what is a 3d scanner?

If you’re into 3D printing, you’ve probably seen or heard of 3D scanners. Maybe you've even thought, "That looks cool, but what would I use it for?" This post is here to answer that question.

We’ll break down what a 3D scanner is, how it works, and why more and more people are buying one. Whether you're a hobbyist, designer, teacher or just curious, this guide will help you get started.

Curious about what scanners are available? Take a look at our full range of 3D scanners here.

So, what is a 3D scanner?

A 3D scanner is a device that looks at a real object and turns it into a digital 3D model. It captures the shape of the object and creates a file that can be used in design software, shared online or even 3D printed.

Think of it like taking a photo, but instead of a flat image, you get a digital version you can view from all angles. It’s like copy-pasting something from the real world into your computer.

How does it work?

Different scanners use different methods, but the idea is always the same: they measure the shape of an object by capturing data from multiple viewpoints.

Some scanners project patterns of light onto the object. Others use lasers or just regular cameras combined with clever software. All of them gather information about the surface of the object and turn it into a 3D file, often in formats like STL or OBJ.

The file you get can be used in CAD software, sliced for 3D printing, or even modified if you want to tweak or improve the original object.

Want to know how to prepare objects before scanning? We’ve written a full guide on that: How to prepare an object for scanning.

What can you do with a 3D scanner?

This is usually the first question people ask. And the answer is: a lot.

Here are just a few common uses:

• Reverse engineering: Scan a part you already have and redesign it.
• Replacement parts: If something breaks, scan it and print a new one.
• Creative projects: Scan handmade models or sculptures and modify them.
• Saving objects: Keep a digital version of meaningful or fragile items.
• Learning and education: Scan real-life objects for use in schools or design projects.
• Digital design: Use real shapes as the base for new creations.

Whether you're a professional designer or a hobbyist at home, scanning can open up new ways to work and create. If you're curious about how to get a clean scan, make sure to check out our guide to preparing an object for scanning here.

Types of objects you can scan

While some objects are easier than others, most things that stay still during scanning can be captured. People scan toys, tools, models, furniture, even people.

However, some materials can be tricky. Shiny, clear or very dark surfaces might need a special spray to help the scanner read them properly. Also, very small or very detailed items require a scanner with high resolution. But for general use, most consumer-grade scanners can handle everyday objects without much trouble.

Want help choosing a scanner that fits your needs? You’ll find more about that in our post: Which 3D scanner is right for you.

Why add a 3D scanner to your setup?

If you already use a 3D printer, a scanner gives you more freedom to create. Instead of always starting with a blank screen or downloading files online, you can scan something real and build from that.

Here’s why many 3D printer owners are buying 3D scanners:

• You can recreate parts that are hard to design from scratch.
• It saves time when you're working on a custom fit.
• You can capture organic shapes that are hard to model manually.
• It's fun and inspiring to work with real-world objects.

Once you try it, you’ll start to see opportunities everywhere. From old parts to handmade items, anything becomes a starting point.

Explore some of the scanners we offer right here and see what catches your eye.

Getting started is easier than you think

You don’t need to be a professional or know complex software to start scanning. Most modern scanners come with easy-to-use software that helps you scan, edit, and export your models with just a few steps.

Some are small desktop units that do everything for you. Others are handheld and let you move freely around the object. There’s something for every skill level and budget.

Still unsure which model is right for your needs? We’ll go over the main types, features, and use cases in our post: Which 3D scanner is right for you.

A 3D scanner might sound like something high-tech, but it’s really just another tool to help you create. Whether you're restoring, customizing or experimenting, it's a powerful way to bring physical and digital together.

Want to learn how to get the best results from your scans? Don’t miss How to prepare an object for scanning where we show you how to get clean, usable results from the start.

And if you're ready to start exploring scanners, you can find them all here in our online store.

Good luck and happy scanning!