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Engine Connecting Rod

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Bounding box
26.0 × 76.0 × 176.0 mm
Engine
Precision B-rep
Parameters
16
Published
October 15, 2026

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The prompt

make a connecting rod used in engine

Parameters

NameValueRange
Centre Distance (big to small end)120 mm60 – 250
Crankpin Bore Dia38 mm15 – 90
Big End Outer Dia76 mm40 – 170
Big End Bearing Width26 mm10 – 60
Cap Bolt Spacing54 mm10 – 120
Cap Bolt Hole Dia9 mm3 – 20
Cap Bolt Thread Depth (from split)18 mm5 – 60
Wrist-Pin Bore Dia20 mm8 – 50
Small End Outer Dia36 mm16 – 90
Small End Bearing Width22 mm8 – 50
Wrist-Pin Oil Hole Dia4 mm1 – 12
I-Beam Thickness (along crankpin axis)16 mm6 – 40
I-Beam Overall Width24 mm10 – 60
I-Beam Flange Thickness5 mm2 – 12
I-Beam Web Thickness6 mm2 – 14
Shank Edge Fillet Radius1.5 mm0 – 4

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.

Engine Connecting Rod - Free CAD Model (STEP, STL) | TextoCAD