Volex Labs / Forge / Spur gear generator — text to CAD.

Spur gear generator — text to CAD.

Describe the gear you need — module, number of teeth, bore, face width, pressure angle — and Volex Forge builds the involute tooth profile and returns a manufacturable STEP, STL or DXF, ready for CNC, 3D printing or laser cutting.

No CAD seat, no tooth-profile maths. The geometry is generated to standard involute form and checked before you download it, so the part fits and meshes the first time.

Generate this part — from £2.99 → How Forge works
Free to try Parts from £2.99 STEP · STL · DXF FEA-verified

What you get

From a plain-English prompt

20-tooth module-2 spur gear in steelExample — your parameters, your file
a 20-tooth spur gear, module 2, 10mm bore, 8mm face width, 20° pressure angle, steel
ParameterValue
Teeth (z)20
Module (m)2.0 mm
Pitch dia (d = m·z)40.0 mm
Outside dia44.0 mm
Pressure angle20°
Bore10.0 mm
Face width8.0 mm
ExportSTEP / STL / DXF
Every part is checked before you download it — geometry, and where relevant FEA against textbook theory. See the verification report.

Frequently asked

Is the spur gear actually manufacturable?
Yes — Forge builds a true involute tooth profile with standard addendum, dedendum and root fillet, and exports a solid STEP for CNC or STL for printing. It is real geometry, not a render.
Can I set the bore, keyway and hub?
Yes. Bore diameter, hub diameter and face width are all parameters. Describe them in the prompt and they appear in the model.
What does a gear cost?
Forge is free to try; individual parts are from £2.99. You only pay when you download a file you want.
Which format should I use?
STEP for CAD and CNC, STL for 3D printing, DXF if you only need the 2D tooth profile for laser or waterjet.

More Forge generators

Flange generator — text to CADBracket generator — text to CADShaft generator — text to CADAll of Volex Forge

Need a gear that meshes on the first try?

Free to try · parts from £2.99 · STEP, STL or DXF · every part verified before download.

Generate it in Forge →