Volex Labs / Forge / Shaft generator — text to CAD.

Shaft generator — text to CAD.

Describe a stepped shaft — each diameter and length, keyways, chamfers and shoulders — and Forge builds the turned solid and exports STEP for the lathe or STL for a print.

Steps, keyseats and chamfers are placed to your dimensions, so the shaft drops into your bearings and couplings without rework.

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

Three-step drive shaft with keywayExample — your parameters, your file
a stepped shaft: 20mm x 40mm, then 25mm x 60mm, then 20mm x 30mm, 6mm keyway on the middle step, 1mm chamfers
ParameterValue
Step 1Ø20 × 40 mm
Step 2Ø25 × 60 mm
Step 3Ø20 × 30 mm
Keyway6 mm, middle step
Chamfers1.0 mm × 45°
Total length130 mm
ExportSTEP / STL
Every part is checked before you download it — geometry, and where relevant FEA against textbook theory. See the verification report.

Frequently asked

Can I add keyways and splines?
Yes — keyways are a parameter; describe the width, depth and which step. Simple splines are supported too.
Will the shoulders be square for bearings?
Yes, each shoulder is square with a small fillet you can set, so bearings and circlips seat correctly.
STEP or STL for a shaft?
STEP for turning on a lathe or CNC; STL only if you're 3D printing a prototype.
Pricing?
Free to try; a downloadable shaft is from £2.99.

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Timing pulley & sprocket generator — text to CADEnclosure & housing generator — text to CADMounting plate generator — text to CADAll of Volex Forge

A shaft that fits your bearings.

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

Generate it in Forge →