This application note focuses on modern 3D printing, also known as additive manufacturing, which is making a three-dimensional solid object of virtually any shape from a 3D model or other electronic data source. It discusses the Razor-Razorblade business model which involves selling a main item at a discount just so the complementary (often disposable) secondary goods can be sold at a considerably higher price. This same business model has been successfully used for the traditional printer market, but the model works only when there is a strong IP protection scheme implemented against cloning, counterfeiting, replicating, and imitating disposables. The DS28E15 DeepCover®secure authenticator IC is the right path for selling more 3D printers. Now, here is how we get a 3D printer in every home!