FREE SKETCHUP 3D MODELS
These are 3D models is the Sketchup format. Sketchup is a free 3D modeling program great for woodworking. You can download the program from the Sketchup website here - Sketchup
FREE STL FILES FOR 3D PRINTING
These are 3D CAD models you can download and 3D print. Files are hosted on Thingiverse.