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Selection Rules for "features"

When selecting a "feature" to pattern, e.g. a rib with drafted sides, the Part Design Fundamentals course usually recommends selecting both the base rib feature and the draft feature (from the feature tree).  As a long time Solidworks user, I would normally select only the draft feature, which would contain both features.  In fact, by selecting on the drafted face on screen, the "rib" feature is selected, including the draft and appears to work fine.  The dialog says that I selected only the rib but all copies have draft.  Is there a difference between selecting both the rib and draft features (from the feature tree) and selecting the drafted rib from the screen?

Answers

  • Jake_RosenfeldJake_Rosenfeld Moderator, Onshape Employees, Developers Posts: 1,285
    @r_paul_smith

    By Selecting the "rib" feature with "Apply by instance" turned OFF, you are essentially doing a face pattern of the faces created by that "rib".  Since you have added draft after the fact, the patterned faces will also have that same draft.  If you were to turn "Apply by instance" ON, the rib feature would be regenerated for each pattern instance, yielding ribs with no draft.  In that case, you would have to select the rib and the draft so that the feature would regenerate both of those features for each instance of the pattern.

    Hope this helps.
    Jake Rosenfeld - Modeling Team
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