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

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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.
Generation date: 2026-02-10
3D Model Round-to-Rectangular Tube Adapter STL file ⌀33 mm to 45×70 mm, thickness 2 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model7171-nb0_dd{id}.stl : 1.6 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 33 mm (≃1 5/16 in)
#2 cylinder inlet length 29 mm (≃1.14 in)
#3 rectangle internal length 45 mm (≃1.77 in)
#4 rectangle internal height 70 mm (≃2 3/4 in)
#5 rectangle inlet length 60 mm (≃2 3/8 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 120 mm (≃4.72 in)
#9 thickness 2 mm (≃0.08 in)
#10 chamfer chamfers on the outside
of the cylindrical tube
and on the inside of
the rectangular tube
Metadata Value
Cylinder internal diameter 29 mm (≃1.14 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 30 mm
rectangle internal length 62 mm
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rectangle inlet length 50 mm
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Parameter Value Unit
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rectangle internal height 82 mm
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Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 43×82 mm, thickness 2 mm (📦 #2601)

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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 62×82 mm, thickness 2 mm (📦 #2599)

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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀21.9 mm to 80×80 mm, thickness 2 mm + offset (📦 #2896)

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Round-to-Rectangular Tube Adapter STL file ⌀21.9 mm to 80×80 mm, thickness 2 mm + offset
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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 60×60 mm, thickness 2 mm (📦 #1919)

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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀48.5 mm to 80×80 mm, thickness 3 mm (📦 #6760)

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Parameter Value Unit
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Parameter Value Unit
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cylinder inlet length 14 mm
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Parameter Value Unit
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cylinder inlet length 30 mm
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Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 68×24 mm, thickness 3 mm (📦 #2198)

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Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 68×24 mm, thickness 3 mm
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.
Parameter Value Unit
cylinder outer diameter 40 mm
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Parameter Value Unit
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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
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Round-to-Rectangular Tube Adapter STL file ⌀49.1 mm to 53×43 mm, thickness 2 mm + offset (📦 #8078)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀49.1 mm to 53×43 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀49.1 mm and a rectangular section with internal dimensions 53×43 mm. The shell thickness is 2 mm and the total length is 100 mm. The adapter has an offset of 10 mm along the Z axis. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 49.1 mm
cylinder inlet length 30 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 100×50 mm, thickness 2 mm + offset (📦 #1858)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 100×50 mm, thickness 2 mm + offset
Download this 3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀60 mm and a rectangular section with internal dimensions 100×50 mm. The shell thickness is 2 mm and the overall length is 150 mm. The adapter has an offset of 15 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 60 mm
cylinder inlet length 50 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
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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 ⌀45 mm to 150×120 mm, thickness 2 mm + offset (📦 #1940)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀45 mm to 150×120 mm, thickness 2 mm + offset
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀45 mm and a rectangular section with internal dimensions 150×120 mm. The wall thickness is 2 mm and the total length is 130 mm. The adapter has an offset of 15 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 45 mm
cylinder inlet length 25 mm
rectangle internal length 150 mm
rectangle internal height 120 mm
rectangle inlet length 60 mm
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thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 80×80 mm, thickness 3 mm (📦 #4602)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 80×80 mm, thickness 3 mm
Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀50 mm and a rectangular section with internal dimensions 80×80 mm. The shell thickness is 3 mm and the total length is 120 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 50 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 40 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 file ⌀48 mm to 54×25 mm, thickness 2 mm + offset (📦 #8073)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀48 mm to 54×25 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀48 mm and a rectangular section with internal dimensions 54×25 mm. The wall thickness is 2 mm and the overall length is 100 mm. The adapter has an offset of 10 mm along the Z axis. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 48 mm
cylinder inlet length 30 mm
rectangle internal length 54 mm
rectangle internal height 25 mm
rectangle inlet length 50 mm
offset Z 10 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀49.5 mm to 54×25 mm, thickness 2 mm + offset (📦 #8076)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀49.5 mm to 54×25 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀49.5 mm and a rectangular section with internal dimensions 54×25 mm. The wall thickness is 2 mm and the total length is 100 mm. The adapter has an offset of 10 mm along the Z axis. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 49.5 mm
cylinder inlet length 30 mm
rectangle internal length 54 mm
rectangle internal height 25 mm
rectangle inlet length 50 mm
offset Z 10 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL 3D file ⌀83 mm to 79×40 mm, thickness 2 mm (📦 #9212)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀83 mm to 79×40 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀83 mm and a rectangular section with internal dimensions 79×40 mm. The shell thickness is 2 mm and the overall length is 80 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 83 mm
cylinder inlet length 35 mm
rectangle internal length 79 mm
rectangle internal height 40 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 80×80 mm, thickness 3 mm (📦 #4604)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 80×80 mm, thickness 3 mm
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀50 mm and a rectangular section with inner dimensions 80×80 mm. The shell thickness is 3 mm and the total length is 160 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 50 mm
cylinder inlet length 50 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 160 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀52 mm to 77×33 mm, thickness 2 mm (📦 #2200)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀52 mm to 77×33 mm, thickness 2 mm
Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀52 mm and a rectangular section with inner dimensions 77×33 mm. The wall thickness is 2 mm and the total length is 100 mm. A chamfer is applied on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 52 mm
cylinder inlet length 20 mm
rectangle internal length 77 mm
rectangle internal height 33 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 60×60 mm, thickness 3 mm (📦 #1485)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 60×60 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀80 mm and a rectangular section with inner dimensions 60×60 mm. The shell thickness is 3 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
cylinder inlet length 30 mm
rectangle internal length 60 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀35 mm to 84.9×35 mm, thickness 3 mm (📦 #6212)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀35 mm to 84.9×35 mm, thickness 3 mm
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀35 mm and a rectangular section with inner dimensions 84.9×35 mm. The wall thickness is 3 mm and the overall length is 100 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 35 mm
cylinder inlet length 25 mm
rectangle internal length 84.9 mm
rectangle internal height 35 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer chamfers on ...

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

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀30 mm to 84.9×35 mm, thickness 3 mm
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀30 mm and a rectangular section with inner dimensions 84.9×35 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.
Parameter Value Unit
cylinder outer diameter 30 mm
cylinder inlet length 25 mm
rectangle internal length 84.9 mm
rectangle internal height 35 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer chamfers on ...