[sajjad7]

Hi,
I'm learning hypermesh. I'm trying to tetramesh a solid with hypermesh. the solid (it must be!) has no free edges. but the program detects it as a surface!. I tried autocleanup (maybe my parameters were wrong) and find free edges but no hope. I'm just curious what is wrong with the geometry? (or did I make a big mistake?)
I would be pleased if someone can help me.
the solid with all the shared edges is attached.

Edit:
In find edges, the program keep saying that "Elements have not been selected" dispite I choose the proper component.