A Digital Application for Geometrical Tolerancing Concepts Understanding

The general concept and main capabilities of the application Geometrical Tolerancing that has been consequently developed by the authors for a couple of years to effectively present and disseminate the ISO GPS system rules in industry and technical universities are presented. The application structure is shortly shown and discussed through a few screen shoots. The paper is focused on the approach used to present differences between requirements defined by the position tolerance of the two hole pattern without and with maximum material requirement with respect to the datum system created by three datum planes. The other cases of the two hole pattern tolerancing covered by the application are also briefly discussed. It should be noticed that visualizations of deviation measurements by usage of the various measuring methods starting from classical techniques employing indicators and measuring plate or hard gauges up the modern ones like FMM or CMM are just implemented in the application for selected tolerances.