I have the inner and outer walls of a bladder that I have imported as a IGES file. I have tried using intersect tool however I did not have success with it.
If you attach the IGES file someone could take a look at it and help.
Or nice pictures
You could subtract the inner surface form outer body, depending on how the file is.
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I can send the IGES files if anyone would be willing to look at them. Just send my your email and I can share them with you using goggle drive.
I would consider pictures of what you have tried first and what the geometry looks like as that may be all that is needed to provide a path to a solution.
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