Free and Paid Models for 3D Printing: Exploring the Best Online Sources for STL Files

Killer Grafix
7 min readJan 15, 2023

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There are many providers for .stl files whether free or paid

From toys and tools to prosthetic limbs and architectural models, 3D printing has completely changed how we create and make items. The STL file, which stands for “stereolithography,” is one of the most significant formats for 3D printing. It is straightforward and effective to create a model for 3D printing thanks to the use of STL files to represent 3D geometry.

We’ll look at the best free and paid online sources for STL files with examples of popular models on each website in this guide. In addition, we will talk about the various kinds of models that are available in STL format, such as household items, tools, toys, architectural models, and mechanical parts.

This tutorial will assist you in locating the appropriate STL files for your 3D printing projects whether you are a beginner or a seasoned expert. Let’s dig right in and learn more about 3D printing with STL files.

Online Repositories for STL files:

There are numerous online repositories where you can locate STL files for your 3D printing projects. It is important to look into each of these websites to find the one that best suits your requirements because they each have their own special features and offerings. Popular online STL file repositories include the following:

Thingiverse:

Free

One of the biggest and most well-known online communities for 3D printing is Thingiverse. As addition as a significant selection of free and open-source STL files, it offers a wide range of models, including toys, tools, and household objects. Thingiverse is a terrific resource for finding a variety of models, from straightforward to sophisticated, as well as a vibrant community where you can share and get input on your own creations.

Printables:

Free

The website Printables specializes on 3D printable models of commonplace things and home furnishings. It is an excellent resource for finding models for household products because it has a huge selection of both free and paid models.

YouMagine:

Free

YouMagine is an online community for 3D printing enthusiasts and designers. It features a wide variety of models, including tools, toys, and household items, as well as a large collection of free and open-source STL files. YouMagine is a great place to find a wide range of models, from simple to complex , and also has an active community where you can share and get feedback on your own designs.

TurboSquid:

Free / Paid

TurboSquid is a website that makes high-quality 3D models for architecture, gaming, and animation, among other fields. It is a great place to find models of a professional quality for your projects and offers both free and paid models.

GrabCAD Library:

Free

GrabCAD is a website that serves as a community for designers and engineers and offers a wide range of models, such as consumer goods, architectural models, and mechanical components. It is a fantastic location to find models for mechanical and engineering tasks.

Free3D:

Free / Paid

A good selection of models for many usage are available on the website LibraryFree3D, which provides free 3D models for 3D printing and other uses.

Instructables:

Free

An excellent resource for finding models for DIY projects is the online DIY community Instructables, which provides a huge selection of free and paid models.

NIH 3D Print Exchange:

Free

NIH 3D Print Exchange is a website that offers a wide variety of medical models and .stls for 3D printing, it’s a great place to find models for medical and educational purposes.

African Fossils:

Free

A fantastic resource for models for scientific and educational reasons is the website African Fossils, which provides a library of 3D models of African fossils.

NASA:

Free

NASA is a great place to find 3D models of some of their spacecraft and other equipment for educational and scientific purposes.

Dremel Lesson Plans:

Free

Dremel Lesson Plans is a website that offers a collection of 3D models and lesson plans for educators, it is a great place to find models for educational purposes.

Smithsonian X 3D:

Free

A fantastic location to get models for educational and scientific reasons is Smithsonian X 3D, a website that offers a collection of 3D models of Smithsonian objects and specimens. Users can download, print, and alter the 3D models because to the open access nature of the material.

Marketplaces for STL files:

Cults:

Paid

A marketplace for 3D printing files, Cults offers a huge selection of models, including works of art, jewelry, and home décor. There are numerous models to pick from, many of which are distinctive and one-of-a-kind. They also have a section just for purchased models, so you can be guaranteed to get models that are of a high caliber and have been tried and tested for 3D printing.

MyMiniFactory:

Paid

A website called MyMiniFactory offers a carefully curated selection of excellent 3D models that have been 3D printed. They have a section for purchased models, so you can be guaranteed to get models that are of the highest caliber and have undergone 3D printing testing. The fact that all of the models on MyMiniFactory have been tested and are guaranteed to print is one advantage, which is excellent for novices. MyMiniFactory offers a limited selection of models than other websites, which is a drawback of utilizing it.

