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3-Newcomer
October 31, 2025
Question

Family Table relation

  • October 31, 2025
  • 2 replies
  • 234 views

How can i use two different tolerance value by using family table relations?

2 replies

KenFarley
21-Topaz II
October 31, 2025

Family tables specify values, not relations.

If you have a dimension that has tolerances specified, you can access those tolerances and add them as a column in the family table. For example, if I make a protrusion, the dimension governing its thickness will be named something like d4. If I change that dimension so it has a plus and minus tolerance, those tolerance values will be named something like tp4 and tm4 for the + and - parts, respectively.

If I go to the family table and Insert-> Column, I can select either of the tolerance values to add to the table.

Something you cannot do, however, is specify different types of tolerances. i.e. use a Symmetric tolerance for one family table instance and Plus-Minus for another instance. 

Catalina
Community Moderator
November 18, 2025

Hi @DK_10088403

I wanted to see if you got the help you needed.

If so, please mark the appropriate reply as the Accepted Solution or please feel free to detail in a reply what has helped you and mark it as the Accepted Solution. It will help other members who may have the same question.

Of course, if you have more to share on your issue, please pursue the conversation.

Thanks,

Catalina | PTC Community Moderator