How would you like to build a house in just a few days, fabricate any spare part for your car or machine, make a prosthetic leg or even a set of false teeth. You can even produce food without having to work on the farm. Welcome to the world of 3D printing, a.k.a. Additive Manufacturing, which builds things layer by layer from 3-dimensional (3D) model data usually generated by a computer-aided design (CAD) software. The model is sliced into many layers and then printed using a 3D printing machine. The most common 3D printing technology is the Fused Filament Fabrication, which is similar to the …