How does the AGV carrying payloads of huge heights as compared to it's size turn without turning the payload? Even if the body is attached to a center bearing, the bearing is very smooth then how come these bots are able to rotate so precisely?
2 Answers
A platten or load table driven by hydraulics or an electric motor or large stepper motor will rotate the load to counter the movement of the driving unit.
Some use omni wheels, others use mecanum wheels. https://www.superdroidrobots.com/shop/category.aspx/robot-kits-omni-wheels/61/
It can also just sit the stack down on it's legs when turning if it needs to.