Setting a new axis/pivot
I want to set an axis for a simple object to turn on. The object is a small flattened cylinder, with closed ends, with a narrow rod welded to one edge as indicated below. When I set the axis to be the centre of the small flattened cylinder and attempt to rotate the object around the horizontal (side to side) axis only the top surface and associated points rotate, leaving everything else stationary.
Grateful if someone can explain where I am going wrong.