On the Association of Datums and Measurements Using Conventional Measuring Devices - Topics Within the GPS Toolbox Project

This paper presents the challenges encountered in elaborating two learning modules for the Erasmus+ project 2015-1-PL01-KA202-016875N “GEOMETRICAL PRODUCT SPECIFICATION (GPS) AND VERIFICATION AS TOOLBOX TO MEET UP-TO-DATE TECHNICAL REQUIREMENTS”. The ISO GPS standards define the language that allows expressing all requirements for the geometry of a product considering the current possibilities of measurement. GPS specifications are continuously growing, and many additional tools appeared, especially new, so-called modifiers. The authors of this paper developed these courses allowing students to gain enough knowledge on subjects like metrology, measurements, design and technical drawings. The learning module 8 (first topic) includes subchapters that present the symbols, datum indications, figures and examples of 2D and 3D drawing indications of datums (datum feature indicators and identifiers, datum targets, specification of datums and datum systems) according to the latest versions of ISO 5459 and ISO 1101. Learning module 23 (second topic) provides information for reading the indications of three different types of conventional instruments (callipers, micrometers, dial gauges) as well as for choosing the right instrument for the required measurement.