3D Printing

3D printing, formally known as Additive Manufacturing, is the process of creating a physical object from a digital model. Unlike traditional manufacturing (subtractive manufacturing), which cuts away material from a solid block (like carving wood or CNC machining), 3D printing builds the object layer by layer.

Imagine slicing a loaf of bread horizontally into hundreds of paper-thin slices. If you were to stack those slices back up one by one, you would recreate the loaf. 3D printing works on this exact principle: the printer reads a digital design file and lays down material in thin cross-sections, stacking them until the full 3D object is formed.

While there are many technologies used to achieve this, the two most common methods for hobbyists and professionals are FDM and SLA.

Printing technologies