While there has been quite a bit of discussion recently about our synchronous technology <\/A>in the history-free modeling mode, I\u2019d like to share how it can also be used in the history-based modeling mode in NX\u2019s Design Freedom <\/A>tool set.
If you\u2019re a CAD user, you\u2019re probably familiar with history-based modeling. You create a model from a base feature by adding and subtracting other features. Features are added in a linear fashion and stored in a history tree (sort of like a recipe). Modifying the model usually requires a fairly detailed understanding of how the model was built.
In this video, you need to change this eight-year-old fully parametric part, and its associated drawings. The history tree gives you an understanding of how the part was originally built. Your task is to modify a pocket and maintain the model history. This may seem like a simple task, just adding two dimensions. However, when the original designer created the model, he didn\u2019t anticipate this change and there is a feature in the models history that interferes with your change. So how do you quickly make the change, and keep the model\u2019s history intact?