About Geometric Tolerances Checker Limitations

Only the following GD&T are taken into account.

Tolerance TypeTolerance NameApplying to
formflatnessplanar surface
formcylindricitycylindrical surface
formcircularitycircular line
formstraightnesscylindrical axis
formstraightnesscylindrical generatrix
formsurface profilesurface
orientation parallelismsurface/reference plane
orientationperpendicularitysurface/reference plane
orientationangularitysurface/reference plane
dimensionlinearso called planar surface
dimensionangularso called planar surface
dimensionlinearcylinder diameter
dimensionlinearcylinder/cylinder distance (interaxial)
orientationperpendicularitycylinder/plane
positioncoaxialitycylinder/cylinder

Notes:
  • Reference planes are presently computed as least squares mean planes. True reference planes computation based on infinite norm is not yet supported.
  • Semantic dimensions are not presently supported. This applies in particular to linear dimensions.