3D-Printable Gear CAD Design

I need a precise CAD model for a small plastic gear that I’ll fabricate on my desktop FDM printer. This is a standalone cog, so it does not have to match any existing drivetrain or housing; performance, smooth rotation, and printability are the key concerns... (Budget: $10 - $30 USD, Jobs: 3D CAD, 3D Modelling, 3D Print Design, 3D Printing, CAD/CAM, Fusion 360, Product Design, Solidworks)