I am trying to simulate this hinge inside this model of bottle. But when I hit play button on animation it acts weirdly and is pushed out of the bottle. I want the separation to swing down inside the bottle. How can I fix this.
PS: The mechanism and hinge is working fine when I drag the whole hinge system outside the bottle into open space but not working inside the bottle like showed in the wireframe view above.
My end goal is to make bridge opening in the bottle that is two separate half semicircles which will be opened when the fluid from the bottom chamber of the bottle will be pushed upward and will open the bridge. So that fluid will basically apply the force on the two bridge gates or flaps and it will open them in upward direction inside the bottle (/ \ like this in shape). And then then both fluids in the top and bottom will mix together (say lemon juice in bottom and water in top). And yes, I want the gates/flaps to collide with the bottle inside when the bottom chamber water will be pushed upwards when a force will be applied on the bottom base of bottle.