A Wheel
grabcad
This isn't my design, I copied someone else's design but wanted some experience modeling a wheel and this looked like a good one to me.
Download Model from grabcad
With this file you will be able to print A Wheel 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 A Wheel.