Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀88 mm to 80×60 mm, thickness 4 mm + offset 📦#8561

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Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀88 mm and a rectangular section with internal dimensions 80×60 mm. The wall thickness is 4 mm and the total length is 130 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.
Generation date: 2026-04-21
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀88 mm to 80×60 mm, thickness 4 mm + offset

3D model download

Free
  • round-to-rectangular-adapter-d_model8561-nb0_dd{id}.stl : 2.2 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 88 mm (≃3.46 in)
#2 cylinder inlet length 30 mm (≃1 3/16 in)
#3 rectangle internal length 80 mm (≃3.15 in)
#4 rectangle internal height 60 mm (≃2 3/8 in)
#5 rectangle inlet length 80 mm (≃3.15 in)
#6 offset Z 10 mm (≃0.39 in)
#7 offset Y 0 mm (0 in)
#8 total length 130 mm (≃5 1/8 in)
#9 thickness 4 mm (≃0.16 in)
#10 chamfer chamfer on the outside
of the cylindrical tube
Metadata Value
Cylinder internal diameter 80 mm (≃3.15 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 78 mm
cylinder inlet length 15 mm
rectangle internal length 100 mm
rectangle internal height 51 mm
rectangle inlet length 71 mm
offset Z 13 mm
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Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 15 mm
rectangle internal length 104.5 mm
rectangle internal height 50.8 mm
rectangle inlet length 71 mm
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Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 100×55 mm, thickness 4 mm + offset (📦 #6895)

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Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 100×55 mm, thickness 4 mm + offset
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Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 15 mm
rectangle internal length 100 mm
rectangle internal height 55 mm
rectangle inlet length 64 mm
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offset Y 0 mm
total length 120 mm
thickness 4 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 50×50 mm, thickness 3 mm (📦 #2954)

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Parameter Value Unit
cylinder outer diameter 106 mm
cylinder inlet length 15 mm
rectangle internal length 50 mm
rectangle internal height 50 mm
rectangle inlet length 60 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀78 mm to 100×55 mm, thickness 4 mm + offset (📦 #6894)

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Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 15 mm
rectangle internal length 100 mm
rectangle internal height 55 mm
rectangle inlet length 64 mm
offset Z 15 mm
offset Y 0 mm
total length 120 mm
thickness 4 mm
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Round-to-Rectangular Tube Adapter STL file ⌀126 mm to 30×63.5 mm, thickness 3 mm (📦 #5405)

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Parameter Value Unit
cylinder outer diameter 126 mm
cylinder inlet length 30 mm
rectangle internal length 30 mm
rectangle internal height 63.5 mm
rectangle inlet length 80 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 ⌀150 mm to 100×49 mm, thickness 4 mm + offset (📦 #6588)

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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 3D file ⌀70 mm to 100×30 mm, thickness 3 mm (📦 #4774)

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Parameter Value Unit
cylinder outer diameter 70 mm
cylinder inlet length 25 mm
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Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 100×51 mm, thickness 4 mm + offset (📦 #6874)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 100×51 mm, thickness 4 mm + offset
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀78 mm and a rectangular section with internal dimensions 100×51 mm. The shell thickness is 4 mm and the overall length is 99 mm. The adapter has an offset of 10 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 78 mm
cylinder inlet length 15 mm
rectangle internal length 100 mm
rectangle internal height 51 mm
rectangle inlet length 64 mm
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Parameter Value Unit
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cylinder inlet length 30 mm
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Parameter Value Unit
cylinder outer diameter 126 mm
cylinder inlet length 30 mm
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offset Y 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 100×47 mm, thickness 4 mm + offset (📦 #6873)

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Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 100×47 mm, thickness 4 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀78 mm and a rectangular section with inner dimensions 100×47 mm. The shell thickness is 4 mm and the total length is 99 mm. The adapter has an offset of 10 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 78 mm
cylinder inlet length 15 mm
rectangle internal length 100 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀133 mm to 81×56 mm, thickness 4 mm (📦 #7818)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀133 mm to 81×56 mm, thickness 4 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀133 mm and a rectangular section with internal dimensions 81×56 mm. The wall thickness is 4 mm and the total length is 100 mm. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 133 mm
cylinder inlet length 30 mm
rectangle internal length 81 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀78 mm to 100×55 mm, thickness 4 mm + offset (📦 #6893)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀78 mm to 100×55 mm, thickness 4 mm + offset
Download this model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀78 mm and a rectangular section with inner dimensions 100×55 mm. The shell thickness is 4 mm and the overall length is 120 mm. The adapter has an offset of 20.5 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 78 mm
cylinder inlet length 15 mm
rectangle internal length 100 mm
rectangle internal height 55 mm
rectangle inlet length 64 mm
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offset Y 0 mm
total length 120 mm
thickness 4 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 100×51 mm, thickness 4 mm + offset (📦 #6892)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 100×51 mm, thickness 4 mm + offset
3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀78 mm and a rectangular section with internal dimensions 100×51 mm. The shell thickness is 4 mm and the overall length is 120 mm. The adapter has an offset of 20.5 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 78 mm
cylinder inlet length 15 mm
rectangle internal length 100 mm
rectangle internal height 51 mm
rectangle inlet length 64 mm
offset Z 20.5 mm
offset Y 0 mm
total length 120 mm
thickness 4 mm
chamfer chamfers on ...

