Naked (help)

 From:  PaQ
6904.1 
Hello guys,

I'm trying to finish a model, and I'm facing some naked edges troubles.

The 2 objects (in attachment) are supposed to be solid, but I have lots of little naked edge (I cant even see where they are).

I'm not sure if there is a way to resolve it, except maybe rebuilding the model from scratch.

Isn't it something to do with tolerance ?

EDITED: 3 Dec 2015 by PAQ