Custom Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 30×30 mm, thickness 4 mm + offset 📦#1848

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3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀80 mm and a rectangular section with inner dimensions 30×30 mm. The shell thickness is 4 mm and the overall length is 240 mm. The adapter has an offset of 20 mm along the Y axis and 20 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.
Generation date: 2025-09-17
3D Model Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 30×30 mm, thickness 4 mm + offset

3D model download

Free
  • round-to-rectangular-adapter-d_model1848-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 80 mm (≃3.15 in)
#2 cylinder inlet length 100 mm (≃3 15/16 in)
#3 rectangle internal length 30 mm (≃1 3/16 in)
#4 rectangle internal height 30 mm (≃1 3/16 in)
#5 rectangle inlet length 100 mm (≃3 15/16 in)
#6 offset Z 20 mm (≃0.79 in)
#7 offset Y 20 mm (≃0.79 in)
#8 total length 240 mm (≃9 7/16 in)
#9 thickness 4 mm (≃0.16 in)
#10 chamfer chamfers on the outside
of the cylindrical tube
and on the inside of
the rectangular tube
Metadata Value
Cylinder internal diameter 72 mm (≃2.83 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 45 mm
cylinder inlet length 100 mm
rectangle internal length 25 mm
rectangle internal height 25 mm
rectangle inlet length 80 mm
offset Z 0 mm
offset Y 0 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 30×30 mm, thickness 3 mm (📦 #5013)

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Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 100 mm
rectangle internal length 30 mm
rectangle internal height 30 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 300 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 180×30 mm, thickness 3 mm + offset (📦 #2002)

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Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 180×30 mm, thickness 3 mm + offset
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Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 80 mm
rectangle internal length 180 mm
rectangle internal height 30 mm
rectangle inlet length 100 mm
offset Z 5 mm
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total length 260 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 84×34 mm, thickness 4 mm (📦 #6226)

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Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀76 mm and a rectangular section with internal dimensions 84×34 mm. The wall thickness is 4 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 76 mm
rectangle internal length 84 mm
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offset Y 0 mm
total length 200 mm
thickness 4 mm
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Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 150×30 mm, thickness 3 mm + offset (📦 #7778)

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Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 150×30 mm, thickness 3 mm + offset
Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀80 mm and a rectangular section with internal dimensions 150×30 mm. The wall thickness is 3 mm and the overall length is 260 mm. The adapter has an offset of 20 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
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cylinder inlet length 50 mm
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rectangle inlet length 100 mm
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thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀44 mm to 60×10 mm, thickness 3 mm (📦 #7414)

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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 60×5 mm, thickness 3 mm (📦 #9116)

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Parameter Value Unit
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Parameter Value Unit
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3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀40 mm and a rectangular section with inner dimensions 30×30 mm. The shell thickness is 2 mm and the overall length is 300 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
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cylinder inlet length 100 mm
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Parameter Value Unit
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cylinder inlet length 100 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×25 mm, thickness 3 mm + offset (📦 #2258)

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Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀76 mm and a rectangular section with inner dimensions 160×25 mm. The shell thickness is 3 mm and the overall length is 250 mm. The adapter has an offset of 25 mm along the Y axis and 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 50 mm
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File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀110 mm and a rectangular section with internal dimensions 110×85 mm. The shell thickness is 5 mm and the total length is 260 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 110 mm
cylinder inlet length 50 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀128 mm to 114×58 mm, thickness 3 mm (📦 #2416)

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3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀128 mm and a rectangular section with internal dimensions 114×58 mm. The shell thickness is 3 mm and the total length is 220 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 128 mm
cylinder inlet length 50 mm
rectangle internal length 114 mm
rectangle internal height 58 mm
rectangle inlet length 99 mm
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total length 220 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀101.5 mm to 120×20 mm, thickness 3 mm (📦 #5811)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀101.5 mm to 120×20 mm, thickness 3 mm
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀101.5 mm and a rectangular section with inner dimensions 120×20 mm. The shell thickness is 3 mm and the total length is 195 mm.
Parameter Value Unit
cylinder outer diameter 101.5 mm
cylinder inlet length 75 mm
rectangle internal length 120 mm
rectangle internal height 20 mm
rectangle inlet length 100 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀91 mm to 250×50 mm, thickness 3 mm + offset (📦 #6033)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀91 mm to 250×50 mm, thickness 3 mm + offset
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀91 mm and a rectangular section with inner dimensions 250×50 mm. The wall thickness is 3 mm and the total length is 300 mm. The adapter has an offset of 10 mm along the Y axis and 10 mm along the Z axis. A chamfer is applied on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 91 mm
cylinder inlet length 60 mm
rectangle internal length 250 mm
rectangle internal height 50 mm
rectangle inlet length 100 mm
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offset Y 10 mm
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thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 106×55 mm, thickness 3 mm (📦 #5110)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 106×55 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with internal dimensions 106×55 mm. The shell thickness is 3 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 75 mm
rectangle internal length 106 mm
rectangle internal height 55 mm
rectangle inlet length 75 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 150×30 mm, thickness 3 mm + offset (📦 #7954)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 150×30 mm, thickness 3 mm + offset
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀90 mm and a rectangular section with internal dimensions 150×30 mm. The shell thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 35 mm along the Y axis and 35 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 80 mm
rectangle internal length 150 mm
rectangle internal height 30 mm
rectangle inlet length 50 mm
offset Z 35 mm
offset Y 35 mm
total length 200 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀76.2 mm to 200×50.8 mm, thickness 4 mm + offset (📦 #2134)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀76.2 mm to 200×50.8 mm, thickness 4 mm + offset
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀76.2 mm and a rectangular section with internal dimensions 200×50.8 mm. The shell thickness is 4 mm and the overall length is 166 mm. The adapter has an offset of 20 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 76.2 mm
cylinder inlet length 76 mm
rectangle internal length 200 mm
rectangle internal height 50.8 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 20 mm
total length 166 mm
thickness 4 mm
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Round-to-Rectangular Tube Adapter STL file ⌀128 mm to 60×110 mm, thickness 3 mm + offset (📦 #1784)

