Boundary blend quilt topology changing with accuracy of model
Creo Parametric 10.0
The legacy model is in units of inches with relative accuracy; the new model is mm with absolute accuracy. The accuracies of the models are not “matched” the absolute accuracy of the new model tighter than the legacy model relative value.
I have a legacy model that was created using relative accuracy to develop a surface using a boundary blend feature. In order to match this geometry in a new design I have created this same boundary blend in Creo 10 but the topology on the interior of the quilts is not congruent when comparing models. In the new model I used copy->paste special to copy from the legacy model to the new model all of the curves used to create the boundary blend surface feature.
Does anyone have any insight into this behavior? I have double checked that the boundary blend has been replicated using the same selections/constraints as the legacy model. All boundaries are free and there is no control points defined in the boundary blends. The chains used in the boundary blend are mapped accurately to the reference (ie. order of selection of curves).
In the image below the legacy quilt is orange and the new one is purple. It is visible that the topology within the boundaries of the quilt is not congruent.


