I am using gazebo 1.5 compiled from source, in the model attached, there are two boxes linked by a y axis revolute joint.
If I remove the joint, the boxes collide and you can see one on top of another.
With joint there is an impression of one inside another.
To reproduce: I just started gazebo, click in the insert tab and add the model.
I am not sure if it is a strange behaviour, if it is restricted to y axis revolute joints, or just an error in the model.
Thank you in advance.