The restoration and reproduction of historical motorcycle components require precise digital reconstruction and thorough material characterization. This study presents the reverse engineering of the engine cylinder from the historic Indian Scout 37 motorcycle, utilizing 3D scanning, CAD modeling, and metallurgical analysis. A high-resolution digital model was generated using structured-light scanning, with geometric corrections applied to account for wear-induced distortions. In parallel, material analysis revealed the cylinder’s composition and manufacturing characteristics. For instance, the material was classified as EN-GJL-HB155 cast iron based on its chemical composition and measured hardness of 167 ± 3 HBW. The collected data served as the basis for comprehensive technical documentation to support accurate reproduction. This research highlights the importance of integrating modern digital techniques and material science to support the preservation and remanufacturing of historic mechanical systems.

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Reverse Engineering of a Historic Motorcycle Engine Cylinder Through 3D Scanning and Material Analysis

  • Lukáš Kudrna,
  • Štěpán Pravda,
  • Jan Blata,
  • Ladislav Hrabec,
  • Marek Šimčík,
  • František Fojtík,
  • Petra Váňová

摘要

The restoration and reproduction of historical motorcycle components require precise digital reconstruction and thorough material characterization. This study presents the reverse engineering of the engine cylinder from the historic Indian Scout 37 motorcycle, utilizing 3D scanning, CAD modeling, and metallurgical analysis. A high-resolution digital model was generated using structured-light scanning, with geometric corrections applied to account for wear-induced distortions. In parallel, material analysis revealed the cylinder’s composition and manufacturing characteristics. For instance, the material was classified as EN-GJL-HB155 cast iron based on its chemical composition and measured hardness of 167 ± 3 HBW. The collected data served as the basis for comprehensive technical documentation to support accurate reproduction. This research highlights the importance of integrating modern digital techniques and material science to support the preservation and remanufacturing of historic mechanical systems.