I'd like to see more mid-air drawing in action. The video only shows how to make a spiral, a cube and some finishing touch on the dinosaur. Though they are sho

I'd like to see more mid-air drawing in action. The video only shows how to make a spiral, a cube and some finishing touch on the dinosaur. Though they are showing photos of objects that must have been created this way, it's not clear how well this goes in practice. It seems the Eiffel Tower is made by drawing over a CAD printout and welding the pieces together.