Custom Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 68×24 mm, thickness 3 mm 📦#2198

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3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀40 mm and a rectangular section with internal dimensions 68×24 mm. The shell thickness is 3 mm and the total length is 100 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Generation date: 2025-10-04
3D Model Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 68×24 mm, thickness 3 mm

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Free
  • round-to-rectangular-adapter-d_model2198-nb0_dd{id}.stl : 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 68 mm (≃2 11/16 in)
#4 rectangle internal height 24 mm (≃15/16 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 3 mm (≃1/8 in)
#10 chamfer chamfers on the outside
of the cylindrical tube
and on the inside of
the rectangular tube
Metadata Value
Cylinder internal diameter 34 mm (≃1.34 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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cylinder inlet length 40 mm
rectangle internal length 77 mm
rectangle internal height 33 mm
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Round-to-Rectangular Tube Adapter STL file ⌀35 mm to 84.9×35 mm, thickness 3 mm (📦 #6212)

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Parameter Value Unit
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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀30 mm to 84.9×35 mm, thickness 3 mm (📦 #6214)

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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀62 mm to 110×54 mm, thickness 3 mm (📦 #2840)

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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 20.3 mm
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1 object(s) - format STL
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Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀80 mm and a rectangular section with inner dimensions 60×60 mm. The shell thickness is 2 mm and the overall length is 100 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 80 mm
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Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 150×30 mm, thickness 3 mm (📦 #9839)

1 object(s) - format STL
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3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀75 mm and a rectangular section with inner dimensions 150×30 mm. The wall thickness is 3 mm and the overall length is 150 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 25 mm
rectangle internal length 150 mm
rectangle internal height 30 mm
rectangle inlet length 30 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 106×49 mm, thickness 2 mm (📦 #6737)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 106×49 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀80 mm and a rectangular section with inner dimensions 106×49 mm. The wall thickness is 2 mm and the total length is 90 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 30 mm
rectangle internal length 106 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀68 mm to 140×20 mm, thickness 4 mm (📦 #6812)

1 object(s) - format STL
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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀30 mm to 100×50 mm, thickness 3 mm (📦 #5085)

1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 30 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
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thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 100×48 mm, thickness 2 mm + offset (📦 #1862)

1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 48 mm
rectangle inlet length 30 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀107 mm to 110×54 mm, thickness 3 mm (📦 #2839)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀107 mm to 110×54 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀107 mm and a rectangular section with internal dimensions 110×54 mm. The wall thickness is 3 mm and the total length is 80 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 107 mm
cylinder inlet length 30 mm
rectangle internal length 110 mm
rectangle internal height 54 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 150×30 mm, thickness 3 mm + offset (📦 #1983)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 150×30 mm, thickness 3 mm + offset
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀75 mm and a rectangular section with inner dimensions 150×30 mm. The shell thickness is 3 mm and the total length is 150 mm. The adapter has an offset of 3 mm along the Y axis and 3 mm along the Z axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 25 mm
rectangle internal length 150 mm
rectangle internal height 30 mm
rectangle inlet length 30 mm
offset Z 3 mm
offset Y 3 mm
total length 150 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀33 mm to 45×70 mm, thickness 2 mm (📦 #7171)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀33 mm to 45×70 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀33 mm and a rectangular section with inner dimensions 45×70 mm. The wall thickness is 2 mm and the overall length is 120 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 33 mm
cylinder inlet length 29 mm
rectangle internal length 45 mm
rectangle internal height 70 mm
rectangle inlet length 60 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀20.3 mm to 20×10 mm, thickness 2 mm + offset (📦 #1810)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀20.3 mm to 20×10 mm, thickness 2 mm + offset
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀20.3 mm and a rectangular section with inner dimensions 20×10 mm. The shell thickness is 2 mm and the overall length is 75 mm. The adapter has an offset of 5 mm along the Y axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 20.3 mm
cylinder inlet length 25 mm
rectangle internal length 20 mm
rectangle internal height 10 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 5 mm
total length 75 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 60×15 mm, thickness 2 mm + offset (📦 #7942)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 60×15 mm, thickness 2 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀75 mm and a rectangular section with internal dimensions 60×15 mm. The wall thickness is 2 mm and the overall length is 120 mm. The adapter has an offset of 17.5 mm along the Z axis. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 40 mm
rectangle internal length 60 mm
rectangle internal height 15 mm
rectangle inlet length 30 mm
offset Z 17.5 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer chamfers on ...