This task shows you how to locally create a prismatic machinable feature in a design part. | ||
The SampleMPA.CATPart document should be open. | ||
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Select the Local Feature Recognition icon
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The Local Feature Recognition dialog box appears.
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2. | Select the type of feature to be recognized using the combo (Complex Step, for example). | |
3. | Click the Faces to Process: No selection field,
then in the 3D view locally select one of the contour faces of the complex
step:
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4. | Click Recognize. An information box appears
giving the following information about the recognized feature:
The created feature appears in the Manufacturing View. |
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In the SampleMPA.CAtPart, to create:
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If needed, you can specify a preferred machining direction
for through features by selecting a face, line or an edge. The through features are given a machining axis direction parallel to the selected direction. |
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Unsuccessful Local Feature RecognitionIn case of local feature recognition failure, an appropriate error message is issued. Whenever possible, the elements that caused the failure are highlighted. Some examples are given below. Feature type does not match. You must select at least one face that uniquely belongs to the
feature. Duplicate feature creation. Non-machinable feature due to very small dimension. Non-machinable feature due to invalid face or edge contour. |
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Advanced ParametersThe Advanced tab page of the Local Feature Recognition dialog box contains a number of parameters for specific processing. For more information, please refer to: |
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Tips for Local Creation of Machinable Features with Feature RecognitionIn general, a feature can be recognized by selecting either the bottom face or one or more contour faces. To recognize a hole, you must select all the faces of the hole that will be machined: flank faces and, in case of a blind hole, the bottom face. Never select the top face.
To recognize a feature with fillets, you must select all the fillets to be able to recognize the feature. Note that features surrounded by convex fillets are not considered as prismatic features and are not managed by the feature recognition capability. In all cases, selection of non-adjacent faces will not allow feature recognition. In the image below, selection of all the red faces will not recognize a complex step feature. In the case of intersecting holes, feature recognition will
create as many holes as separate surfaces. |
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