Could you make any changes to make your crane stronger?

What parts of the crane stop it from picking up much heavier objects? Is the handle too difficult to turn if the object is heavy? If so, how could you make it easier to turn? Does the crane tip over if the object it's lifting is too heavy? Does the crane need a heavier or a wider base? Is the thread strong enough?

Think about all the ways you could make your crane pick up heavier objects. Then try to improve your design. What's the heaviest object you can get the crane can pick up?

Now have fun experimenting as a crane driver!