3d printing is nothing new bud. It has been around for quite sometime and it was known as Prototyping. Just Google it. Yeah now it's just getting popular because you can buy one these printers and place them in your home. Lots of companies have been using this technology for quite some time. Boeing, car companies (Audi just made a 3d printed car). So yeah it's new to the average joe but it's still nothing new. Give it 50 years or so, that's when I think it will get more popular.