Model previewISOMETRIC

Left drag: orbit · right drag: pan · scroll: zoom · F: fit

Generating geometry…

Loading the local calculation engine…

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Input speedrpm

Phase 0.00 rad

RatioLab gear and reducer generator

Free, open-source tools for parametric gears and reducers, with 3D motion and STEP/STL exports.

The browser workspace requires JavaScript, WebAssembly, Web Workers and WebGL over HTTPS or localhost.

Browser app guide · Download the desktop version