Hello,

I have 2 parts, Skull + brain and obviousely the brain is inside the skull but, since the brain is smaller than the skull and has a different shape there is an empty space between them . what i want to know is if there is a way to create a 3rd part that fills the empty space between the brain and the skull because I need to use these parts in ANSYS and they have to be in contact with each other . and if thats not possible, please  let me know if there are other options for me to create contact surfaces between these two parts.

One more thing is that if I get rid of the brain, is it poossible to  fill the empty space inside the skull and create it as a new part so that i can use it as the brain?

please explain these in delails . thanks

Thanks