![]() ![]() In SOLIDWORKS 2021, there is now a quick and easy check to see if your models have circular references. But what if you didn’t use just one part to drive all the other parts? What if some parts have these circular references? But Top Down Modelling isn’t the problem – in fact Top Down Modelling is a great way to use SOLIDWORKS, and the best practice is to use one part to drive all others, a methodology called “skeleton modeling”. This phenomenon can happen when using “Top Down Modelling” which means parts are designed using the geometry of other parts, to ensure fit. ![]() ![]() A circular reference happens when the dimensions or relations in a part reference another part, and that second part also references the first part. Have you ever rebuilt a model repeatedly and it still doesn’t update properly? Or rebuilds alternate between different results? Or the performance if slow? If so, it might have a circular reference.
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