[Claudio]

Hello Mark, thank you for the reply...
I followed the book on this (I though bone was the answer), and it's just like you said above, but seems like I'm doing something wrong because by the time I rotate the 3rd bone, bones 1 and 2 stays in place but the entire cove will rotate along bone 3, not just the 3rd part of the cover.

I have this other book and I followed the example from it with a simple cylinder object as an example and it works fine.

Do you think that is something on the book object? or else?

Thanks again.