Make a Spherical Shell from Sphere Primitive

- October 28, 2023 at 5:37 pm
  
  Jacob Ellis
  Subscriber
  
  Is there an easy way to make a spherical shell from a sphere primitive (3D volume)? The Detach option is greyed out so I can extract the surface like I could, say, a cube.
- October 28, 2023 at 6:58 pm
  
  peteroznewman
  Subscriber
  
  In SpaceClaim, you would select the face and type Ctrl-C, Ctrl-V to copy the face and paste a surface. Then you could delete the solid.
  - October 28, 2023 at 7:06 pm
    
    Jacob Ellis
    Subscriber
    
    Hi Peter. Not for a closed surface like a sphere. It simply pastes another 3D body even if you only have 1 Face selected. I tried in both Spaceclaim and Discovery.
- October 28, 2023 at 7:17 pm
  
  peteroznewman
  Subscriber
  
  I see you are correct. A workaround is to create a plane to split the sphere into two hemispheres, then Detach All will work and you will end up with 2 domes and two circular flats. Delete the circular flats then use the Share button on the Workbench tab. Mechanical will mesh the spherical surface without an issue.
- October 28, 2023 at 7:22 pm
  
  Jacob Ellis
  Subscriber
  
  True. Thanks for the workaround. Share Topology would work. I guess there is a deep reason in the Geometry algorithms (that I don't understand) why closed surfaces can't exist without automatically converting to a 3D Solid. Otherwise, it's a bit annoying that you need to bring in a multi-body part to the solver for this to work. But tolerable. Thanks and have a great weekend.

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