EZ Tolerance Analysis now supports unequally disposed profile tolerances for both ASME and ISO GPS models. The following types of geometrical tolerances are applicable:
- Profile of a surface
- Profile of a line
Unequally disposed profiles can be defined directly from the EZ Tolerance Analysis Stackup user interface or validated as linked annotations from existing geometrical tolerances with defined semantic references. The values associated with unequally disposed profiles are used in stackup analysis calculations and are displayed in the results.
These profile tolerances are represented differently in ASME and ISO standards. In ASME, this specification is indicated by the Ⓤ symbol, while in ISO, it is referred to as Specified Tolerance Zone Offset and denoted by the letters UZ. The table below provides examples of how this specification is applied in ASME and ISO contexts.
In this ASME example, the profile zone has been shifted, so that 0.1 is outside the material and 0.2 is inside the surface.![]() | In this ISO example, the center of the profile zone has been shifted to be 0.15 outside the material of the surface.![]() |
Benefits: This enhancement enables the validation of models with unequally disposed profiles for 1D stackup analysis, thereby improving compliance with ASME and ISO detailing standards.
Creo Parametric 11.0.0.0
User Interface Location:

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