Do your tolerances meet ASME standards? Ask Creo 4.0




Geometric Dimensioning and Tolerancing (GD&T) is a symbolic language used to communicate design specifications. GD&T can speed up processes and reduce errors.

A 3D model annotated with GD&T information.

You’ll have fewer prototypes and scrap parts because you’ve told manufacturing just how much a part can deviate from the design before it just won’t work anymore.

However, just like any method of communication, GD&T is only effective if everyone is speaking the same language—or using the same set of standards. It doesn’t work if even a few people aren’t using it correctly.  

GD&T symbols—Do you know what they mean?

Creo takes the guess work out of GD&T. Your organization will communicate with a universal language—a common set of standards. For example, ASME Y14.5-2009.

In Creo, tolerances are automatically checked for compliance with ASME standards. Take a look:

Here’s how to check an annotation for ASME compliance:

  1. From the Annotate tab > click Geometric Tolerance.
  2. Select a surface on the drawing/assembly and place the annotation on your geometry.
  3. Select the appropriate Geometric Characteristic Symbol.
  4. Type a tolerance value.
  5. Click Symbols and select a symbol that applies to the tolerance.

If the tolerance/symbol violates ASME standards, you’ll see a warning message. Like this one:

 

Learn More About GD&T

Are you a PTC Support customer? You can learn more about how to create a geometric tolerance in Creo Parametric from this Support Knowledge Base article. These articles are one of the many benefits available to PTC Support customers.

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