Pinshape:

Paid / Free

A marketplace for 3D printing files, Pinshape includes a large selection of models, such as works of art and jewelry, as well as a library of free STL files. One benefit of using Pinshape is that it offers a large selection of models, many of which are distinctive and one-of-a-kind designs. However, using Pinshape has the drawback that it is not a curated platform, therefore not all of the files have been tested for 3D printing.

Fab365:

Paid

A marketplace for 3D printing files, Fab365 focuses on producing 3D printed goods that are practical and useful in daily life. There is a huge selection of models available, including furniture, jewelry, and other useful goods. The models are created with utility in mind and have been 3D printed, which is one advantage of using Fab365. There might not be as many models available as in some other markets, though.

Threeding:

Paid

Free and paid models are available on Threeding, a marketplace for 3D printing files. Art, jewelry, and household items are just a few of the many models it offers. One advantage of using Threeding is that it offers a large selection of models, many of which are one-of-a-kind. However, the fact that Threeding is not a curated platform means that not all files have been tested for 3D printing, which is a drawback.

Redpah:

Paid / Free

Models for tabletop gaming and other hobbies are especially popular on Redpah, a marketplace for 3D printing files. They offer a large selection of models, such as terrain, miniatures, and other gaming supplies. Redpah’s models are created with tabletop gaming in mind and have undergone 3D printing testing, which is one advantage. Redpah’s disadvantage is that it is a new platform, thus the variety of models may not be as wide as on some other marketplaces.

CGTrader:

Paid

Free and paid models are available on the marketplace for 3D printing files known as CGTrader. Art, jewelry, and household items are just a few of the many models it offers. Using CGTrader has the advantage of offering a wide selection of models, including numerous one-of-a-kind designs. However, CGTrader is not a curated platform, so not all files have been tested for 3D printing, which is a disadvantage.

3DExport:

Paid

A marketplace for 3D printing files called 3DExport provides both free and commercial models. It offers a wide selection of models, including works of art, jewelry, and home furnishings. One advantage of using 3DExport is that it offers a large selection of models, many of which are distinctive and one-of-a-kind in design. The fact that 3DExport is not a curated platform, meaning that not all the files have been evaluated for 3D printing, is a drawback of using it.

Etsy:

Paid

In addition to selling handmade and vintage items online, Etsy also has a variety of 3D printed goods, such as jewelry and other items. One benefit of using Etsy for STL files is that it provides distinctive, one-of-a-kind designs and makes it simple to locate products made by independent entrepreneurs. The fact that Etsy is not a curated site, however, means that not all of the files have been tested for 3D printing.

Sketchfab:

Paid

a marketplace for 3D printing files and a platform for content in 3D, VR, and augmented reality. is a great place to find a wide variety of models and offers both free and paid models. curated platform containing models whose printability and quality are evaluated. Users can provide models with comments and feedback on a community-driven platform. enables users to embed models on their websites and provides a variety of 3D formats as well as a three-dimensional view of models. possesses a smaller model selection than other marketplaces.

Finding the Right STL Files for 3D Printing:

In this article, we have discussed the different online sources for STL files, including free and paid marketplaces. We have highlighted the pros and cons of each platform, and provided examples of popular models available on each site.

Finding the best model for your project requires taking into account both the model’s quality and its applicability to your particular project. Consider a purchased model from a marketplace like MyMiniFactory or Fab365, which have a selected selection of models that are guaranteed to print, if you’re searching for a practical item, like a mechanical clock, for instance. On the other hand, a marketplace like Etsy or Sketchfab would be a better choice if you’re seeking for a distinctive, one-of-a-kind model.

Another piece of advice is to always check the model’s size and scale before downloading it because some models could be too tiny or large for your particular project. Before downloading a model, it’s also a good idea to check user comments and ratings since this can help you determine the model’s printability and quality.

There are many online sources for .stl files, both free and paid. It’s important to consider the quality, suitability, and scale of the model before downloading, as well as reading the comments and reviews of other users to get a better idea of the model’s printability and quality. Happy printing!

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Killer Grafix

All about 3d Printing supplies and units, as well as many DIY projects.