Editing a feature causes all subsequent features to regenerate.It’s easy to unintentionally create relationships (Booby traps!). The problem with parametric modelling is… Building a model that can change in a predictable fashion takes a little thought and some planning. This change over time is referred to as ‘Design Intent’. We model in the usual three dimensions, and we must also consider Time, or the way our model might change over time. The problem with parametric modelling, is that we must model in 4 dimensions. Or building families of components that are very similar (copy and paste, adjust a parameter, job done). This is awesome for building models that need to be adjusted in a predictable fashion (configurable designs). Models that can easily change by adjusting the value of a parameter. The part must be easy to update (this is the tricky part).Īutodesk Inventor allows us to build parametric models.The geometry must be correct (that’s a given).I’ve given this a lot of thought – and I can only come up with two criteria. So, how can we quantify a ‘well modelled’ part? We can use it for lots of different tasks, and in lots of different ways – all of them correct. Of course – there is no ‘Right’ way to use Autodesk Inventor. When I’m teaching Inventor I’m often asked: I know that this has happened to you – it’s happened to me too. Why is parametric modelling so hard? One minute you have a perfectly good model, looking fine, the next minute EXPLOSION!
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