Are you into 3D printing and looking for new projects to work on? One of the best ways to find new models to print is by downloading free STL files from the internet. There are a number of websites that offer a wide range of 3D models and CAD files for free download. Whether you're interested in printing figurines, home decor, functional objects, or anything in between, you're sure to find something that catches your eye. Here are the top 10 websites to download free STL files for your next 3D printing project:

1. Thingiverse: Thingiverse is a popular online community for discovering, making, and sharing 3D printable things. The website offers a vast collection of user-generated STL files in categories such as art, fashion, gadgets, hobby, tools, and more.

2. MyMiniFactory: MyMiniFactory is a platform for free 3D printable files with over 70,000 designs available for download. The website has a strong focus on quality and has a team of curators who ensure that all designs are test printed to guarantee they are up to standard before they are published.

3. Cults: Cults is a marketplace that offers a combination of free and paid STL files. It features a wide variety of designs from talented artists and designers, including jewelry, fashion, home decor, and more.

4. YouMagine: YouMagine is an open community platform where makers, designers, and engineers can share and discover open-source 3D printable designs. The platform encourages collaboration and features a range of high-quality designs for users to download for free.

5. GrabCAD: GrabCAD is a hub for professional CAD users to share and download free 3D models. The website offers a vast library of CAD files ranging from engineering components to artistic designs.

6. NIH 3D Print Exchange: The National Institutes of Health (NIH) hosts a public repository of biomedical 3D printable files. The collection includes anatomical models, medical devices, and scientific instruments, all available for free download.

7. Pinshape: Pinshape is a 3D printing community and marketplace that offers a wide range of free and premium STL files. The website features a mix of hobbyist and professional designs with a focus on quality and innovation.

8. PrusaPrinters: PrusaPrinters is a community hub that offers a collection of 3D printable models, most of which are designed for Prusa 3D printers. The website also hosts contests and challenges to encourage community participation.

9. Thangs: Thangs is a search engine and community platform for 3D models that prides itself on having one of the largest databases of printable 3D models. Users can explore and download a wide variety of designs for free.

10. Yeggi: Yeggi is a search engine for 3D printable models that aggregates content from various 3D printing websites. It provides a convenient way to search for free STL files across multiple platforms.

With so many websites offering free STL files, the possibilities for your 3D printing projects are endless. Whether you're a hobbyist, professional, student, or educator, these websites provide a treasure trove of designs waiting to be brought to life through 3D printing.