Box contained sphere or other shapes can't be meshed

hi,I don’t know why box contained sphere or other shapes with boolean can’t be meshed in cubit.
Any suggestion please.
https://www.salome-platform.org/forum/forum_10/190136416
https://cubit.sandia.gov/15.6/help_manual/WebHelp/geometry/virtual_geometry/partitioned_geometry/partition_volume.htm
I find the same problem but can’t understand how to do it.

I’m using Coreform Cubit 2021.5. This looks like the same model referenced in the Salome forum. The basic steps are:

  • Use webcut to partition the model with the Delete Tool option on (default).

  • Imprint and merge the model

  • Set sizes

  • Set mesh scheme

  • Mesh

    reset
    bri x 200
    vol 1 move 100 100 100
    sphere radius 30
    vol 2 copy move 40 40 40
    vol 2 move 100 100 100
    webcut Volume 1 tool Body 2
    delete Body 2
    webcut Volume 4 tool Body 3
    delete Body 3
    imprint all
    merge all
    vol 6 size 25
    vol 5 7 size 5
    vol all scheme tetmesh
    mesh vol all
    block 1 vol 5 7
    block 2 vol 6
    export mesh ‘model.e’
    image

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