3D meshing of a screw

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hello,

 

I am trying to 3D mesh this model with solid mapping.

I have already tried 'toggle edges' and 'trim with surf'. I have also tried to divide the circular plate (top plate) into small pieces by connecting the nodes, however, I was not able to split any surfaces. 

 

I am not exactly sure which edges I should toggle and how I should get rid of the narrow surfaces between the rectangular (side) surfaces, to make the model mappable?

 

Thank you,

 

Muge Candogan

 

<?xml version="1.0" encoding="UTF-8"?>1.JPG

<?xml version="1.0" encoding="UTF-8"?>3.JPG

<?xml version="1.0" encoding="UTF-8"?>4.JPG

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Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited March 2017

    you want only hex element or tetra is also fine?If possible please share hm file for same.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    Hello Rahul,

     

    Thank you very much for your quick response.

     

    I am trying to create hex elements with solid mapping. Since the geometry is complex, would there be an easier way to mesh that you recommend?

    I am also sharing the hm. file to your dropbox.

     

    Thank you very much,

     

    Muge Candogan 

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited March 2017

    thanks for sharing files.Hex mesh with solidmap is all about how you are splitting model to get mappable volume.to me also it seems complex.PFA screenshot for same.Will check & let you know my finding on this model.

    <?xml version="1.0" encoding="UTF-8"?>complexity.JPG

  • tinh
    tinh Altair Community Member
    edited March 2017

    Hi,

    could you attach the file in a post? we can give a try.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2020

    Thank you so much for your responses. I am attaching the file.

     

    Is there an easier way that you would recommend, such as tetra mesh? If so how should I proceed with it? 

     

    Thank you,

     

    Muge Candogan

     

    Unable to find an attachment - read this blog

  • tinh
    tinh Altair Community Member
    edited March 2017

    hi, tetra is always easier than hexa, if you don't have any specific reason, use tetra model

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    I also tried volume tetra but it did not work either, could it be because I need to edit the geometry? 

     

    Thanks,

     

    Muge

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited March 2017

    Yeah, Tetra mesh is NOT BAD when you known how to use it !!!

    If you want always HEXA meshing in this case, I would like to say 'Good luck!' :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20' />

    <?xml version="1.0" encoding="UTF-8"?>model_screw.png

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    I am trying tetra meshing, however, only the top part can be meshed, I can't get any results for the rest of the geometry. 

     

    <?xml version="1.0" encoding="UTF-8"?>Capture.JPG

    <?xml version="1.0" encoding="UTF-8"?>Capture2.JPG

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited March 2017

    You mesh size is TOO BIG comparing to your geometry. Try with smaller value.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    You mesh size is TOO BIG comparing to your geometry. Try with smaller value.

    That solved the problem! Thank you so much!!

     

     

    <?xml version="1.0" encoding="UTF-8"?>Capturefinal.JPG

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited March 2017

    Even with Tetra meshing, you can not got the best mesh (good quality with reasonable CPU) with ONE CLICK :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20' />

    A good mesh needs a hard work.