A customer approached us with a request for the comprehensive inspection and alignment of a measuring fixture designed for the precise positioning and inspection of parts in series production. Since high precision and the correct geometry of seating and functional surfaces are critical for such fixtures, it was essential to perform detailed 3D measurement and verification of all functional elements. An incorrectly aligned fixture can lead to erroneous measurements, increased scrap rates, and ultimately, a decrease in production quality. The modern Hexagon Romer Absolute Arm was used for the inspection and alignment. Combined with a tactile probing module, it enables high-precision 3D measurement and 3D scanning. This solution is ideal for flexible on-site measurements at the customer's facility or in the workshop, eliminating the need to move large fixtures to a stationary coordinate measuring machine. Using 3D measurement, it was possible to verify the position, flatness, parallelism, and perpendicularity of individual seating surfaces, as well as the profile tolerances of the fixture's functional parts. The measurement process began with a thorough analysis of the technical documentation and required tolerances. This was followed by point-to-point tactile measurement of critical surfaces used for the precise placement of the inspected part. In areas requiring a more complex evaluation of shape, 3D scanning was utilized to provide a dense point cloud and a detailed image of the fixture's actual condition. This combination of 3D scanning and tactile 3D measurement allowed for a highly accurate comparison of the actual state against the nominal values from the CAD model. Based on the measurement results, minor deviations in the alignment of certain seating surfaces were identified. The fixture was subsequently precision-adjusted and re-measured to confirm compliance with all geometric and functional requirements. This iterative process—measurement, adjustment, and re-inspection—ensured that the final state of the fixture fully met the required tolerances and was ready for reliable use in practice. Upon completion of the entire process, a detailed measurement report was generated, containing the full results of the 3D measurement and 3D scanning. The report clearly documents the measured values, deviations from nominal dimensions, and confirmation of conformity with the technical documentation. This output serves not only as proof of correct fixture alignment but also as crucial documentation for internal quality control and auditing purposes. By utilizing modern 3D measurement and 3D scanning technologies, it was possible to achieve high precision, reduce inspection time, and ensure maximum reliability of the measuring fixture. This approach significantly contributes to production process stability, error reduction, and an overall increase in the quality of final products."