Custom Rectangle-to-rectangle duct adapter STL 3D file 38.5x177 mm to 38.5x177 mm – transition: 100 mm 📦#11934

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Rectangular duct fitting provided as 3D STL file. Side A and side B share the same internal cross-section, 38.5x177 mm, with a rectangular profile. On side A, the sleeve length is 100 mm, and on side B it is 5 mm. The transition section runs for 100 mm and the overall length is 205 mm, sleeves included. The ends are left without chamfers, with sharp inner and outer edges.
Generation date: 2026-09-22
3D Model Rectangle-to-rectangle duct adapter STL 3D file 38.5x177 mm to 38.5x177 mm – transition: 100 mm

3D model download

Free
  • rectangular-to-rectangular-duc_model11934-nb0_dd{id}.stl : 1.6 Ko
STL Mesh quality : Linear deflection 0.0005 Angular deflection 0.05
No compliance warranty No compliance warranty
(Internal and private use, non-commercial – no distribution – no derivatives)
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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 38.5 mm (≃1.52 in)
#2 side A internal height 177 mm (≃6.97 in)
#3 sleeve length on side A 100 mm (≃3 15/16 in)
#4 side B internal width 38.5 mm (≃1.52 in)
#5 side B internal height 177 mm (≃6.97 in)
#6 sleeve length on side B 5 mm (≃3/16 in)
#7 thickness 3 mm (≃1/8 in)
#8 transition length 100 mm (≃3 15/16 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 44.5 mm (≃1 3/4 in)
external height on side A 183 mm (≃7.20 in)
external width on side B 44.5 mm (≃1 3/4 in)
external height on side B 183 mm (≃7.20 in)
total length 205 mm (≃8 1/16 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 38.5 mm
side A internal height 180 mm
sleeve length on side A 98 mm
side B internal width 38.5 mm
side B internal height 180 mm
sleeve length on side B 5 mm
thickness 3 mm
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Z offset 0 mm
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Parameter Value Unit
side A internal width 20 mm
side A internal height 90 mm
sleeve length on side A 40 mm
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Parameter Value Unit
side A internal width 94 mm
side A internal height 194 mm
sleeve length on side A 30 mm
side B internal width 60 mm
side B internal height 204 mm
sleeve length on side B 30 mm
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Rectangular tube adapter STL 3D file 100x200 mm to 60x204 mm – transition: 40 mm (📦 #10511)

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Parameter Value Unit
side A internal width 100 mm
side A internal height 200 mm
sleeve length on side A 30 mm
side B internal width 60 mm
side B internal height 204 mm
sleeve length on side B 30 mm
thickness 3 mm
transition length 40 mm
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Z offset 20 mm
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Parameter Value Unit
side A internal width 100 mm
side A internal height 100 mm
sleeve length on side A 50 mm
side B internal width 50.5 mm
side B internal height 50.5 mm
sleeve length on side B 25 mm
thickness 3 mm
transition length 25 mm
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Z offset 0 mm
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1 object(s) - format STL
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Parameter Value Unit
side A internal width 150 mm
side A internal height 150 mm
sleeve length on side A 50 mm
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Parameter Value Unit
side A internal width 38 mm
side A internal height 177 mm
sleeve length on side A 10 mm
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thickness 3 mm
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Parameter Value Unit
side A internal width 37.5 mm
side A internal height 178 mm
sleeve length on side A 10 mm
side B internal width 36 mm
side B internal height 178 mm
sleeve length on side B 5 mm
thickness 3 mm
transition length 20 mm
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Z offset 0 mm
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Parameter Value Unit
side A internal width 38.5 mm
side A internal height 187.5 mm
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side B internal height 187.5 mm
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Parameter Value Unit
side A internal width 150 mm
side A internal height 150 mm
sleeve length on side A 45 mm
side B internal width 150 mm
side B internal height 150 mm
sleeve length on side B 45 mm
thickness 2 mm
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1 object(s) - format STL
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Parameter Value Unit
side A internal width 110 mm
side A internal height 55 mm
sleeve length on side A 100 mm
side B internal width 110 mm
side B internal height 55 mm
sleeve length on side B 50 mm
thickness 2 mm
transition length 20 mm
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Z offset 0 mm
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Parameter Value Unit
side A internal width 200 mm
side A internal height 200 mm
sleeve length on side A 50 mm
side B internal width 56 mm
side B internal height 56 mm
sleeve length on side B 25 mm
thickness 4 mm
transition length 40 mm
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Parameter Value Unit
side A internal width 87 mm
side A internal height 202 mm
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Parameter Value Unit
side A internal width 120 mm
side A internal height 120 mm
sleeve length on side A 30 mm
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side B internal height 80 mm
sleeve length on side B 30 mm
thickness 3 mm
transition length 20 mm
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1 object(s) - format STL
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Parameter Value Unit
side A internal width 110 mm
side A internal height 110 mm
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transition length 20 mm
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