This task shows you how to use the Lip command to create lips on bodies that were divided. There are three methods: | |||||||||||||||||||||
Open the Lip.CATPart document. | |||||||||||||||||||||
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By default, the Protected volume option is not active. This protects the volume of the lip area by preventing any additional material created by other features to be added to the lip.
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The Lip feature has three profile control options. It gives the users more flexibility when defining the geometry of the lip feature.
When creating a lip defined with an open path, the user often extends the end curves of the path in order to get the correct geometry. This happens when the path is not planar, or the part geometry is not perpendicular to the end of the path. The Open Path Extension allows the user to simply enter a value, and we would automatically add an extension to the open end of the path.
This method requires one additional parameter, Inside Angle or Outside Angle. It sweeps the automatically generated profiles along the internal path, this would guarantee the connectivity between faces A and B (see figure below). Width would be the thickness of the internal lip at the intersection with the parting element. This is guaranteed to be constant. For non planar parting elements the resulting width of the external lip may have slight variations. |
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When you create a lip feature on the
Added feature like below, only the upper side of the lip is
generated and the lower side of the lip does not get
generated. It is because the lip is not a protected feature, and the
lip contribution that forms the cutaway from the lower lip is of type "core".
Since the divide half type is "added", it has higher priority and fills up the
space where the lower lip cutaway is supposed to be.
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