DOMINO STL Training

I have a couple of questions about the STL inputs considerations for DOMINO:

  1. Should the geometry training dataset be based on the original STL CAD data (coarse grid size), or should be using the STL from CFD surface mesh (fine grid size ~5M)?
  2. I would like to train DOMINO including rotating wheel. Does the rotating wheel need to be separated from the rest of the parts in STL file ? Can you provide any guideline on this?