1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 128 mm
cylinder inlet length 60 mm
rectangle internal length 60 mm
rectangle internal height 110 mm
rectangle inlet length 60 mm
offset Z 40 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×78 mm, thickness 3 mm (📦 #2582)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×78 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀76 mm and a rectangular section with inner dimensions 160×78 mm. The wall thickness is 3 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 76 mm
rectangle internal length 160 mm
rectangle internal height 78 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀25 mm to 40×40 mm, thickness 3 mm (📦 #3952)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀25 mm to 40×40 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀25 mm and a rectangular section with internal dimensions 40×40 mm. The wall thickness is 3 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 25 mm
cylinder inlet length 100 mm
rectangle internal length 40 mm
rectangle internal height 40 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 53×27 mm, thickness 4 mm (📦 #6224)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 53×27 mm, thickness 4 mm
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀76 mm and a rectangular section with internal dimensions 53×27 mm. The shell thickness is 4 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 76 mm
rectangle internal length 53 mm
rectangle internal height 27 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 4 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀92 mm to 200×30 mm, thickness 3 mm (📦 #4855)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀92 mm to 200×30 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀92 mm and a rectangular section with internal dimensions 200×30 mm. The shell thickness is 3 mm and the overall length is 220 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 92 mm
cylinder inlet length 100 mm
rectangle internal length 200 mm
rectangle internal height 30 mm
rectangle inlet length 35 mm
offset Z 0 mm
offset Y 0 mm
total length 220 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀66 mm to 70×25 mm, thickness 3 mm + offset (📦 #2475)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀66 mm to 70×25 mm, thickness 3 mm + offset
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀66 mm and a rectangular section with internal dimensions 70×25 mm. The shell thickness is 3 mm and the total length is 221.4 mm. The adapter has an offset of 10.7 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 66 mm
cylinder inlet length 50 mm
rectangle internal length 70 mm
rectangle internal height 25 mm
rectangle inlet length 100 mm
offset Z 10.7 mm
offset Y 0 mm
total length 221.4 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀110 mm to 120×75 mm, thickness 5 mm + offset (📦 #9112)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀110 mm to 120×75 mm, thickness 5 mm + offset
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀110 mm and a rectangular section with inner dimensions 120×75 mm. The wall thickness is 5 mm and the overall length is 170 mm. The adapter has an offset of 10 mm along the Z axis. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 110 mm
cylinder inlet length 50 mm
rectangle internal length 120 mm
rectangle internal height 75 mm
rectangle inlet length 100 mm
offset Z 10 mm
offset Y 0 mm
total length 170 mm
thickness 5 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 84×34 mm, thickness 4 mm (📦 #6225)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 84×34 mm, thickness 4 mm
Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀76 mm and a rectangular section with inner dimensions 84×34 mm. The shell thickness is 4 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 76 mm
rectangle internal length 84 mm
rectangle internal height 34 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 4 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 114×52 mm, thickness 3 mm (📦 #5188)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 114×52 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀81 mm and a rectangular section with inner dimensions 114×52 mm. The shell thickness is 3 mm and the total length is 170 mm.
Parameter Value Unit
cylinder outer diameter 81 mm
cylinder inlet length 100 mm
rectangle internal length 114 mm
rectangle internal height 52 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 170 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀72 mm to 118×77 mm, thickness 4 mm + offset (📦 #3135)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀72 mm to 118×77 mm, thickness 4 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀72 mm and a rectangular section with internal dimensions 118×77 mm. The shell thickness is 4 mm and the overall length is 147.2 mm. The adapter has an offset of 2 mm along the Y axis and 2 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 72 mm
cylinder inlet length 76 mm
rectangle internal length 118 mm
rectangle internal height 77 mm
rectangle inlet length 51 mm
offset Z 2 mm
offset Y 2 mm
total length 147.2 mm
thickness 4 mm
chamfer no chamfer