Hi, I'm trying to model a tensegrity dbar which is a rectangular frame composed of 4 bars and some strings. To model this rectangular frame, I can connect the floor and the 1st bar, the 1st and 2nd bar, the 2nd and 3rd bar, the 3rd and 4th bar with hinges between them. For the connection between the 4th bar and the 1st bar, I know I can use constraints to simulate a hinge, but is this the only way? Is it possible to add a hinge joint between them? Thanks a lot! Ran