Wormgear - Complete Design System

Inputs

Design Mode:

Worm OD (mm): Wheel OD (mm): Ratio:

Treat ODs as maximum constraints (find largest standard module that fits)

Wheel OD (mm): Ratio: Target Lead Angle (degrees):

Module (mm): Ratio:

Centre Distance (mm): Ratio:

Options

Pressure Angle (degrees): Backlash (mm): Number of Starts: Hand: Profile Shift Coefficient:

Round to nearest standard module (ISO 54)

Manufacturing Options

Tooth Profile (DIN 3975): Worm Type:

Throated wheel teeth (hobbed, better contact)

Waiting for calculation...

Enter parameters and click Calculate

Generate CNC-ready STEP files directly in your browser using WebAssembly.

Note: This will load ~50MB of dependencies (Pyodide, OCP, build123d). It may take 30-60 seconds on first load.