PARAMETRIC GEARS & REDUCERS / OPEN SOURCE

Open-source desktop software for parametric gears and reducers.

Choose a model. Set the dimensions. Inspect it in 3D. Export your design.

WINDOWS · MACOS · LINUX

MODEL STUDY / 001WORKSPACE PREVIEW

Geometry by RatioLab. Motion, in your browser.Drag to orbit · arrow keys also work

A look inside the desktop app.RatioLab workspace screenshot

REAL GENERATED GEOMETRY / IDEAL KINEMATIC MOTIONUnderstand the motion

DESKTOP APPLICATION

The desktop workspace

Set dimensions and inspect the generated model alongside its parameters and results.

Choose a gear or reducer family, adjust its dimensions, then save the project or export geometry for CAD and 3D printing.

INSTALLATION & RELEASE FILES

Download RatioLab

Stable 0.1.3

Installers include the required dependencies. A compatible graphics driver is needed.

Windows Setup is unsigned. macOS packages use ad-hoc signing without notarization.

All desktop versions

Windows 11 · x64

macOS 15 or later

x64 · glibc 2.39+ · Ubuntu 24.04 build baseline

VERIFY YOUR FILES

CAPABILITIES

Ten model families: Spur, helical and double-helical gears; planetary, cycloidal, strain wave, worm, parallel-shaft and internal-gear reducers; bevel differentials.
Inspection and analysis: Animated 3D preview, component selection, sampled measurements, bills of materials and calculation reports. Finite parameter searches and discrete interference checks report their coverage and limits.
Projects and export: Save and reopen projects, undo edits and recover unsaved work. Export STEP, STL, SVG/DXF, reports or complete packages. SolidCraft, Autodesk Fusion and local MCP are optional integrations.

Geometry and ideal motion do not certify strength, service life or manufacturing readiness. Accuracy and limitations

SOURCE & SUPPORT

RatioLab is free software under GPL-3.0-only. Study or modify the source, report a problem, or discuss your project with the community.