Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀34 mm to 80×80 mm, thickness 2 mm + offset 📦#4390

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3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀34 mm and a rectangular section with internal dimensions 80×80 mm. The wall thickness is 2 mm and the overall length is 100 mm. The adapter has an offset of 15 mm along the Y axis and 15 mm along the Z axis. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Generation date: 2025-12-06
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀34 mm to 80×80 mm, thickness 2 mm + offset

3D model download

Free
  • round-to-rectangular-adapter-d_model4390-nb0_dd{id}.stl : 1.7 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 34 mm (≃1.34 in)
#2 cylinder inlet length 10 mm (≃0.39 in)
#3 rectangle internal length 80 mm (≃3.15 in)
#4 rectangle internal height 80 mm (≃3.15 in)
#5 rectangle inlet length 10 mm (≃0.39 in)
#6 offset Z 15 mm (≃0.59 in)
#7 offset Y 15 mm (≃0.59 in)
#8 total length 100 mm (≃3 15/16 in)
#9 thickness 2 mm (≃0.08 in)
#10 chamfer chamfers on the outside
of the cylindrical tube
and on the inside of
the rectangular tube
Metadata Value
Cylinder internal diameter 30 mm (≃1 3/16 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 3D file ⌀34 mm to 80×80 mm, thickness 2 mm + offset (📦 #4392)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀34 mm to 80×80 mm, thickness 2 mm + offset
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Parameter Value Unit
cylinder outer diameter 34 mm
cylinder inlet length 10 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 10 mm
offset Z 15 mm
offset Y 15 mm
total length 50 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 50×100.5 mm, thickness 2 mm + offset (📦 #6815)

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Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀80 mm and a rectangular section with inner dimensions 50×100.5 mm. The wall thickness is 2 mm and the overall length is 90 mm. The adapter has an offset of 15 mm along the Y 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
cylinder outer diameter 80 mm
cylinder inlet length 20 mm
rectangle internal length 50 mm
rectangle internal height 100.5 mm
rectangle inlet length 5 mm
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Round-to-Rectangular Tube Adapter STL file ⌀34 mm to 80×80 mm, thickness 2 mm + offset (📦 #4388)

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Round-to-Rectangular Tube Adapter STL file ⌀34 mm to 80×80 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀34 mm and a rectangular section with inner dimensions 80×80 mm. The wall thickness is 2 mm and the overall length is 100 mm. The adapter has an offset of 15 mm along the Y axis and 15 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 34 mm
cylinder inlet length 20 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 50 mm
offset Z 15 mm
offset Y 15 mm
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Round-to-Rectangular Tube Adapter STL file ⌀21.9 mm to 80×80 mm, thickness 2 mm + offset (📦 #2896)

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Parameter Value Unit
cylinder outer diameter 21.9 mm
cylinder inlet length 30 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 35 mm
offset Z 7.5 mm
offset Y 7.5 mm
total length 90 mm
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Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 80×60 mm, thickness 2 mm + offset (📦 #7608)

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Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 25 mm
rectangle internal length 80 mm
rectangle internal height 60 mm
rectangle inlet length 9 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀94 mm to 45.5×45.5 mm, thickness 2 mm + offset (📦 #2802)

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Parameter Value Unit
cylinder outer diameter 94 mm
cylinder inlet length 20 mm
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Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 20 mm
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Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 20 mm
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rectangle internal height 144 mm
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Round-to-Rectangular Tube Adapter STL file ⌀84 mm to 31×100 mm, thickness 2 mm + offset (📦 #6821)

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Parameter Value Unit
cylinder outer diameter 84 mm
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Parameter Value Unit
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cylinder inlet length 20 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀77 mm to 80×50 mm, thickness 2 mm + offset (📦 #8623)

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Parameter Value Unit
cylinder outer diameter 77 mm
cylinder inlet length 15 mm
rectangle internal length 80 mm
rectangle internal height 50 mm
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Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 60×30 mm, thickness 2 mm + offset (📦 #2166)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 60×30 mm, thickness 2 mm + offset
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀60 mm and a rectangular section with inner dimensions 60×30 mm. The wall thickness is 2 mm and the total length is 80 mm. The adapter has an offset of 30 mm along the Y axis and 30 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
cylinder outer diameter 60 mm
cylinder inlet length 10 mm
rectangle internal length 60 mm
rectangle internal height 30 mm
rectangle inlet length 5 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀58 mm to 100×45 mm, thickness 2 mm (📦 #1907)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀58 mm to 100×45 mm, thickness 2 mm
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀58 mm and a rectangular section with internal dimensions 100×45 mm. The shell thickness is 2 mm and the overall length is 50 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 58 mm
cylinder inlet length 10 mm
rectangle internal length 100 mm
rectangle internal height 45 mm
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Round-to-Rectangular Tube Adapter STL file ⌀84 mm to 31×140 mm, thickness 2 mm + offset (📦 #6820)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀84 mm to 31×140 mm, thickness 2 mm + offset
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀84 mm and a rectangular section with internal dimensions 31×140 mm. The shell thickness is 2 mm and the overall length is 90 mm. The adapter has an offset of 25 mm along the Y 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 84 mm
cylinder inlet length 20 mm
rectangle internal length 31 mm
rectangle internal height 140 mm
rectangle inlet length 10 mm
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chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀48.5 mm to 120×120 mm, thickness 3 mm + offset (📦 #6615)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀48.5 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 ⌀48.5 mm and a rectangular section with inner dimensions 120×120 mm. The shell thickness is 3 mm and the overall length is 100 mm. The adapter has an offset of 21 mm along the Y 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 48.5 mm
cylinder inlet length 20 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀20 mm to 100×30 mm, thickness 3 mm + offset (📦 #1941)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀20 mm to 100×30 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀20 mm and a rectangular section with inner dimensions 100×30 mm. The wall thickness is 3 mm and the overall length is 70 mm. The adapter has an offset of 5 mm along the Y axis and 5 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
cylinder outer diameter 20 mm
cylinder inlet length 20 mm
rectangle internal length 100 mm
rectangle internal height 30 mm
rectangle inlet length 30 mm
offset Z 5 mm
offset Y 5 mm
total length 70 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 100×48 mm, thickness 2 mm + offset (📦 #1862)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 100×48 mm, thickness 2 mm + offset
Download this 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 100×48 mm. The shell thickness is 2 mm and the overall length is 100 mm. The adapter has an offset of 15 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 60 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 48 mm
rectangle inlet length 30 mm
offset Z 15 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀62 mm to 50×13 mm, thickness 2 mm + offset (📦 #6156)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀62 mm to 50×13 mm, thickness 2 mm + offset
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀62 mm and a rectangular section with inner dimensions 50×13 mm. The wall thickness is 2 mm and the overall length is 60 mm. The adapter has an offset of 17.5 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 62 mm
cylinder inlet length 15 mm
rectangle internal length 50 mm
rectangle internal height 13 mm
rectangle inlet length 10 mm
offset Z 17.5 mm
offset Y 0 mm
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thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 50×10 mm, thickness 2 mm + offset (📦 #1498)

1 object(s) - format STL (5.0/5) 3 vote(s)
Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 50×10 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀60 mm and a rectangular section with inner dimensions 50×10 mm. The wall thickness is 2 mm and the overall length is 60 mm. The adapter has an offset of 17.5 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 60 mm
cylinder inlet length 15 mm
rectangle internal length 50 mm
rectangle internal height 10 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 100×45 mm, thickness 2 mm + offset (📦 #1869)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 100×45 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀60 mm and a rectangular section with inner dimensions 100×45 mm. The wall thickness is 2 mm and the total length is 90 mm. The adapter has an offset of 15 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 60 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 45 mm
rectangle inlet length 30 mm
offset Z 15 mm
offset Y 0 mm
total length 90 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀32 mm to 55.1×20 mm, thickness 2 mm (📦 #1921)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀32 mm to 55.1×20 mm, thickness 2 mm
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀32 mm and a rectangular section with inner dimensions 55.1×20 mm. The wall thickness is 2 mm and the overall length is 55 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 32 mm
cylinder inlet length 15 mm
rectangle internal length 55.1 mm
rectangle internal height 20 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 55 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 104.5×145.4 mm, thickness 2 mm + offset (📦 #6809)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 104.5×145.4 mm, thickness 2 mm + offset
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀80 mm and a rectangular section with inner dimensions 104.5×145.4 mm. The shell thickness is 2 mm and the total length is 90 mm. The adapter has an offset of 2 mm along the Y axis and 2 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 80 mm
cylinder inlet length 20 mm
rectangle internal length 104.5 mm
rectangle internal height 145.4 mm
rectangle inlet length 10 mm
offset Z 2 mm
offset Y 2 mm
total length 90 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀20 mm to 58×34 mm, thickness 2 mm (📦 #7160)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀20 mm to 58×34 mm, thickness 2 mm
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀20 mm and a rectangular section with inner dimensions 58×34 mm. The shell thickness is 2 mm and the overall length is 60 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 25 mm
rectangle internal length 58 mm
rectangle internal height 34 mm
rectangle inlet length 11 mm
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 70×80 mm, thickness 2 mm (📦 #7643)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 70×80 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 inner dimensions 70×80 mm. The wall thickness is 2 mm and the overall length is 60 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 75 mm
cylinder inlet length 25 mm
rectangle internal length 70 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
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 106×50 mm, thickness 3 mm + offset (📦 #1886)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 106×50 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀81 mm and a rectangular section with internal dimensions 106×50 mm. The shell thickness is 3 mm and the overall length is 100 mm. The adapter has an offset of 25 mm along the Y axis and 25 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 81 mm
cylinder inlet length 20 mm
rectangle internal length 106 mm
rectangle internal height 50 mm
rectangle inlet length 30 mm
offset Z 25 mm
offset Y 25 mm
total length 100 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 65×65 mm, thickness 2 mm (📦 #2974)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 65×65 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀60 mm and a rectangular section with inner dimensions 65×65 mm. The shell thickness is 2 mm and the overall length is 64 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 60 mm
cylinder inlet length 30 mm
rectangle internal length 65 mm
rectangle internal height 65 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 64 mm
thickness 2 mm
chamfer chamfers on ...