VaseMode Light Shade
thingiverse
VaseMode Light Shade. Honestly, I'm not recalling the exact dimensions but what's certain is that your build volume should be at least 250x250x200. My printer boasts a 300x300x250 build volume, so keep that in mind. Scaling down isn't an option since the light fixture is as large as the hole itself. If you want a smaller version, I'd suggest learning to use Fusion360 and creating one from scratch. It's ridiculously simple: just create a profile of the shape you desire, revolve it, and voila - lamp shade.
With this file you will be able to print VaseMode Light Shade with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on VaseMode Light Shade.