This question was originally asked by a former student who attend the Creo Parametric Cable and Harness Design course and was answered by the class instructor.
What is the best method of creating a flat pattern for a complex harness? Even when I try manual, there is still a branch that won’t let me select it for a start point.
A possible solution to creating your flat harness linked to a complex assembly is to use a sub-harness.
In your harness part, you can create a sub-harness or sub-harnesses. A sub-harness is a portion of a harness (and not a separate part file); It is visible in the model tree in the harness Footer area. Using this you can possibly break up the wire features in “groups” that can be managed a little easier in the flattened harness model.
You can use all of the entities available for harnesses when working with sub-harnesses, but Creo allows you to also work with sub-harnesses separately in Harness Manufacturing mode.
(SIDENOTE: Harness-MFG module is used to create flattened harnesses from 3D harness parts).
To set the default sub-harness, use the MODIFY HARNESS icon located in the Harness group in Cabling mode. Then select the harness that includes the sub-harness you wish to set as the default. You can then click on Set Default and select the desired sub-harness.
More information about this topic can be found in our Creo Parametric Cable and Harness Design course.
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