3D preview of Rack and Pinion Mechanism
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Interactive 3D model of Rack and Pinion Mechanism

Jigs and fixtures

Rack and Pinion Mechanism

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Bounding box
200.0 × 30.0 × 57.0 mm
Engine
Precision B-rep
Parameters
11
Published
September 30, 2026

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The prompt

"Generate a 3D CAD model assembly of a functional spur rack and pinion mechanism with a 20-degree pressure angle and a module of 2 mm.Pinion Parameters:Number of teeth: 20Pitch diameter: 40 mmFace width: 15 mmCenter bore diameter: 8 mm with a standard keyway slot.Rack Parameters:Length: 200 mmTooth pitch: 6.283 mm ($\pi \times \text{module}$)Rack base height below pitch line: 15 mmFace width: 15 mmSet the pinion pitch circle tangentially mated to the rack's pitch line for exact meshing depth. Output as a clean manifold STEP/IGES assembly file with standard ISO spur tooth profile geometry."

Parameters

NameValueRange
Module2 mm0.5 – 5
Pressure Angle20 degree10 – 30
Pinion Teeth20 count10 – 60
Pinion Face Width15 mm5 – 40
Pinion Bore Diameter8 mm3 – 20
Keyway Width3 mm1 – 8
Keyway Depth1.4 mm0.5 – 4
Rack Length200 mm50 – 400
Rack Face Width15 mm5 – 40
Rack Base Height Below Pitch Line15 mm5 – 50
Rack Tooth Pitch6.28 mm5 – 25

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

Rack and Pinion Mechanism - Free CAD Model (STEP, STL) | TextoCAD