Investigation on a replica step gauge for optical 3D scanning of micro parts

Angela Cantatore (Invited author), Leonardo De Chiffre (Invited author), S. Carmignato (Invited author)

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    Abstract

    This work deals with investigation of the stability over time and surface cooperativeness of a calibration artefact intended for optical scanner verification. A replica step gauge with 11 grooves, made of bisacryl material for dental applications (luxabite) and previously fabricated was studied. The stability over time of the step gauge was evaluated by repetitive measurement campaigns over a period of eight months, using measurements taken with a tactile CMM and with an optical scanner. Surface cooperativeness was investigated by measuring artefact grooves and pitch and comparing results with tactile measurements. Results demonstrate good stability of the step gauge and material transparency good cooperativeness, which is compensated when a unidirectional strategy is followed.
    Original languageEnglish
    Title of host publicationProceedings of the euspen International Conference
    Publication date2010
    Publication statusPublished - 2010
    Event10th International Conference of the European Society for Precision Engineering and Nanotechnology - Zürich, Switzerland
    Duration: 18 May 200822 May 2008
    Conference number: 10

    Conference

    Conference10th International Conference of the European Society for Precision Engineering and Nanotechnology
    Number10
    Country/TerritorySwitzerland
    CityZürich
    Period18/05/200822/05/2008

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