Custom Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 102×102 mm, thickness 3 mm 📦#1759

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3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀75 mm and a rectangular section with inner dimensions 102×102 mm. The wall thickness is 3 mm and the total length is 68 mm.
Generation date: 2025-09-12
3D Model Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 102×102 mm, thickness 3 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model1759-nb0_dd{id}.stl : 4 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 30 mm (≃1 3/16 in)
#3 rectangle internal length 102 mm (≃4.02 in)
#4 rectangle internal height 102 mm (≃4.02 in)
#5 rectangle inlet length 18 mm (≃0.71 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 68 mm (≃2 11/16 in)
#9 thickness 3 mm (≃1/8 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 69 mm (≃2.72 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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To search for a model based on your own parameters, go to the template page Round to rectangular adapter 

Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 105×105 mm, thickness 3 mm (📦 #1748)

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Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 105×105 mm, thickness 3 mm
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 105×105 mm. The shell thickness is 3 mm and the overall length is 80 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 30 mm
rectangle internal length 105 mm
rectangle internal height 105 mm
rectangle inlet length 19 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 105×105 mm, thickness 3 mm (📦 #1746)

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Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 105×105 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀75 mm and a rectangular section with internal dimensions 105×105 mm. The shell thickness is 3 mm and the overall length is 80 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 30 mm
rectangle internal length 105 mm
rectangle internal height 105 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 120×120 mm, thickness 3 mm (📦 #6451)

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Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 120×120 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀60 mm and a rectangular section with inner dimensions 120×120 mm. The shell thickness is 3 mm and the total length is 80 mm.
Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 30 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 17 mm
offset Z 0 mm
offset Y 0 mm
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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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Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 92×92 mm, thickness 3 mm
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 92×92 mm. The wall thickness is 3 mm and the total length is 90 mm.
Parameter Value Unit
cylinder outer diameter 76 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
offset Z 0 mm
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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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 length 77 mm
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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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3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀90 mm and a rectangular section with inner dimensions 60×60 mm. The wall thickness is 3 mm and the overall length is 60 mm.
Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 20 mm
rectangle internal length 60 mm
rectangle internal height 60 mm
rectangle inlet length 20 mm
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offset Y 0 mm
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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 80×80 mm, thickness 3 mm (📦 #2123)

