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OUTPUT · STEP (AP214)
PARAMETRIC · 3D · STEP

Worm Gear Generator

Enter module, number of starts, shaft diameter, length, bore, and helix direction to generate a STEP file for a worm gear (worm only).

Pressure Angle 20° Tooth Form Rack Section Loft Use Worm Power Transmission
🔍 View 3D Preview First
HOW-TO How to Generate a Worm Gear STEP File +
  1. Enter the module, number of starts, shaft diameter, length, bore, and helix direction
  2. Calculated values update in real time as parameters change
  3. Click "Download STEP File" or "Preview STEP Model"
  4. If you selected "Download STEP File", the STEP file will be saved automatically
  5. If you selected "Preview STEP Model", check the 3D model, then click "Download STEP File" manually
SAMPLE
STATIC · DEFAULT-VALUE MODEL
● SAMPLE IMAGE
VIEW · ISO
m=2 · w=1 · ⌀20 · L40
WORM GEAR
DEFAULT PARAMETERS
Worm Gear Generator SAMPLE · m=2 · w=1 · L40
This is a sample image. After generating, view the actual model in 3D preview. 3D Preview →
CALCULATED · SPEC
AUTO-COMPUTED
β
5.74deg
Helix Angle
L
6.31mm
Lead
dp
20.00mm
Pitch Diameter
da
24.00mm
Tip Diameter
df
15.00mm
Root Diameter
Tags
Gear Power Transmission For 3D Printing
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PARAMETERS
Enter Dimensions
6 REQUIRED
0.5–4 mm
mm

Basic unit determining tooth size

1–3 starts
starts

Number of helical threads (integer)

5–100 mm
mm

Pitch diameter of the worm

10–100 mm
mm

Total length of the worm (m×2 mm at each end is a smooth shoulder)

0–100 mm
mm

Diameter of the center bore (0 = no bore)

Helix Direction

Direction of the helix (right-handed is typical)

CAUTION

The worm gears generated by this tool are reference implementations based on estimated values from multiple sources. Generation may take up to 60 seconds.

ABOUT · STEP

The STEP file (.step / .stp) is a standard 3D CAD format that retains dimensional and topology data. Compatible with major CAD software including Fusion 360, SolidWorks, and FreeCAD.

  • Full-scale solid (mm units)
  • Editable dimensions and post-processing in CAD
  • Convertible with a slicer for 3D printing

Generating 3D model...