If you want ready-made models for 3D printing, there are several places on the internet catering to this very need. All3DP compiled three websites with the most exhaustive collection of models for 3D printing.
Thingiverse is probably the most popular website in this regard. Not only does it have over a 100,000 models to select from, the website is regularly updated by its users who upload their own models while simultaneously browsing through models uploaded by other users. In fact, you can even create and upload your own models to Thingiverse.
Google’s 3D warehouse is another website which hosts thousands of 3D models that can be used for printing. However, the models may require some work before becoming eligible to be used for 3D printing. This is because even though the 3D warehouse has millions of 3D models, not all of the files support an STL format which is necessary for 3D printing,
Home to over a million engineers, GrabCAD features a wide assortment of models that can cater to every whim and desire. However, you may need to apply the 3D print filter in order to find the files that have STL options.
License: The text of "3D Print Models For Free: Where to get them?" by All3DP is licensed under a Creative Commons Attribution 4.0 International License.