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Mathpp1-Visitor
1-Visitor
Dec 16, 2022 1:24 PM UTC
Question

Export problem, broken round surfaces

We are trying to send the project to some of our suppliers so that they can manufacture it based on 3D. Currently it receives the models in the STP extension, but when receiving it, it complains about surfaces that are divided.

 

Below is how the part looks in CREO.

Mathpp_0-1671196676883.png

 

Below is how the supplier receives the part after importing it, it uses Solidworks.

Mathpp_1-1671196676898.png

 

the files are exported as shown below:

 

Mathpp_2-1671196932105.png

 

Is this a configuration of CREO itself or is there a way to remove it?

7 replies

tbraxton
tbraxton22-Sapphire II
22-Sapphire II
Dec 16, 2022 1:41 PM UTC

Creo parametric splits circles in half, this is how circles and cylinders are defined in the geometry kernel and there is no way to avoid this inside Creo. Using another software, you may be able to join them from the STEP data.

 

A split circle or cylinder in a STEP should not prevent the use of the STEP data to generate tool paths (G-code etc). I send Creo exports that are used to directly generate tool paths often and the split circles have never been an issue with any machine shop I have worked with.

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    Mathpp1-VisitorAuthor
    1-Visitor
    Dec 16, 2022 1:46 PM UTC

    The problem is when he flattens the piece to a Dxf for example, if you look, when he performs this type of import, part of the piece disappears.

     

    Mathpp_0-1671198357985.png

     

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    tbraxton
    tbraxton22-Sapphire II
    22-Sapphire II
    Dec 16, 2022 5:42 PM UTC

    If they need DXF as an input, make a 2d drawing of your part in Creo and export the dwg as DXF. Using this approach, you should be able to export a full circle through the dxf interface.

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    Patriot_1776
    Patriot_177622-Sapphire II
    22-Sapphire II
    Dec 17, 2022 5:16 AM UTC

    This is a BUG that's been in Creo since the beginning, and they REFUSE to fix it.  It's caused me and countless others all kinds of serious trouble since the beginning.  Best of luck with the Pro/WORKAROUND and Pro/FANITY modules... (sorry, Olde Pro/E joke)...

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