cogs
thingiverse
Building a versatile gear system is a great place to begin any new project. Starting with four sizes of cogs - 1, 2, 3, and 4 - provides the foundation for creating an array of gear combinations. The identical tooth size on each cog allows you to easily customize the setup to suit your specific needs.
Download Model from thingiverse
With this file you will be able to print cogs 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 cogs.