Custom Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 230×14 mm, thickness 2 mm + offset 📦#8651

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Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀80 mm and a rectangular section with inner dimensions 230×14 mm. The shell thickness is 2 mm and the total length is 300 mm. The adapter has an offset of 10.2 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.
Generation date: 2026-04-28
3D Model Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 230×14 mm, thickness 2 mm + offset

3D model download

Free
  • round-to-rectangular-adapter-d_model8651-nb0_dd{id}.stl : 1.2 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 80 mm (≃3.15 in)
#2 cylinder inlet length 30 mm (≃1 3/16 in)
#3 rectangle internal length 230 mm (≃9 1/16 in)
#4 rectangle internal height 14 mm (≃9/16 in)
#5 rectangle inlet length 8 mm (≃5/16 in)
#6 offset Z 10.2 mm (≃0.40 in)
#7 offset Y 0 mm (0 in)
#8 total length 300 mm (≃11 13/16 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 76 mm (≃3 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 

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Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 30 mm
rectangle internal length 220 mm
rectangle internal height 14 mm
rectangle inlet length 8 mm
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Parameter Value Unit
cylinder outer diameter 77.5 mm
cylinder inlet length 30 mm
rectangle internal length 220 mm
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Round-to-Rectangular Tube Adapter STL file ⌀79.5 mm to 220×30 mm, thickness 2 mm + offset (📦 #8656)

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Round-to-Rectangular Tube Adapter STL file ⌀79.5 mm to 220×30 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀79.5 mm and a rectangular section with internal dimensions 220×30 mm. The wall thickness is 2 mm and the total length is 200 mm. The adapter has an offset of 10.2 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 79.5 mm
cylinder inlet length 30 mm
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Parameter Value Unit
cylinder outer diameter 99.5 mm
cylinder inlet length 30 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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cylinder inlet length 30 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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Parameter Value Unit
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1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 100 mm
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1 object(s) - format STL
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File in STL format of a round-to-rectangular adapter with an external diameter of ⌀152.4 mm and a rectangular section with internal dimensions 220×20 mm. The shell thickness is 3 mm and the overall length is 250 mm. A chamfer is applied on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 152.4 mm
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Round-to-Rectangular Tube Adapter STL file ⌀92 mm to 228×80 mm, thickness 2 mm + offset (📦 #1809)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀92 mm to 228×80 mm, thickness 2 mm + offset
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀92 mm and a rectangular section with internal dimensions 228×80 mm. The wall thickness is 2 mm and the overall length is 235 mm. The adapter has an offset of 60 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 92 mm
cylinder inlet length 30 mm
rectangle internal length 228 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
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offset Y 0 mm
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Round-to-Rectangular Tube Adapter STL file ⌀154.4 mm to 220×20 mm, thickness 3 mm (📦 #4930)

1 object(s) - format STL
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Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀154.4 mm and a rectangular section with inner dimensions 220×20 mm. The shell thickness is 3 mm and the overall length is 250 mm. A chamfer is applied on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 154.4 mm
cylinder inlet length 35 mm
rectangle internal length 220 mm
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1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 30 mm
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rectangle internal height 15 mm
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thickness 2 mm
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1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 25 mm
rectangle inlet length 30 mm
offset Z 60 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀32 mm to 200×70 mm, thickness 2 mm (📦 #7555)

1 object(s) - format STL
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Download this 3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀32 mm and a rectangular section with inner dimensions 200×70 mm. The wall thickness is 2 mm and the total length is 125 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 50 mm
rectangle internal length 200 mm
rectangle internal height 70 mm
rectangle inlet length 30 mm
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offset Y 0 mm
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thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 175×15 mm, thickness 2 mm + offset (📦 #2097)

1 object(s) - format STL
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Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 175×15 mm. The shell thickness is 2 mm and the overall length is 200 mm. The adapter has an offset of 60 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 100 mm
cylinder inlet length 30 mm
rectangle internal length 175 mm
rectangle internal height 15 mm
rectangle inlet length 30 mm
offset Z 60 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀124 mm to 250×100 mm, thickness 2 mm (📦 #7367)

1 object(s) - format STL
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Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀124 mm and a rectangular section with inner dimensions 250×100 mm. The shell thickness is 2 mm and the total length is 250 mm.
Parameter Value Unit
cylinder outer diameter 124 mm
cylinder inlet length 40 mm
rectangle internal length 250 mm
rectangle internal height 100 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 250 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×25 mm, thickness 3 mm + offset (📦 #2058)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×25 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀76 mm and a rectangular section with inner dimensions 160×25 mm. The shell thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 30 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
offset Z 30 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer