This paper shows measuring workflow for casted bearing cover using manual and automated optical measuring systems ATOS. Theoretical part of this paper shows basic principles of optical scanner while practical part establishes the rules to be followed during the scanning, scanning process and parametric inspection of the results based on mechanical plan. By displaying manual scanning, the idea is to implement reader through the calibration of ATOS Core optical scanner, all the way to the final results in the form of a polygonized network of points in .stl format. There are rules to be followed so that the measurement result is precise and accurate. The manual scanning procedure is an introduction to the automated process and shows the knowledge base used in automation of the measuring process. The automated scanning procedure is displayed on the ATOS ScanBox 4105 measuring cell. For the automated measurements, a casted bearing cover is placed in the measuring cell on fixture located on the rotation table in measuring cell. The fixture is made out with a combination of standardized aluminum profiles and 3D printed parts that geometrically fit casted bearing cover. Furthermore, a manual and automated way of generating measurement positions is shown. The offline programming, simulation of measurement, assembly of the fixture, measurements and parametric evaluation of scanned results in the virtual measuring room is displayed through automation of measuring process.