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Abstract

This paper presents the results of a metrological analysis of the additively manufactured (AM) copies of a complex geometrical object, namely the fossil skull of Madygenerpeton pustulatum. This fossil represents the unique remains of an extinct “reptiliomorph amphibian” of high importance for palaeontological science. For this research, the surface was scanned and twelve different copies were 3D-printed using various devices, materials, and AM techniques. The same digitized model was used as a reference to compare with the surfaces obtained by Mitutoyo Coordinate Measuring Machine (CMM) CRYSTA-Apex S 9166 for each copy. The fidelity of the copies was assessed through statistical analysis of the distances between compared surfaces. The methodology provided a good background for the choice of the most accurate copies and the elimination of the less accurate ones. The proposed approach can be applied to any object of complex geometry when reproduction accuracy is to be assessed.
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Authors and Affiliations

Mirosław Rucki
1
ORCID: ORCID
Yaroslav Garashchenko
2
ORCID: ORCID
Ilja Kogan
3 4
ORCID: ORCID
Tomasz Ryba
5
ORCID: ORCID

  1. Faculty of Mechanical Engineering, Kazimierz Pulaski University of Technology and Humanities in Radom, Poland
  2. Department of Integrated Technologic Process and Manufacturing, National Technical University “Kharkiv Polytechnic Institute”, Ukraine
  3. Museum für Naturkunde Chemnitz, Germany
  4. Geological Institute, TU Bergakademie Freiberg, Germany
  5. Łukasiewicz Research Network – Institute for Sustainable Technologies, Radom, Poland

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