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Basics of Coordinate Metrology
Unit 9: Preparing the Measurement - Cleaning

Step 2 of 7
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Cleaning a glass lens to be measured with alcohol and a cotton swab

Clean the part, the work holding fixture on the CMM, the styli, etc.:

Before the part is taken to the work holding fixture of the coordinate measuring machine, it must be clean. It is necessary to clean it, otherwise oil and dirt will lead to wrong results. This will make the entire measurement unusable!


Cleaning a part with a clean, lint-free dry cloth

      
  • Never clean with cleaning agents that attack or abrade the surface.
  • Never clean with cloths or rags that leave lint.
  • Clean not only the part but also the work holding fixture on the CMM, the reference sphere ("calibration sphere") and the styli.