One of the great new features of Creo 3.0 is its advanced support for patterns.
In Creo Parametric 3.0, the geometry pattern capability has been extended to allow users to pattern geometry across an area of topology change. This significantly improves the usage of geometry pattern and significantly improves overall productivity.
In addition, users can now reference pattern features that have been placed on any pattern instance, rather than needing to always place the features on the references of the pattern leader.
Geometry pattern includes two options that will help you create patterns of geometry over variable topology. They include the copy and attach functions.
Copy creates copies of the geometry without trying to attach those copies to the solid. It creates a quilt in each of the pattern instance locations. These quilts are not merged to the existing solid geometry.
Attach is similar to the attach tool in the Creo Flexible Modeling Extension (FMX). It extends or trims the edges of the one-sided surfaces of the geometry to be copied so that they can be merged and solidified with the existing solid geometry.
For more on creating geometry patterns on variable topologies, click on the image below to watch a very brief PTC University Learning Exchange (free registration required):
To learn more about the pattern functionality in Creo, watch this quick video: