There are many 3D Printer CAD Model Repositories. The websites below are the ones we have used and recommend. Many have free downloadable CAD models and some are subscription services with low cost. A few are free CAD software companies with free models that have been designed with their software. We will add new websites as we find and use them.

We suggest you check them out for yourself!

Thingiverse (https://www.thingiverse.com/)

Was created by the Makers of the MakerBot. Thingverse Is a universe of things. Download their files for free and build them with your lasercutter, 3D printer or CNC. This site is built with designers from all over the world. Thingiverse is one of the biggest and most popular free downloadable CAD file repositories in the universe.

Yeggi (https://www.yeggi.com/)

Search engine for 3D printable models.  The index contains 863,499 3D models.  It is worldwide and many new models are added every day.

3dwarehouse (https://3dwarehouse.sketchup.com/)

Hobbyists, kids, and backyard spaceship builders all agree that SketchUp Make is the easiest, most fun, entirely free 3D drawing tool in the world. We think you will too. SketchUp Make has many 3D models you can download all drawn on Sketchup free software.

Autodesk 123D (https://www.123dapp.com/)

Autodesk123D has 10,000+ free 3D models for download or use free 3D modeling apps to create your own!  Start with a 3D model, then customize it to your liking. Or, start from scratch with any of their amazing, free apps.

My Mini Factory (https://www.myminifactory.com/)

A very large printable 3D model repository in which every 3D model has been certified printable and has been printed with good success.

3DShook (https://www.3dshook.com/)

Choose from over 1,600 products and 6,000+ models to 3D print.  These are tested, exclusive and designed by pros. 3DShook is perfect for 3D printing. Try this site for free.

Cults3D (https://cults3d.com/)

A long-time repository with many interesting 3D models and projects.

YouMagine (https://www.youmagine.com/)

The best open source print files and designs available for you to build upon or simply download and 3D print!  Ultimaker’s companion 3D content repository, which contains many multi-part 3D printing projects.

CGTrader (https://www.cgtrader.com/)

This is a 3D model marketplace for computer graphics and 3D printing, backed by a strong designer community. It contains digital material for 3D printing. With currently 260,000 3D models, this is a site that has many incredible pieces, but many are priced highly as a result.

GrabCAD (https://grabcad.com/)

GrabCAD, Inc. is a Cambridge, Massachusetts-based startup that has created a free cloud-based collaboration solution that helps engineering teams manage, view and share CAD files

Cuboyo.com (https://www.cuboyo.com/)

Three 3D Printing enthusiasts in Switzerland, with backgrounds in industrial engineering and software have launched Cuboyo. On Cuboyo you will find a whole array of 3D object files that you can print at your convenience anytime you want.

Pinshape (https://pinshape.com/)

Pinshape is a thriving 3D printing community and marketplace full of quality 3D printable files. Sell and share your designs or download 3D files to print now!

3DAGOGO (https://3dagogo.com/)

3DaGoGo offers a selection of awesome 3D designs that are verified to print in most consumer 3D printers. No more failed prints!  A popular repository aligned with Astroprint containing many free and some low-priced 3D models.

3DShare (https://3dshare.com/)

3DShare is the new marketplace for 3D printable files. Think of it as the appstore for 3D files. A busy 3D marketplace for designers and buyers, but with very low pricing and many free 3D models.

Printables.com (https://www.printables.com/)

Printables Your go-to site for high-quality 3D-printable models, no matter what machine you have. Download pre-sliced print files for your 3D printer and start printing immediately. Free and easy to use. Unique reward system. More than 120.000 models. Just download and print. Formerly PrusaPrinter.org