About this 3D model
Here is a Single Print Treasure Chest that I made to be printed in one print with no support, hinges included. The box is printed like packaging and can then be folded up. It is oriented to be printed on the inside of the box so any details can be added with out support getting in the way. The hinges have a .3mm tolerance in between the parts and require a little bit of force to make movable. This model given here is blank so go crazy and add any details you want on it. I suggest zbrush or meshmixer to add your details but be careful to not dinamesh the hinges or the tolerance will disappear.