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A
aruzgys8-Gravel
8-Gravel
November 14, 2025
Question

creating predefined hole pattern features

  • November 14, 2025
  • 1 reply
  • 576 views

Hi,

Something im not sure if its even possible, looking to have a set of predefined hole patterns to replicate SAE flange tapping details on manifolds.

Currently we just use a chart based on ISO6162-1 & ISO6162-2

Would be handy to have this a feature where the hole size, drilling depth, & tapping depth, as well as sketch pattern width & length are predefined.

 

 

1 reply

tbraxton
22-Sapphire II
tbraxton22-Sapphire II
22-Sapphire II
November 14, 2025

You can use user defined features to implement this. User Defined Features (UDFs) are groups of features stored in a file that allow users to reuse geometry and modeling features in new parts and assemblies, saving time and effort in repetitive design tasks.

 

About User-Defined Features

 

Creo Parametric - User Defined Features (UDFs)

A
aruzgys8-GravelAuthor
8-Gravel
November 14, 2025

I had tried that, however im not sure how to change the tapped hole size, its not something i seem to be able to include in the family table.

 

Its a pretty basic 4 hole pattern, with m8, m10, m12 & m16 fasteners, Any tips?

tbraxton
22-Sapphire II
tbraxton22-Sapphire II
22-Sapphire II
November 14, 2025

Is it a requirement that you use a family table to drive all versions of the UDF needed in this context? What advantage do you see in using a family table in this scenario? While possible, it may likely be faster for you to create a nominal size 13 (m8) and create and test the UDF to confirm it functions as needed. Once this is working you can just use the save as to create a copy and modify the model to comply with another nominal size as required. This will result in a unique UDF for each nominal size of flange which can be placed into a new design model.

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