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
CountrySwitzerland
CityZürich
Period18/05/200822/05/2008

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