Gear 1
grabcad
My results were when I learned to make Products with Catia, there are lots of examples on the internet for models like this, but these are made by me.enjoy, hopefully it can be useful....
Download Model from grabcad
With this file you will be able to print Gear 1 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 Gear 1.