Sometimes, we want to keep 2 bodies in separate parts but having them with the same face mesh at the interface. One way to achieve this is as following : – create a multi-body part with the 2 bodies A and B – create a copy of that part so that the geometry includes 2 different parts, each having the 2 bodies included – mesh the 2 parts, this will results in a conformal mesh between A and B for each part – finally suppress the body B of the first part, and the body A of the second part – the resulting mesh includes 2 separate parts having the same face mesh at the interface