How does a 3D printer build objects layer by layer?
Print-a-Thing Recipe
How does a 3D printer build objects layer by layer?
You've probably held something made by a 3D printer — a toy, a phone case, maybe even a piece of jewelry. But here's the wild part: that solid object started as nothing but a puddle of melted plastic and a very patient machine that knew exactly where to squeeze one tiny drop at a time.
It starts with a digital blueprint — a 3D model on a computer that describes every curve and corner of the object. The printer's software slices that model into hundreds of paper-thin horizontal layers, like cutting a loaf of bread into perfect slices. Each slice is a flat shape that tells the printer, "Here's what this one layer looks like."
