For a number of years, 3D engineers have offered a service whereby the client can have a 3D model of his vehicle created in order to help ensure the shape fulfils his requirements.
Examples of models created in the past are shown below, along with a short video showing the process in action.
The video above shows the 3D printer’s printing head moving across two square containers of material. As it passes the first container it heats up certain areas to create a layer of the solid model and then it continues onwards over the second container. On its return journey the first container is lowered a fraction as the printing head drags material over it that it has gathered from the second container. Repeat hundreds of times and you have a completed model!