3D Printing: What It Is and How It Works

 

3D printing (also known as additive manufacturing) builds physical objects layer by layer from a digital 3D model using materials like plastic, metal, resin, or powder It flips traditional manufacturing starting with raw material and removing (subtractive) on its head.

How It Works

- Digital Model – Begin with a CAD or 3D model in formats like STL or OBJ.

- Slicing – Specialized software slices the model into thin layers and converts them into machine instructions (G-code)

- Layer-by-Layer Build – The printer deposits or fuses material—whether filament (FDM), resin (SLA), or powder (SLS)—to recreate each layer and build the part .

Why It Matters

- Complex Geometry Made Easy – Enables intricate designs and internal structures that are hard or impossible with subtractive methods

- Rapid Prototyping & Production – Speeds up development—turn ideas into physical prototypes or short-run parts in days instead of weeks .

- Wide Applications – Used across industries—automotive, aerospace, medical, architecture, consumer goods, even food and bioprinting

Popular Printing Methods

- FDM/FFF – Melts filament through a nozzle; most common for home use.

- SLA/DLP – Uses light to cure liquid resin—delivers smooth, precise results.

- SLS & Powder-based – Sinter powders like nylon or metal using lasers—ideal for strong, complex parts without supports .

Curious how 3D printing could transform your next design or product?

👉 Check out the full article on our website: https://3dmaxter.com/blog/3d-model/what-is-3d-printing/

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