Today, I would like to talk about 3D printer. It prints object of three-dimensional(立体的な). There are 4 technique in it mainly. Stereolithography(光造形法), Fused Deposition Modeling(熱溶解積層法), Selective Laser Sintering(粉末焼結法) and Inkjet(インクジェット法). 3D printer is able to print anything. For example gun, car, food, clothes and medical supplies. (←I explain them in detail.)
By the way, do you know 3doodler? It is 3D pen. It can draw three-dimensional picture. So you are able to draw in the air. This pen is world-first. And it is popular all over the world. It is on sale since 2014 in Japan.
(conclusion→) This is how technology of 3D has been developing. So I think that 3D printer will be popular in Japan. And I think that after this, 3D printer will active participation(活躍する) in medi