How to bend rigid&nonrigid together

I have 3D normal spine model(STL files) and would like to bend it like ‘S’ shape. So I plan to set vertebraes in rigid bodies and intervertebraes in non-rigid bodies and bend it. How to set them in rigid and non-rigid before bend? Can I bend both of them together in same time?

Hi Tungting - you’ll need two bend operations - set up some reference geometry if need be to duplicate the action exactly.