Want to thinken a boats surface

[thomasphilippens]

Hi everybody!

Can somebody help me thicken a underwater surface of my 3d boat? With this thickness i cannot print the boat in my 3d printer, but inventor won't let me thicken this surface.

I hope somebody can!

Thank you! 

[AlexFielder]

I'm not sure what the issue is, there appear to be a couple of features which have "Warning" triangles on them:

Other than that, I'm not sure what is not working about this file? Granted, there are far too many solid bodies (IMHO), but I guess that's the nature of the beast when working with waterborne craft such as this?