If you’re new to parametric modeling with PTC products, you may not be familiar with trajpar. Derived from the words “trajectory” and “parameter,” this system parameter can help you create alternating, flaring, bowing, or sinudoidal geometry by controlling the shape along its trajectory.
Last year at PTC Live Global, Paul Sagar, director of product management at PTC, demonstrated how to use the Variable Section Sweep with the trajpar parameter to create a heating coil.
In a four-step process, he defined a revolving ellipse. Next, he defined a helical surface to intersect that ellipse. And then, he trimmed the helical surface with the first surface. Finally, he swept one more surface along the trimmed surface edge to create the proper tube diameter. Confused? See step-by-step instructions in Sagar’s demonstration video below:
For more expert-level tips like this one, don’t miss “Tips and Tricks: PTC Creo,” a special session led by PTC product managers at PTC Live Global, this June in Nashville, TN. Join Sagar and other PTC technical managers as they “try to out do each other with their knowledge!”
Paul Sagar has been with PTC for 10 years, first as a product manager and now as director of product management. He is the host of several demo videos on PTC University Learning Exchange and is our go-to expert for explanations of PTC Creo’s newest technologies.
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