Custom Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 43×43 mm, thickness 4 mm 📦#8538

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3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀40 mm and a rectangular section with internal dimensions 43×43 mm. The shell thickness is 4 mm and the total length is 100 mm.
Generation date: 2026-04-19
3D Model Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 43×43 mm, thickness 4 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model8538-nb0_dd{id}.stl : 1.2 Mo
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 Round to rectangular adapter template, with the following values:
Parameter Value
#1 cylinder outer diameter 40 mm (≃1 9/16 in)
#2 cylinder inlet length 40 mm (≃1 9/16 in)
#3 rectangle internal length 43 mm (≃1 11/16 in)
#4 rectangle internal height 43 mm (≃1 11/16 in)
#5 rectangle inlet length 40 mm (≃1 9/16 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 100 mm (≃3 15/16 in)
#9 thickness 4 mm (≃0.16 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 32 mm (≃1 1/4 in)
illustration of the parameters
Parameter overview

  • If the chamfer option on the ends is enabled, the chamfer length is equal to half the thickness.
  • The stop at the bottom of the rectangular section has a width equal to half the thickness.

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

Parameter Label
#1 cylinder outer diameter diaC
#2 cylinder inlet length lentC
#3 rectangle internal length lenIR
#4 rectangle internal height heiIR
#5 rectangle inlet length lentR
#6 offset Z ofsZ
#7 offset Y ofsY
#8 total length lenT
#9 thickness thi
#10 chamfer cha

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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 79 mm
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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 20 mm
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Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 25 mm
rectangle internal length 25 mm
rectangle internal height 5 mm
rectangle inlet length 40 mm
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offset Y 0 mm
total length 85 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀34 mm to 39.7×29.2 mm, thickness 3 mm (📦 #10226)

1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 34 mm
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Round-to-Rectangular Tube Adapter STL file ⌀74 mm to 128×30 mm, thickness 4 mm (📦 #3082)

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Parameter Value Unit
cylinder outer diameter 74 mm
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1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀32 mm to 25.4×25.4 mm, thickness 4 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀32 mm and a rectangular section with inner dimensions 25.4×25.4 mm. The wall thickness is 4 mm and the total length is 130 mm.
Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 75 mm
rectangle internal length 25.4 mm
rectangle internal height 25.4 mm
rectangle inlet length 32 mm
offset Z 0 mm
offset Y 0 mm
total length 130 mm
thickness 4 mm
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Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 128×30 mm, thickness 4 mm (📦 #2437)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 128×30 mm, thickness 4 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀78 mm and a rectangular section with internal dimensions 128×30 mm. The shell thickness is 4 mm and the total length is 80 mm.
Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 20 mm
rectangle internal length 128 mm
rectangle internal height 30 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 4 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀90 mm to 76×76 mm, thickness 3 mm (📦 #2367)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀90 mm to 76×76 mm, thickness 3 mm
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀90 mm and a rectangular section with internal dimensions 76×76 mm. The wall thickness is 3 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 50 mm
rectangle internal length 76 mm
rectangle internal height 76 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 60×5 mm, thickness 3 mm (📦 #9030)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 60×5 mm, thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 60 mm
rectangle internal length 60 mm
rectangle internal height 5 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 130 mm
thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 40 mm
rectangle internal length 100 mm
rectangle internal height 30 mm
rectangle inlet length 40 mm
offset Z 10 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀109 mm to 55×12 mm, thickness 3 mm (📦 #8797)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀109 mm to 55×12 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀109 mm and a rectangular section with internal dimensions 55×12 mm. The shell thickness is 3 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 109 mm
cylinder inlet length 40 mm
rectangle internal length 55 mm
rectangle internal height 12 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀95 mm to 110×32 mm, thickness 3 mm (📦 #10137)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀95 mm to 110×32 mm, thickness 3 mm
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀95 mm and a rectangular section with internal dimensions 110×32 mm. The wall thickness is 3 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 95 mm
cylinder inlet length 50 mm
rectangle internal length 110 mm
rectangle internal height 32 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
chamfer no chamfer