Free Custom Gear Designer | Tailored Teeth, Shaft Bores & Spoke Styling

Standard off-the-shelf catalog gears rarely fit custom robotics or DIY machinery projects. GearDXF is a complete custom gear designer: specify exact tooth numbers, custom shaft bores with drive keyways, mounting bolt circles, and decorative or weight-saving spokes.

Key Features

• Total freedom over tooth counts (from 6 to 300+ teeth)
• Custom center shaft bore diameters with DIN/ANSI drive keyways
• 10+ spoke cutout styles: straight arms, circles, slots, ellipses, and teardrops
• Custom outer rim wall thickness for internal ring gears
• Interactive visual canvas with instant geometry recalculation
• Direct export to CAD DXF, vector SVG, and 1:1 scale printable PDF

Frequently Asked Questions

Can I design gears with non-standard tooth counts?

Yes! Off-the-shelf gears usually come in limited tooth counts. GearDXF lets you generate any integer tooth count from 6 up to hundreds of teeth.

How do I add spokes to reduce gear weight?

In the gear properties panel, open Spoke Options. Choose your preferred cutout pattern (circular cutouts, spoke arms, teardrops), set the number of cutouts, and adjust the cutout size.

Are custom gears exported with clean cutting paths?

Yes, all bore holes, keyways, and spoke cutouts are boolean-combined into clean, non-intersecting closed polylines in the exported DXF.