Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀25 mm to 40×40 mm, thickness 3 mm 📦#3952

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Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀25 mm and a rectangular section with internal dimensions 40×40 mm. The wall thickness is 3 mm and the total length is 200 mm.
Generation date: 2025-11-28
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀25 mm to 40×40 mm, thickness 3 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model3952-nb0_dd{id}.stl : 832.4 Ko
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 25 mm (≃0.98 in)
#2 cylinder inlet length 100 mm (≃3 15/16 in)
#3 rectangle internal length 40 mm (≃1 9/16 in)
#4 rectangle internal height 40 mm (≃1 9/16 in)
#5 rectangle inlet length 50 mm (≃1.97 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 200 mm (≃7 7/8 in)
#9 thickness 3 mm (≃1/8 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 19 mm (≃3/4 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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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 76 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
cylinder outer diameter 64.4 mm
cylinder inlet length 50 mm
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Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀76 mm and a rectangular section with internal dimensions 84×34 mm. The wall thickness is 4 mm and the total length is 200 mm.
Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL 3D file ⌀40 mm to 30×30 mm, thickness 2 mm (📦 #4689)

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Parameter Value Unit
cylinder outer diameter 40 mm
cylinder inlet length 100 mm
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Round-to-Rectangular Tube Adapter STL file ⌀32 mm to 25×6 mm, thickness 2 mm (📦 #1757)

1 object(s) - format STL
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3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀32 mm and a rectangular section with inner dimensions 25×6 mm. The wall thickness is 2 mm and the total length is 280 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 60 mm
rectangle internal length 25 mm
rectangle internal height 6 mm
rectangle inlet length 60 mm
offset Z 0 mm
offset Y 0 mm
total length 280 mm
thickness 2 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL 3D file ⌀94 mm to 210×25 mm, thickness 3 mm (📦 #4887)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀94 mm to 210×25 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀94 mm and a rectangular section with internal dimensions 210×25 mm. The wall thickness is 3 mm and the total length is 220 mm.
Parameter Value Unit
cylinder outer diameter 94 mm
cylinder inlet length 100 mm
rectangle internal length 210 mm
rectangle internal height 25 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 220 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀82 mm to 60×35 mm, thickness 2 mm (📦 #5108)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀82 mm to 60×35 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀82 mm and a rectangular section with internal dimensions 60×35 mm. The wall thickness is 2 mm and the total length is 205 mm. 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 82 mm
cylinder inlet length 100 mm
rectangle internal length 60 mm
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offset Y 0 mm
total length 205 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀94 mm to 200×25 mm, thickness 4 mm (📦 #7605)

1 object(s) - format STL
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File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀94 mm and a rectangular section with internal dimensions 200×25 mm. The shell thickness is 4 mm and the total length is 230 mm.
Parameter Value Unit
cylinder outer diameter 94 mm
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rectangle internal length 200 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 30×30 mm, thickness 3 mm (📦 #5013)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 30×30 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀60 mm and a rectangular section with internal dimensions 30×30 mm. The shell thickness is 3 mm and the overall length is 300 mm. A chamfer is present on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 100 mm
rectangle internal length 30 mm
rectangle internal height 30 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 300 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀52 mm to 100×60 mm, thickness 3 mm + offset (📦 #1873)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀52 mm to 100×60 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀52 mm and a rectangular section with internal dimensions 100×60 mm. The shell thickness is 3 mm and the total length is 120 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 52 mm
cylinder inlet length 50 mm
rectangle internal length 100 mm
rectangle internal height 60 mm
rectangle inlet length 50 mm
offset Z 3 mm
offset Y 3 mm
total length 120 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 60×5 mm, thickness 3 mm (📦 #9116)

1 object(s) - format STL
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Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀50 mm and a rectangular section with inner dimensions 60×5 mm. The shell thickness is 3 mm and the overall length is 180 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 60 mm
rectangle internal length 60 mm
rectangle internal height 5 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 180 mm
thickness 3 mm
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1 object(s) - format STL
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Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀101.5 mm and a rectangular section with inner dimensions 120×20 mm. The shell thickness is 3 mm and the total length is 195 mm.
Parameter Value Unit
cylinder outer diameter 101.5 mm
cylinder inlet length 75 mm
rectangle internal length 120 mm
rectangle internal height 20 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 195 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×78 mm, thickness 3 mm (📦 #2582)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×78 mm, thickness 3 mm
Download this 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 160×78 mm. The wall thickness is 3 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 76 mm
rectangle internal length 160 mm
rectangle internal height 78 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer