Custom Round-to-Rectangular Tube Adapter STL file ⌀74 mm to 128×30 mm, thickness 4 mm 📦#3082

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3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀74 mm and a rectangular section with internal dimensions 128×30 mm. The shell thickness is 4 mm and the total length is 80 mm.
Generation date: 2025-11-05
3D Model Round-to-Rectangular Tube Adapter STL file ⌀74 mm to 128×30 mm, thickness 4 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model3082-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 74 mm (≃2.91 in)
#2 cylinder inlet length 20 mm (≃0.79 in)
#3 rectangle internal length 128 mm (≃5.04 in)
#4 rectangle internal height 30 mm (≃1 3/16 in)
#5 rectangle inlet length 20 mm (≃0.79 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 80 mm (≃3.15 in)
#9 thickness 4 mm (≃0.16 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 66 mm (≃2.60 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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Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 128×30 mm, thickness 4 mm (📦 #2437)

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Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 128×30 mm, thickness 4 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀78 mm and a rectangular section with internal dimensions 128×30 mm. The shell thickness is 4 mm and the total length is 80 mm.
Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 20 mm
rectangle internal length 128 mm
rectangle internal height 30 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 4 mm
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Round-to-Rectangular Tube Adapter STL file ⌀79 mm to 121×56 mm, thickness 4 mm (📦 #7533)

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Parameter Value Unit
cylinder outer diameter 79 mm
cylinder inlet length 35 mm
rectangle internal length 121 mm
rectangle internal height 56 mm
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offset Y 0 mm
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thickness 4 mm
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Round-to-Rectangular Tube Adapter STL file ⌀94 mm to 77×70 mm, thickness 4 mm (📦 #10035)

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Round-to-Rectangular Tube Adapter STL file ⌀94 mm to 77×70 mm, thickness 4 mm
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Parameter Value Unit
cylinder outer diameter 94 mm
cylinder inlet length 18 mm
rectangle internal length 77 mm
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rectangle inlet length 12 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀79 mm to 121×56 mm, thickness 4 mm + offset (📦 #7534)

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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
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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 100×50 mm, thickness 3 mm + offset (📦 #1754)

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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 100×50 mm, thickness 3 mm + offset
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Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
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Parameter Value Unit
cylinder outer diameter 60 mm
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Parameter Value Unit
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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 60×60 mm, thickness 3 mm (📦 #1563)

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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 92×92 mm, thickness 3 mm (📦 #6516)

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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀96 mm to 70×61 mm, thickness 3 mm (📦 #10038)

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Round-to-Rectangular Tube Adapter STL file ⌀96 mm to 70×61 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀96 mm and a rectangular section with inner dimensions 70×61 mm. The shell thickness is 3 mm and the overall length is 50 mm.
Parameter Value Unit
cylinder outer diameter 96 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 80×80 mm, thickness 3 mm (📦 #1527)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 80×80 mm, thickness 3 mm
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 80×80 mm. The shell thickness is 3 mm and the overall length is 50 mm.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 15 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 15 mm
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offset Y 0 mm
total length 50 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀99 mm to 77×70 mm, thickness 3 mm (📦 #10036)

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Round-to-Rectangular Tube Adapter STL file ⌀99 mm to 77×70 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀99 mm and a rectangular section with internal dimensions 77×70 mm. The shell thickness is 3 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 99 mm
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rectangle internal height 70 mm
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offset Y 0 mm
total length 50 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×25 mm, thickness 3 mm + offset (📦 #2059)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×25 mm, thickness 3 mm + offset
Download this 3D 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 160×25 mm. The shell thickness is 3 mm and the overall length is 100 mm. The adapter has an offset of 20 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 20 mm
rectangle internal length 160 mm
rectangle internal height 25 mm
rectangle inlet length 20 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀85 mm to 215×25 mm, thickness 4 mm (📦 #7565)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀85 mm to 215×25 mm, thickness 4 mm
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀85 mm and a rectangular section with inner dimensions 215×25 mm. The wall thickness is 4 mm and the total length is 140 mm.
Parameter Value Unit
cylinder outer diameter 85 mm
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rectangle inlet length 35 mm
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offset Y 0 mm
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thickness 4 mm
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Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 60×30 mm, thickness 3 mm (📦 #1474)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 60×30 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀80 mm and a rectangular section with internal dimensions 60×30 mm. The wall thickness is 3 mm and the overall length is 90 mm.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 30 mm
rectangle internal length 60 mm
rectangle internal height 30 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 90 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 108×52 mm, thickness 3 mm + offset (📦 #4012)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 108×52 mm, thickness 3 mm + offset
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀81 mm and a rectangular section with inner dimensions 108×52 mm. The wall thickness is 3 mm and the total length is 60 mm. The adapter has an offset of 10 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 81 mm
cylinder inlet length 15 mm
rectangle internal length 108 mm
rectangle internal height 52 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 10 mm
total length 60 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 80×80 mm, thickness 3 mm (📦 #2123)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 80×80 mm, thickness 3 mm
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 80×80 mm. The shell thickness is 3 mm and the overall length is 65 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 15 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 65 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀65 mm to 56×70 mm, thickness 3 mm (📦 #8712)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀65 mm to 56×70 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀65 mm and a rectangular section with inner dimensions 56×70 mm. The shell thickness is 3 mm and the total length is 75 mm.
Parameter Value Unit
cylinder outer diameter 65 mm
cylinder inlet length 20 mm
rectangle internal length 56 mm
rectangle internal height 70 mm
rectangle inlet length 35 mm
offset Z 0 mm
offset Y 0 mm
total length 75 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 121×70 mm, thickness 3 mm (📦 #9904)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 121×70 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀75 mm and a rectangular section with inner dimensions 121×70 mm. The wall thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 20 mm
rectangle internal length 121 mm
rectangle internal height 70 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 100×50 mm, thickness 3 mm + offset (📦 #1966)

1 object(s) - format STL (5.0/5) 1 vote(s)
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 100×50 mm, thickness 3 mm + offset
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 100×50 mm. The shell thickness is 3 mm and the total length is 100 mm. The adapter has an offset of 3 mm along the Y axis and 3 mm along the Z axis. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 30 mm
offset Z 3 mm
offset Y 3 mm
total length 100 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀73 mm to 122×72 mm, thickness 3 mm (📦 #9882)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀73 mm to 122×72 mm, thickness 3 mm
Download this 3D 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 122×72 mm. The shell thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 73 mm
cylinder inlet length 20 mm
rectangle internal length 122 mm
rectangle internal height 72 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 122×72 mm, thickness 3 mm (📦 #9880)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 122×72 mm, thickness 3 mm
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 122×72 mm. The wall thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 19 mm
rectangle internal length 122 mm
rectangle internal height 72 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀71 mm to 122×72 mm, thickness 3 mm (📦 #9884)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀71 mm to 122×72 mm, thickness 3 mm
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀71 mm and a rectangular section with inner dimensions 122×72 mm. The wall thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 71 mm
cylinder inlet length 20 mm
rectangle internal length 122 mm
rectangle internal height 72 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer