Many tools export directly to STL (for 3D printing) or DXF/SVG (for laser cutters and CNC routers). Top Free Gear Generators for 2026
Autodesk Fusion 360 is free for hobbyists and startups. It has a built-in "Spur Gear" component generator under the "Design > Solid > Create" menu. It automatically calculates the involute curve—the mathematically ideal tooth shape for smooth rotation. gear generator free
The concept usually looks like this: A large gear is spun by a small electric motor. That motor is connected to a generator. The generator powers the motor. In theory, once you give the gears a push, they should spin forever, providing "free" electricity to power your home. Many tools export directly to STL (for 3D
This device violates the : Energy cannot be created or destroyed, only transformed. The generator powers the motor
Whether you are prototyping a new invention or just tinkering in your garage, these tools remove the barrier to entry and let you focus on what matters most: bringing your machine to life.
But designing gears from scratch in CAD software? That is often easier said than done. Calculating pitch diameters, pressure angles, and involute curves requires serious math and patience.