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Mixed modeling not possible with an education license?

I import several meshes in a partstudio. However I use both .obj files and .stl files it doesn't result in mixed modeling. I can open the partstudios with the imported meshes. I can delete som parts, but not add some parts, or use boolean as seen in a Youtube movie. What's going wrong or isn't it not possible with an education license?

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Answers

  • Matt_Shields
    Matt_Shields Member, Onshape Employees Posts: 979 EDU

    Mixed modeling works on the Educator Plan. Perhaps share your document and we can see what's going wrong.

  • MDesign
    MDesign Member Posts: 1,458 PRO

    itโ€™s likely your imports are not water tight meshes.

  • Matt_Shields
    Matt_Shields Member, Onshape Employees Posts: 979 EDU

    Good point. If your mesh isn't water tight, i.e. it does not enclose a solid volume, then it is just a collection of surfaces and it won't behave like a solid and won't respond to solid modeling techniques.

  • hans_van_de_burgt
    hans_van_de_burgt Member Posts: 17 EDU

    Here's my project. I made it a public one.

    Tree2D-3D-mesh | Tree skelet

    It's indeed with several problems, and not water tight. How can I solve that?

    Gr, Hans

  • MDesign
    MDesign Member Posts: 1,458 PRO

    you could do a series of splits/encloses to narrow down the problem area but with a tree that could be a nightmare.

  • Matt_Shields
    Matt_Shields Member, Onshape Employees Posts: 979 EDU

    Yeah, I was able to enclose a few sections, but that thing is going to be a nightmare.

    image.png
  • Derek_Van_Allen_BD
    Derek_Van_Allen_BD Member Posts: 1,063 PRO

    Not to advertise an Autodesk product on a PTC forum, but Meshmixer has tools to find holes in meshes and close them up. Windows 3d viewer has some too but with less control.

  • MDesign
    MDesign Member Posts: 1,458 PRO

    I checked it. there are no holes. not sure what the issue is. I had another STL last night that was acting the same way. no holes but would not import solid. had to remesh the problem area to get it to work.

  • Matt_Shields
    Matt_Shields Member, Onshape Employees Posts: 979 EDU

    No holes, but lots of non-manifold geometry.

    2025-10-15_15-10-23.gif
  • MDesign
    MDesign Member Posts: 1,458 PRO

    Ah good catch Matt. That makes sense why it won't work then.

  • hans_van_de_burgt
    hans_van_de_burgt Member Posts: 17 EDU

    I worked out a new object in my Public document generated by Vizcom. This mesh is water tight imported. I changed it by adding a solid, and by deleting that solid resulting in a hole in the mesh. Problem now was, that the generated mesh itself had some faults. The woman figure missed one leg, and the suitcase is too long. The choice of the program to convert a 2D picture to a 3D mesh is therfore important. Who had suggestions? And are they for free?

  • MDesign
    MDesign Member Posts: 1,458 PRO

    You generated those with AI? Interesting.