Sakura D4 gears
thingiverse
I replaced my Sakura D4 gears with freshly printed ones made of PLA, since that's the only material I had available at the moment. It may not be ideal, but it beats waiting a whole week or four weeks for replacements to ship all the way from China.
Download Model from thingiverse
With this file you will be able to print Sakura D4 gears 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 Sakura D4 gears.