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
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Round-to-Rectangular Tube Adapter STL file ⌀70 mm to 100×30 mm, thickness 3 mm (📦 #4773)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀70 mm to 100×30 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀70 mm and a rectangular section with inner dimensions 100×30 mm. The shell thickness is 3 mm and the total length is 150 mm. A chamfer is applied on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 70 mm
cylinder inlet length 15 mm
rectangle internal length 100 mm
rectangle internal height 30 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL 3D file ⌀79 mm to 121×56 mm, thickness 4 mm + offset (📦 #7534)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀79 mm to 121×56 mm, thickness 4 mm + offset
Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀79 mm and a rectangular section with internal dimensions 121×56 mm. The shell thickness is 4 mm and the total length is 90 mm. The adapter has an offset of 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 79 mm
cylinder inlet length 35 mm
rectangle internal length 121 mm
rectangle internal height 56 mm
rectangle inlet length 35 mm
offset Z 10 mm
offset Y 0 mm
total length 90 mm
thickness 4 mm
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Round-to-Rectangular Tube Adapter STL file ⌀105 mm to 150×50 mm, thickness 3 mm + offset (📦 #1872)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀105 mm to 150×50 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀105 mm and a rectangular section with inner dimensions 150×50 mm. The shell thickness is 3 mm and the overall length is 100 mm. The adapter has an offset of 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 105 mm
cylinder inlet length 30 mm
rectangle internal length 150 mm
rectangle internal height 50 mm
rectangle inlet length 50 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 ⌀79 mm to 121×56 mm, thickness 4 mm (📦 #7533)

1 object(s) - format STL
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3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀79 mm and a rectangular section with internal dimensions 121×56 mm. The shell thickness is 4 mm and the total length is 90 mm.
Parameter Value Unit
cylinder outer diameter 79 mm
cylinder inlet length 35 mm
rectangle internal length 121 mm
rectangle internal height 56 mm
rectangle inlet length 35 mm
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offset Y 0 mm
total length 90 mm
thickness 4 mm
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1 object(s) - format STL
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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 ⌀40 mm to 43×43 mm, thickness 4 mm (📦 #8538)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 43×43 mm, thickness 4 mm
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Parameter Value Unit
cylinder outer diameter 40 mm
cylinder inlet length 40 mm
rectangle internal length 43 mm
rectangle internal height 43 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 4 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀64.4 mm to 76.2×50 mm, thickness 3 mm (📦 #3492)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀64.4 mm to 76.2×50 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀64.4 mm and a rectangular section with inner dimensions 76.2×50 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 64.4 mm
cylinder inlet length 50 mm
rectangle internal length 76.2 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

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Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀57 mm and a rectangular section with internal dimensions 36×25.6 mm. The wall thickness is 3 mm and the overall length is 96 mm.
Parameter Value Unit
cylinder outer diameter 57 mm
cylinder inlet length 25 mm
rectangle internal length 36 mm
rectangle internal height 25.6 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 96 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 100×30 mm, thickness 3 mm + offset (📦 #5664)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 100×30 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 inner dimensions 100×30 mm. The shell thickness is 3 mm and the overall length is 100 mm. The adapter has an offset of 10 mm along the Z axis.
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
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀101.6 mm to 152.4×57 mm, thickness 3 mm (📦 #8811)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀101.6 mm to 152.4×57 mm, thickness 3 mm
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀101.6 mm and a rectangular section with internal dimensions 152.4×57 mm. The wall thickness is 3 mm and the total length is 152.4 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 101.6 mm
cylinder inlet length 51 mm
rectangle internal length 152.4 mm
rectangle internal height 57 mm
rectangle inlet length 51 mm
offset Z 0 mm
offset Y 0 mm
total length 152.4 mm
thickness 3 mm
chamfer chamfer on t...