Extra Blogging : In future, how 3D printer will influence to our economy(Han seung gu)

3D printer has very high possesion in global market.
this can make almost all thing including food industry part so on.
So the country that has the resource required to make printer will be grow necessarily.
And,To sell something, we first made and wait untill the customer come.
However 3D printer just makes things when customer need, So this economize surplus resource.