Best Repositories to Download Free 3D Printing Models and Design Files ... Reviews of the best websites to download reliable and free 3D printer files and 3D model designs (in alphabetical order) ...

For those just getting into 3D printing, whether as a hobby or a new profession, there are plenty of libraries out there for 3D printing files and models.

Other excellent resources for sourcing downloadable 3D models or creating step-by-step 3D printing projects can be found at Pinshape, 3DShook, Sketchfab, Turbosquid or Wevolver.

NASA's Chandra X-ray Observatory team has released several 3D models of celestial onbjects that you can print. Credit: ...