About GearCreator

A free, in-browser 3D gear designer and exporter — no install, no account.

GearCreator lets you pick a gear family, dial in parameters with sliders, and watch an accurate 3D assembly mesh update in real time. When the shape is right, export it straight to a file for CAD, simulation, or 3D printing. The Gear Gallery also has ready-made, precisely dimensioned gears you can download without opening the generator.

Supported gear families

• Hypoid / Nested Hypoid / Bevel — offset or zero-offset conical ring-and-pinion sets, including automotive-style hypoids and a Fanuc-style nested wrist.
• Spur / Helical — two meshing involute gears, with an optional helical lead angle.
• Cycloidal — a full cycloidal drive: fixed ring housing, eccentric lobed disc, and output flange.
• Two-Stage Cycloidal — compact Blagojević two-stage reducer.
• Eccentric Cycloidal — circular-arc pinion meshing a trochoid-equidistant cycloid wheel.
• Worm — a worm and worm wheel pair with configurable thread starts and lead.
• Rack & Pinion — a linear rack meshing with a rotating pinion.
• Internal — a coaxial internal ring meshing an external pinion.
• Planetary — sun, planets, fixed ring, and carrier output.
• Strain Wave / Harmonic — circular spline, flexspline, and elliptical wave generator.
• Face gears — a cylindrical pinion meshing a crown / face gear.

Features

• Real-time 3D preview — orbit, pan, and zoom around the assembly as you adjust parameters.
• Live animation — spin the drive at an adjustable RPM to check mesh and clearance visually.
• Export — STL, OBJ, GLTF, or GLB from the generator; catalog pages also offer SVG and DXF for spur gears.
• Blueprint-style rendering — crisp black outlines on every gear for readable geometry.

All gear math runs in your browser. No gear data is uploaded anywhere. See the guides for module, ratio, and manufacturing notes, or open the generator.