Once an Inventor user creates the first extrusion, they’d probably say “Hey, this is a lot like inventor !!!”.
Various dimensions can be mapped to model parameters, that can be affected in the Civil 3D application through tables in the structure properties. It uses 2D planes and modeling features such as transitions, paths (lofting will make sense to some of you), extrusions, constraints, and Boolean Add/Subtract. This relates to Storm and Sanitary sewer models, but some people have pushed the limit and evaluated their water utilities, modeling their valves as well. The part modeler is a 3Dimentional parametric modeler designed to create and accurately convey solid structures and pipes for use in pipe networks. Just take an hour (wink wink) and build the part so that the plan can be conveyed accurately in a complete form.
With part builder, it doesn’t have to be that way.
The tolerances are a bit tight, and simply using something styled in 2D is leaving a lot of frustration and insecurity (I bet you rerun the same calcs 6 times of more before the project is complete, JUST so you can sleep at night). Let’s say you need a custom headwall manufactured to help at an odd bridge embankment, or a weir storm structure with an odd inlet. Pipe conflicts can be seen and evaluated easily…….IF the structures and pips are accurate. Eventually, everyone would use styled NULL structures for everything, reducing the effectiveness of Civil 3D as a 3 dimensional tool (You know, the object viewer is not just a toy). We would be stuck with the same old OEM structures, and as new structures come out, they would not be accessible. Without the app, modified structures would be hopeless. Well, to quote one of my party chiefs, “To have and not need it better than to need and not have” (His motto was to carry everything in the truck…for ME to carry everything). So why have a parametric modeling app in the middle of Civil 3D? Civil personnel are not modelers, at least not until now. The road through Civil 3D is long and bumpy because it is a reactive dependent model in nature, not because the software is difficult. The main reason is that Civil personnel are not modelers.
Part Builder is a functional parametric modeler that 90% of the industry steers clear of.
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