How to hinge an object and apply physics? I'm trying to hinge a modified torus to a hole made to a modified cube.

Torus: physics: rigid body | dynamic ON | Collisions shape: Mesh

Cube: physics: rigid body | dynamic OFF | Collisions shape: Mesh

But during simulation the torus simply flies off, instead of hanging.
[Model screenshot attached]
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Blender version: 2.73a
Your described set up works fine.




  The Rigid Body World
  
  
  
  The dynamic chain element
  
  
  The static collision object
  


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Double check your settings.
Create a duplicate of your file and delete everything except the problem area.
Create the scene from scratch and append it to your file.
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