# Methodology for Verification of Geometrically Complex Components Through Reverse Engineering
## 2 Materials and Methods
### Verification of the Welding Fixture Using the Kreon ACE-7-30 Scanner in PolyWorks Inspector
This scanner collects data in the form of 3D point clouds, and its high precision makes it ideal for measuring geometric deviations. 3. Scanner and software integration--once the scanner was set up, it was connected to a computer running PolyWorks Inspector. This software was used to process 3D data and compare them with the CAD model of the fixture. 4. CAD model import--the CAD model of the fixture, created in Creo PTC 11.0.0, was imported into PolyWorks Inspector. This model contained all the geometric tolerance requirements, component positioning data, and dimensional specifications. 5. Data acquisition process--the Kreon ACE-7-30 scanner was placed on the fixture, and 3D point data were collected from all critical areas, including locking points, fastenings, and other key structural details. 6. Sequential scanning procedure--the scanning process was performed in multiple steps, focusing on each section of the fixture to ensure a complete geometric record. Figure 9: Imported 3D model of the fixture with a tolerance color map showing deviations from nominal dimensions and a color scale. Each scanned point was added to the overall point cloud, forming a comprehensive digital representation of the fixture. (g) Deviation analysis in PolyWorks Inspector--the PolyWorks Inspector software calculated deviations between the actual state of the fixture (obtained from the scanner) and the requirements in the CAD model. These deviations were visualized using color-coded maps, highlighting areas that exceeded tolerance limits. (h) Evaluation of measurement results--once the results were displayed in PolyWorks Inspector, areas where deviations occurred were analyzed in detail. These deviations were assessed to determine whether they were within acceptable tolerances or if they could potentially cause problems in serial production. Each deviation was categorized based on its magnitude and severity, allowing for precise identification of which parts of the fixture required adjustments or modifications. This analysis provided a comprehensive overview of the fixture's condition. (i) Final adjustments and reporting--based on the verification data, necessary adjustments to the fixture were made as required. After a successful verification, a detailed report was generated containing all analysis results, detected deviations, implemented modifications, and the final state of the fixture. The comprehensive analysis was crucial in ensuring that the welding fixture met all the initial project requirements and was fully prepared for efficient and seamless integration into serial production. By using the Kreon ACE-7-30 3D scanner and PolyWorks Inspector software, the verification method allowed for a detailed analysis of the fixture's geometry, ensuring that the welding fixture met the precise specifications and tolerances required for optimal performance in a production environment. The final report generated after the verification process served as a detailed documentation of the fixture's condition, changes made, and verification results. This report not only confirmed that the fixture met all design specifications but also provided valuable information for future audits and continuous improvement of the manufacturing process. It demonstrated a commitment to accuracy and quality, which is in line with industry standards, and helped build confidence in the fixture's performance in the production environment. In summary, this step-by-step verification process ensured that the welding fixture was fully optimized and ready for serial production, with the certainty that it would consistently provide the required accuracy and performance within the manufacturing process. The use of advanced 3D scanning added an additional layer of quality assurance, which directly contributed to overall efficiency.