transform surfaces into solid

[Flavia88]

Hello, I hope someone can help me...I imported from autocad to catia v5 the design of a solid (a small stud-shaped prosthesis), I would like to know the mass properties (baricentre, mass, moments of inertia) having set the density of the material with which I want to realize it. I think, however, that the solid is thought empty by catia (it is only a matter of surfaces that delimit an empty space), is there a way to fill it? I do not know if I have been clear, perhaps not too much, in case I can attach the model I speak to you ;-)

Thank you in advance!

 

[dandao]

hi, first you have to join all surfaces with the command join in the surface module (photo join) then in part design click on close a surface(photo close)
n.b. be careful when you join the surfaces these must be closed (maybe it changes the parameters by decreasing tolerances)
if you have problems post the file