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Custom Rectangular duct adapter STL 3D file 200x90 mm to 80x80 mm – transition: 60 mm 📦#3870

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Rectangular duct sleeve downloadable as STL 3D file. The internal cross-section on side A is 200x90 mm (rectangular), while side B is 80x80 mm (square). The insertion length on side A is 40 mm, while on side B it is 30 mm. Between the two sleeves, the transition section adds 60 mm, giving an overall length of 130 mm. Wall thickness is generous (4 mm). The ends are left without chamfers, with sharp inner and outer edges.
Generation date: 2025-11-27
3D Model Rectangular duct adapter STL 3D file 200x90 mm to 80x80 mm – transition: 60 mm

3D model download

Free
  • rectangular-to-rectangular-duc_model3870-nb0_dd{id}.stl : 751.8 Ko
STL Mesh quality : Linear deflection 0.0005 Angular deflection 0.05
No compliance warranty No compliance warranty
(attribution - non commercial use - no derivatives)
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Photos of the model once printed

Rectangular duct adapter STL 3D file 200x90 mm to 80x80 mm – transition: 60 mm

Values for this model

This model was generated by the Rectangular-to-rectangular duct adapter template, with the following values:
Parameter Value
#1 side A internal width 200 mm (≃7 7/8 in)
#2 side A internal height 90 mm (≃3.54 in)
#3 sleeve length on side A 40 mm (≃1 9/16 in)
#4 side B internal width 80 mm (≃3.15 in)
#5 side B internal height 80 mm (≃3.15 in)
#6 sleeve length on side B 30 mm (≃1 3/16 in)
#7 thickness 4 mm (≃0.16 in)
#8 transition length 60 mm (≃2 3/8 in)
#9 Y offset 0 mm (0 in)
#10 Z offset 0 mm (0 in)
#11 end chamfers none
Metadata Value
external width on side A 208 mm (≃8 3/16 in)
external height on side A 98 mm (≃3.86 in)
external width on side B 88 mm (≃3.46 in)
external height on side B 88 mm (≃3.46 in)
total length 130 mm (≃5 1/8 in)
illustration of the parameters
Parameter overview

Labels are used in the naming of the downloaded 3D files.

Parameter Label
#1 side A internal width widRA
#2 side A internal height heiRA
#3 sleeve length on side A lenSA
#4 side B internal width widRB
#5 side B internal height heiRB
#6 sleeve length on side B lenSB
#7 thickness thi
#8 transition length tra
#9 Y offset ofsY
#10 Z offset ofsZ
#11 end chamfers cha

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Parameter Value Unit
side A internal width 110 mm
side A internal height 110 mm
sleeve length on side A 30 mm
side B internal width 80 mm
side B internal height 80 mm
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Parameter Value Unit
side A internal width 60 mm
side A internal height 60 mm
sleeve length on side A 20 mm
side B internal width 60 mm
side B internal height 60 mm
sleeve length on side B 20 mm
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Parameter Value Unit
side A internal width 100 mm
side A internal height 40 mm
sleeve length on side A 30 mm
side B internal width 80 mm
side B internal height 80 mm
sleeve length on side B 30 mm
thickness 3 mm
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Parameter Value Unit
side A internal width 100 mm
side A internal height 20 mm
sleeve length on side A 20 mm
side B internal width 80 mm
side B internal height 20 mm
sleeve length on side B 20 mm
thickness 2 mm
transition length 20 mm
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Parameter Value Unit
side A internal width 90 mm
side A internal height 90 mm
sleeve length on side A 40 mm
side B internal width 200 mm
side B internal height 90 mm
sleeve length on side B 40 mm
thickness 6 mm
transition length 100 mm
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Parameter Value Unit
side A internal width 60 mm
side A internal height 60 mm
sleeve length on side A 10 mm
side B internal width 80 mm
side B internal height 80 mm
sleeve length on side B 10 mm
thickness 1 mm
transition length 180 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none