Inspect GD&T tolerances

Inspect GD&T tolerances


Geometric Dimensioning and Tolerancing (GD&T) in GOM Inspect Suite

What are GD&T tolerances?

GD&T tolerances allow for determining and assessing geometrical deviations of parts. They describe the maximum permissible deviations from the nominal state of a part. If GD&T tolerances are exceeded, the function, accuracy of fit or form of the part is not fulfilled. The tolerances can be used to determine whether a bore hole is manufactured to fit exactly, whether it has the correct direction or whether existing form errors are within the permissible limits, for example. GD&T tolerances are used throughout all steps of the process chain, such as design, production and quality control.

Possible causes for GD&T deviations are, for example:

  • Deformation during processing
  • Wear and tear of the tool
  • Machine vibration
  • Temperature fluctuations during processing

GD&T Functions in GOM Inspect Suite

While GD&T tolerances are used for specification in design, they help the metrologist to verify a part. The basic prerequisite for efficient evaluation is full-field measuring data generated by optical measurement technology. GOM Inspect Suite includes several GD&T functions for a comprehensive analysis of dimensions, form and position by means of datum systems, fitting elements and tolerances. The parametric design of the GOM software additionally supports and facilitates GD&T analyses. For measuring and analyzing the individual elements, this means that every element only has to be constructed once and can then be used as a reference. The respective computation method is set automatically.

GD&T Functions in GOM Inspect Suite

Your advantages

Visualization of labels conforming to ISO standards

GOM Inspect Suite enables you to visualize GD&T tolerances in accordance with the ISO standard.

This allows you to add results to a visualization that is very similar to the technical drawing or CAD data.

Detect errors in time

GOM Inspect Suite provides you with a project guide that guides you through your project.

This allows you to detect calculation errors in time. The software also suggests suitable solutions.

Free Trial

Convince yourself of the advantages of the Professional Module of GOM Inspect Suite with the trial version. Over 90 percent of the users of the GOM Inspect Suite Trial found the introduction to the software self-explanatory. Try it out! Free of charge - 30 days - No contractual obligation


GD&T – With GOM to GPS

Would you like to learn more about GD&T tolerances? Then we recommend our expert training courses.

Find out more