Custom Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 35×144 mm, thickness 2 mm + offset 📦#6817

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Download this 3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀80 mm and a rectangular section with inner dimensions 35×144 mm. The shell thickness is 2 mm and the overall length is 90 mm. The adapter has an offset of 20 mm along the Y axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Generation date: 2026-01-24
3D Model Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 35×144 mm, thickness 2 mm + offset

3D model download

Free
  • round-to-rectangular-adapter-d_model6817-nb0_dd{id}.stl : 1.7 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 80 mm (≃3.15 in)
#2 cylinder inlet length 20 mm (≃0.79 in)
#3 rectangle internal length 35 mm (≃1 3/8 in)
#4 rectangle internal height 144 mm (≃5.67 in)
#5 rectangle inlet length 10 mm (≃0.39 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 20 mm (≃0.79 in)
#8 total length 90 mm (≃3.54 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 76 mm (≃3 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
cylinder outer diameter 80 mm
cylinder inlet length 20 mm
rectangle internal length 31 mm
rectangle internal height 140 mm
rectangle inlet length 10 mm
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Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀84 mm and a rectangular section with internal dimensions 31×140 mm. The shell thickness is 2 mm and the overall length is 90 mm. The adapter has an offset of 25 mm along the Y 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 84 mm
cylinder inlet length 20 mm
rectangle internal length 31 mm
rectangle internal height 140 mm
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Round-to-Rectangular Tube Adapter STL file ⌀84 mm to 31×100 mm, thickness 2 mm + offset (📦 #6821)

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Round-to-Rectangular Tube Adapter STL file ⌀84 mm to 31×100 mm, thickness 2 mm + offset
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Parameter Value Unit
cylinder outer diameter 84 mm
cylinder inlet length 20 mm
rectangle internal length 31 mm
rectangle internal height 100 mm
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Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 50×100.5 mm, thickness 2 mm + offset (📦 #6815)

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Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 20 mm
rectangle internal length 50 mm
rectangle internal height 100.5 mm
rectangle inlet length 5 mm
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thickness 2 mm
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Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 20 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀34 mm to 80×80 mm, thickness 2 mm + offset (📦 #4390)

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Parameter Value Unit
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cylinder inlet length 10 mm
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Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 80×60 mm, thickness 2 mm + offset (📦 #7608)

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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 34 mm
cylinder inlet length 10 mm
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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
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Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀109 mm and a rectangular section with internal dimensions 55×108 mm. The wall thickness is 2 mm and the total length is 115 mm. The adapter has an offset of 20 mm along the Y axis and 37.5 mm along the Z axis. 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 109 mm
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Parameter Value Unit
cylinder outer diameter 80 mm
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1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀34 mm to 80×80 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀34 mm and a rectangular section with inner dimensions 80×80 mm. The wall thickness is 2 mm and the overall length is 100 mm. The adapter has an offset of 15 mm along the Y axis and 15 mm along the Z axis. 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 34 mm
cylinder inlet length 20 mm
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rectangle internal height 80 mm
rectangle inlet length 50 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 106×50 mm, thickness 3 mm + offset (📦 #4609)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 106×50 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 106×50 mm. The shell thickness is 3 mm and the total length is 100 mm. The adapter has an offset of 25 mm along the Y axis. 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 100 mm
cylinder inlet length 20 mm
rectangle internal length 106 mm
rectangle internal height 50 mm
rectangle inlet length 30 mm
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chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 31×100 mm, thickness 2 mm + offset (📦 #7250)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 31×100 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀78 mm and a rectangular section with internal dimensions 31×100 mm. The wall thickness is 2 mm and the total length is 140 mm. The adapter has an offset of 35 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 78 mm
cylinder inlet length 20 mm
rectangle internal length 31 mm
rectangle internal height 100 mm
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1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 84 mm
cylinder inlet length 20 mm
rectangle internal length 31 mm
rectangle internal height 100 mm
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1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 21.9 mm
cylinder inlet length 30 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 35 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 99×101 mm, thickness 2 mm (📦 #1847)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 99×101 mm, thickness 2 mm
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Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 25 mm
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rectangle internal height 101 mm
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thickness 2 mm
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1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 20 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 70×80 mm, thickness 2 mm (📦 #7643)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 70×80 mm, thickness 2 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀75 mm and a rectangular section with inner dimensions 70×80 mm. The wall thickness is 2 mm and the overall length is 60 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 75 mm
cylinder inlet length 25 mm
rectangle internal length 70 mm
rectangle internal height 80 mm
rectangle inlet length 10 mm
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀73 mm to 151×151 mm, thickness 2 mm + offset (📦 #2351)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀73 mm to 151×151 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀73 mm and a rectangular section with internal dimensions 151×151 mm. The wall thickness is 2 mm and the overall length is 60 mm. The adapter has an offset of 2 mm along the Y axis and 2 mm along the Z axis. 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 73 mm
cylinder inlet length 15 mm
rectangle internal length 151 mm
rectangle internal height 151 mm
rectangle inlet length 15 mm
offset Z 2 mm
offset Y 2 mm
total length 60 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀73 mm to 151×151 mm, thickness 2 mm + offset (📦 #2350)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀73 mm to 151×151 mm, thickness 2 mm + offset
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀73 mm and a rectangular section with internal dimensions 151×151 mm. The wall thickness is 2 mm and the total length is 50 mm. The adapter has an offset of 2 mm along the Y axis and 2 mm along the Z axis. 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 73 mm
cylinder inlet length 20 mm
rectangle internal length 151 mm
rectangle internal height 151 mm
rectangle inlet length 5 mm
offset Z 2 mm
offset Y 2 mm
total length 50 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀109 mm to 110×55 mm, thickness 2 mm + offset (📦 #2332)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀109 mm to 110×55 mm, thickness 2 mm + offset
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 110×55 mm. The shell thickness is 2 mm and the overall length is 107 mm. The adapter has an offset of 20 mm along the Y axis and 30 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 109 mm
cylinder inlet length 20 mm
rectangle internal length 110 mm
rectangle internal height 55 mm
rectangle inlet length 20 mm
offset Z 30 mm
offset Y 20 mm
total length 107 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀73 mm to 151×151 mm, thickness 2 mm + offset (📦 #2354)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀73 mm to 151×151 mm, thickness 2 mm + offset
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀73 mm and a rectangular section with inner dimensions 151×151 mm. The wall thickness is 2 mm and the total length is 50 mm. The adapter has an offset of 2 mm along the Y axis and 2 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 73 mm
cylinder inlet length 15 mm
rectangle internal length 151 mm
rectangle internal height 151 mm
rectangle inlet length 5 mm
offset Z 2 mm
offset Y 2 mm
total length 50 mm
thickness 2 mm
chamfer chamfers on ...