I Choose this topic about the history of the impression 3d.

In the 1980s, equipment and materials for the manufacture of early additives were developed.3 In 1981, Hideo Kodama of the Municipal Institute of Industrial Research in Nagoya invented two AM methods of making a three-dimensional plastic model with a photo- That the area of ​​exposure to UV rays was controlled by a mask pattern or scanning fiber transmitter.

So, i choose this topic because i was interesant to know the origin of the new technology of 3d.
In the world are a lot of topics that you can find.

The first building made up og impression 3D.The printer that has been used in the project is a machine about six meters high; 36.5 in length and 12.20 in width. Mohammed Gergawi, Minister of Cabinet Affairs of the United Arab Emirat.

The facilities, which have invested 125,000 euros, occupy 250 square meters and are located in the center of one of the seven emirates that make up the United Arab Emirates.

I choose this topic because i was surprised cause it was my first time that i saw a impression 3d building.And i choose it because it was interesant.