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SB_66607323-Newcomer
3-Newcomer
Jun 22, 2023 9:52 AM UTC
Solved

Help with Drafts.

When trying to apply draft on surface styled parts, or can say class A surfaces, Creo is not allowing to apply drafts. What could be the reason. Here I am considering plastic parts which have a wall thickness.

I think, drafts can only be applied on surfaces which have 90 deg relationship to the reference plane or surface which we are considering the parting line.

 

 

 

kdirth
kdirthAnswer
21-Topaz I
Jun 22, 2023 12:26 PM UTC

Draft does not work on surfaces that are not "flat" in the draft direction.  Class A surfaces are typically curved or warped in both directions and Creo cannot apply draft to a surface that already has a varying slope in the draft direction..

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4 replies

kdirth
kdirth21-Topaz IAnswer
21-Topaz I
Jun 22, 2023 12:26 PM UTC

Draft does not work on surfaces that are not "flat" in the draft direction.  Class A surfaces are typically curved or warped in both directions and Creo cannot apply draft to a surface that already has a varying slope in the draft direction..

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There is always more to learn.
    SB_66607323-NewcomerAuthor
    3-Newcomer
    Jun 23, 2023 3:19 AM UTC

    Thanks a lot. That was very helpfull.

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    tbraxton
    tbraxton22-Sapphire II
    22-Sapphire II
    Jun 22, 2023 6:46 PM UTC

    Using the draft feature function, you can draft any planar surface, cylinder, tabulated cylinder, cone, or ruled surface, except for those that are perpendicular to the pull direction.

     

    Many styled surface features are not one of the types listed above, so you are not able to use the draft feature. 

    When creating surfaces, you would want to build the draft into the surface features themselves. I would strongly suggest that you define the mold split(s) and reference the required draft pulls when creating any geometry in your model. This is critical on complex geometry that must eject from a mold.

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      SB_66607323-NewcomerAuthor
      3-Newcomer
      Jun 23, 2023 3:20 AM UTC

      Lots of thanks. That was really helpfull.

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