What Is 3D Printing? A Complete Beginner’s Guide

3D printing (also called additive manufacturing) is a technology that builds a physical object directly from a digital model by adding material layer by layer. Unlike traditional manufacturing, where we cut or remove material from a block, here the object is “grown” from the bottom up – using only as much material as needed. This seemingly simple difference unlocks possibilities that conventional methods cannot achieve.

How 3D printing works

The whole process runs through three clear steps, regardless of the technology:

1. Digital model. It starts with a 3D model – made in CAD software or downloaded ready. The file is usually in STL or STEP format.
2. Slicing. Special software (a slicer) splits the model into hundreds of thin horizontal layers and generates the printer’s instructions – path, temperature, speed.
3. Layer-by-layer printing. The printer deposits or cures material layer upon layer until the object is fully formed.

The result is a physical part that existed only as a file hours earlier. It is exactly this speed – from idea to object in a single day – that makes the technology so powerful.

The main 3D printing technologies

“3D printing” is not one technology but a whole family. Here are the most common:

Each technology has strengths and weaknesses. A quick comparison and a selection wizard are in the tools, and the full catalogs are in the printer and material libraries.

Materials for 3D printing

Choosing a material matters just as much as the technology. In short:

• PLA – the easiest filament for beginners; for models and prototypes.
• PETG, ABS, ASA – tougher and heat-resistant; for functional parts.
• TPU – flexible; for seals and dampers.
• Resins – for high detail (miniatures, dental, jewellery).
• Powders (polymer and metal) – for industrial parts and series.

The filament catalog holds over 17,000 products with properties and applications.

What 3D printing is used for

From hobby to space – applications grow every year:

• Prototyping – fast iterations in product development.
• Manufacturing – small series, spare parts, tooling.
• Medicine – prosthetics, implants, surgical planning models.
• Education – hands-on learning of engineering and design.
• Home & hobby – gadgets, toys, repairs.

How to get started

You do not need to know everything upfront – you need your first print. If you are considering a first printer, see the buyer’s guide. For a systematic start, The Big Book of 3D Printing and the Academy cover the whole path from basics to production. And if you just need a finished part without buying a machine – our 3D printing services are available.

3D printing is not the future – it is the present, accessible to everyone. EduFacturing is the platform that makes it understandable: tools, catalogs, knowledge and services in one place. Explore the whole ecosystem and start creating.