3D preview of Square Duct Stepped Adapter
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Interactive 3D model of Square Duct Stepped Adapter

Fittings and adapters

Square Duct Stepped Adapter

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Bounding box
90.5 × 90.5 × 29.5 mm
Engine
Precision B-rep
Parameters
4
Published
September 18, 2026

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The prompt

I need a fan stepped adapter from A fan which is square 81x81mm to a duct which is 62x62mm and the loft lengh needs to be 20mm

Parameters

NameValueRange
Large Side81 mm50 – 150
Small Side62 mm30 – 120
Loft Length20 mm5 – 100
Wall Thickness3 mm1 – 10

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.

Square Duct Stepped Adapter - Free CAD Model (STEP, STL) | TextoCAD