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Parameter Value Unit
cylinder outer diameter 100 mm
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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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Parameter Value Unit
cylinder outer diameter 96 mm
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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
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Parameter Value Unit
cylinder outer diameter 48.5 mm
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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
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 106 mm
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rectangle internal height 55 mm
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Round-to-Rectangular Tube Adapter STL file ⌀96 mm to 67×58 mm, thickness 3 mm (📦 #10040)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀96 mm to 67×58 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀96 mm and a rectangular section with internal dimensions 67×58 mm. The shell thickness is 3 mm and the overall length is 70 mm.
Parameter Value Unit
cylinder outer diameter 96 mm
cylinder inlet length 18 mm
rectangle internal length 67 mm
rectangle internal height 58 mm
rectangle inlet length 32 mm
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offset Y 0 mm
total length 70 mm
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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 100×50 mm, thickness 3 mm + offset (📦 #1754)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 100×50 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an outer 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.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 20 mm
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offset Y 3 mm
total length 100 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀98 mm to 155×105 mm, thickness 3 mm (📦 #8640)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀98 mm to 155×105 mm, thickness 3 mm
3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀98 mm and a rectangular section with internal dimensions 155×105 mm. The wall thickness is 3 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 98 mm
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rectangle internal height 105 mm
rectangle inlet length 39 mm
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offset Y 0 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 120×120 mm, thickness 3 mm (📦 #6452)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 120×120 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀60 mm and a rectangular section with internal dimensions 120×120 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 30 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 17 mm
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offset Y 0 mm
total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 84×80 mm, thickness 2 mm (📦 #7610)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 84×80 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 internal dimensions 84×80 mm. The shell thickness is 2 mm and the overall length is 60 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 25 mm
rectangle internal length 84 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
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Round-to-Rectangular Tube Adapter STL file ⌀108 mm to 25×76 mm, thickness 3 mm (📦 #1749)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀108 mm to 25×76 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀108 mm and a rectangular section with internal dimensions 25×76 mm. The shell thickness is 3 mm and the total length is 78 mm.
Parameter Value Unit
cylinder outer diameter 108 mm
cylinder inlet length 26 mm
rectangle internal length 25 mm
rectangle internal height 76 mm
rectangle inlet length 26 mm
offset Z 0 mm
offset Y 0 mm
total length 78 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 110×80 mm, thickness 2 mm (📦 #3892)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 110×80 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀80 mm and a rectangular section with inner dimensions 110×80 mm. The shell thickness is 2 mm and the overall length is 60 mm.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 20 mm
rectangle internal length 110 mm
rectangle internal height 80 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀40 mm to 100×100 mm, thickness 3 mm + offset (📦 #2016)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀40 mm to 100×100 mm, thickness 3 mm + offset
Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀40 mm and a rectangular section with inner dimensions 100×100 mm. The shell thickness is 3 mm and the total length is 100 mm. The adapter has an offset of 1 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 40 mm
cylinder inlet length 10 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 9 mm
offset Z 0 mm
offset Y 1 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀119 mm to 114×79 mm, thickness 3 mm + offset (📦 #2248)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀119 mm to 114×79 mm, thickness 3 mm + offset
Download this 3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀119 mm and a rectangular section with inner dimensions 114×79 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 10.5 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 119 mm
cylinder inlet length 30 mm
rectangle internal length 114 mm
rectangle internal height 79 mm
rectangle inlet length 30 mm
offset Z 10.5 mm
offset Y 3 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀65 mm to 65×120 mm, thickness 3 mm (📦 #9910)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀65 mm to 65×120 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀65 mm and a rectangular section with inner dimensions 65×120 mm. The shell thickness is 3 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 65 mm
cylinder inlet length 5 mm
rectangle internal length 65 mm
rectangle internal height 120 mm
rectangle inlet length 10 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 104×104 mm, thickness 2 mm (📦 #7935)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 104×104 mm, thickness 2 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀78 mm and a rectangular section with internal dimensions 104×104 mm. The shell thickness is 2 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 15 mm
rectangle internal length 104 mm
rectangle internal height 104 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀78 mm to 100×100 mm, thickness 2 mm (📦 #7936)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀78 mm to 100×100 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀78 mm and a rectangular section with inner dimensions 100×100 mm. The wall thickness is 2 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 15 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀104 mm to 104×104 mm, thickness 2 mm (📦 #4157)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀104 mm to 104×104 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀104 mm and a rectangular section with inner dimensions 104×104 mm. The shell thickness is 2 mm and the total length is 80 mm.
Parameter Value Unit
cylinder outer diameter 104 mm
cylinder inlet length 20 mm
rectangle internal length 104 mm
rectangle internal height 104 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 50×84 mm, thickness 2 mm (📦 #7644)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 50×84 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀75 mm and a rectangular section with inner dimensions 50×84 mm. The wall thickness is 2 mm and the overall length is 60 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 25 mm
rectangle internal length 50 mm
rectangle internal height 84 mm
rectangle inlet length 10 mm
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀126.0 mm to 120×70 mm, thickness 3 mm (📦 #2232)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀126.0 mm to 120×70 mm, thickness 3 mm
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀126.0 mm and a rectangular section with inner dimensions 120×70 mm. The wall thickness is 3 mm and the overall length is 50 mm.
Parameter Value Unit
cylinder outer diameter 126.0 mm
cylinder inlet length 15 mm
rectangle internal length 120 mm
rectangle internal height 70 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 3 mm
chamfer no chamfer