Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 84×80 mm, thickness 2 mm 📦#7627

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3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀75 mm and a rectangular section with internal dimensions 84×80 mm. The wall thickness is 2 mm and the total length is 145 mm.
Generation date: 2026-03-05
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 84×80 mm, thickness 2 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model7627-nb0_dd{id}.stl : 2.3 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 75 mm (≃2 15/16 in)
#2 cylinder inlet length 25 mm (≃0.98 in)
#3 rectangle internal length 84 mm (≃3 5/16 in)
#4 rectangle internal height 80 mm (≃3.15 in)
#5 rectangle inlet length 100 mm (≃3 15/16 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 145 mm (≃5.71 in)
#9 thickness 2 mm (≃0.08 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 71 mm (≃2.80 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 85 mm
rectangle internal height 85 mm
rectangle inlet length 85 mm
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offset Y 0 mm
total length 150 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 100×50 mm, thickness 2 mm (📦 #3061)

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Parameter Value Unit
cylinder outer diameter 90 mm
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Round-to-Rectangular Tube Adapter STL file ⌀70 mm to 70×90 mm, thickness 2 mm + offset (📦 #2046)

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Round-to-Rectangular Tube Adapter STL file ⌀70 mm to 70×90 mm, thickness 2 mm + offset
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Parameter Value Unit
cylinder outer diameter 70 mm
cylinder inlet length 50 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀27 mm to 33×30 mm, thickness 2 mm (📦 #2477)

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Parameter Value Unit
cylinder outer diameter 27 mm
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Parameter Value Unit
cylinder outer diameter 100 mm
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Parameter Value Unit
cylinder outer diameter 95 mm
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Parameter Value Unit
cylinder outer diameter 126 mm
cylinder inlet length 30 mm
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cylinder inlet length 50 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
total length 150 mm
thickness 3 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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Round-to-Rectangular Tube Adapter STL 3D file ⌀25 mm to 125×25 mm, thickness 2 mm (📦 #2366)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀25 mm to 125×25 mm, thickness 2 mm
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀25 mm and a rectangular section with internal dimensions 125×25 mm. The wall thickness is 2 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 25 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
rectangle internal length 100 mm
rectangle internal height 30 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 94.6×73 mm, thickness 2 mm + offset (📦 #3311)

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Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀106 mm and a rectangular section with inner dimensions 94.6×73 mm. The shell thickness is 2 mm and the total length is 200 mm. The adapter has an offset of 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 106 mm
cylinder inlet length 50 mm
rectangle internal length 94.6 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
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rectangle internal height 30 mm
rectangle inlet length 100 mm
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total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 100.5×73.5 mm, thickness 2 mm (📦 #9080)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 100.5×73.5 mm, thickness 2 mm
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀80 mm and a rectangular section with internal dimensions 100.5×73.5 mm. The wall thickness is 2 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 50 mm
rectangle internal length 100.5 mm
rectangle internal height 73.5 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀126 mm to 30×63.5 mm, thickness 3 mm + offset (📦 #2122)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀126 mm to 30×63.5 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀126 mm and a rectangular section with internal dimensions 30×63.5 mm. The wall thickness is 3 mm and the total length is 150 mm. The adapter has an offset of 3 mm along the Y axis and 20.0 mm along the Z axis.
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 20.0 mm
offset Y 3 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀21 mm to 23×23 mm, thickness 3 mm (📦 #6983)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀21 mm to 23×23 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀21 mm and a rectangular section with internal dimensions 23×23 mm. The wall thickness is 3 mm and the total length is 136 mm.
Parameter Value Unit
cylinder outer diameter 21 mm
cylinder inlet length 5 mm
rectangle internal length 23 mm
rectangle internal height 23 mm
rectangle inlet length 98 mm
offset Z 0 mm
offset Y 0 mm
total length 136 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 120×120 mm, thickness 3 mm + offset (📦 #1799)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 120×120 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀120 mm and a rectangular section with internal dimensions 120×120 mm. The shell thickness is 3 mm and the total length is 200 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 120 mm
cylinder inlet length 50 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 100 mm
offset Z 2 mm
offset Y 2 mm
total length 200 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 105×50 mm, thickness 2 mm (📦 #1772)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 105×50 mm, thickness 2 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀80 mm and a rectangular section with inner dimensions 105×50 mm. The wall thickness is 2 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 50 mm
rectangle internal length 105 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀106 mm to 92.6×71 mm, thickness 2 mm + offset (📦 #3315)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀106 mm to 92.6×71 mm, thickness 2 mm + offset
Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀106 mm and a rectangular section with internal dimensions 92.6×71 mm. The shell thickness is 2 mm and the overall length is 170 mm. The adapter has an offset of 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 106 mm
cylinder inlet length 50 mm
rectangle internal length 92.6 mm
rectangle internal height 71 mm
rectangle inlet length 70 mm
offset Z 25 mm
offset Y 0 mm
total length 170 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀101 mm to 170×124.5 mm, thickness 3 mm + offset (📦 #7359)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀101 mm to 170×124.5 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀101 mm and a rectangular section with internal dimensions 170×124.5 mm. The wall thickness is 3 mm and the total length is 138 mm. The adapter has an offset of 11 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 101 mm
cylinder inlet length 25 mm
rectangle internal length 170 mm
rectangle internal height 124.5 mm
rectangle inlet length 83 mm
offset Z 0 mm
offset Y 11 mm
total length 138 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀101 mm to 170×124.5 mm, thickness 3 mm + offset (📦 #7360)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀101 mm to 170×124.5 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀101 mm and a rectangular section with inner dimensions 170×124.5 mm. The shell thickness is 3 mm and the total length is 130.7 mm. The adapter has an offset of 11 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 101 mm
cylinder inlet length 25 mm
rectangle internal length 170 mm
rectangle internal height 124.5 mm
rectangle inlet length 83 mm
offset Z 0 mm
offset Y 11 mm
total length 130.7 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀20 mm to 37×16 mm, thickness 2 mm (📦 #8237)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀20 mm to 37×16 mm, thickness 2 mm
Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀20 mm and a rectangular section with inner dimensions 37×16 mm. The shell thickness is 2 mm and the total length is 110 mm.
Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 30 mm
rectangle internal length 37 mm
rectangle internal height 16 mm
rectangle inlet length 60 mm
offset Z 0 mm
offset Y 0 mm
total length 110 mm
thickness 2 mm
chamfer no chamfer

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