Extra posting-JI SOOGEUN(In future, how 3D printing is effect to our economy)

3D printing is very economic technology. It is effctive way to make the production. It need little time and effort then make production from existing factory. So, I think if 3D printer is spread wide, it will be a future-leading technology. Also, if 3D printing is spread, sources will be saved. Because not prduct-and-sell way but order-and-product way will be common way.