.cfm?URI=oe-14-24-11787.

2006 (1)

2003 (1)

Beaucamp, A.

Brooks, D.

Freeman, R.

Kim, S-W

King, A.

McCavana, G.

Morton, R.

Walker, D. D.

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