Custom Round-to-Rectangular Tube Adapter STL file ⌀34 mm to 39.7×29.2 mm, thickness 3 mm 📦#10226

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File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀34 mm and a rectangular section with inner dimensions 39.7×29.2 mm. The wall thickness is 3 mm and the overall length is 60 mm.
Generation date: 2026-07-18
3D Model Round-to-Rectangular Tube Adapter STL file ⌀34 mm to 39.7×29.2 mm, thickness 3 mm

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Free
  • round-to-rectangular-adapter-d_model10226-nb0_dd{id}.stl : 1 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 25 mm (≃0.98 in)
#3 rectangle internal length 39.7 mm (≃1 9/16 in)
#4 rectangle internal height 29.2 mm (≃1.15 in)
#5 rectangle inlet length 15 mm (≃0.59 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 60 mm (≃2 3/8 in)
#9 thickness 3 mm (≃1/8 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 28 mm (≃1.10 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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cylinder inlet length 20 mm
rectangle internal length 30 mm
rectangle internal height 40 mm
rectangle inlet length 10 mm
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offset Y 0 mm
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thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 15 mm
rectangle internal length 35 mm
rectangle internal height 20 mm
rectangle inlet length 20 mm
offset Z 2 mm
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thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀32 mm to 35×20 mm, thickness 3 mm + offset (📦 #1619)

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Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 15 mm
rectangle internal length 35 mm
rectangle internal height 20 mm
rectangle inlet length 20 mm
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Parameter Value Unit
cylinder outer diameter 20 mm
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Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 15 mm
rectangle internal length 21 mm
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Parameter Value Unit
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rectangle internal height 25 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀26 mm to 35×20 mm, thickness 3 mm + offset (📦 #1617)

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Parameter Value Unit
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cylinder inlet length 15 mm
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cylinder inlet length 20 mm
rectangle internal length 20 mm
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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL 3D file ⌀30 mm to 29×19 mm, thickness 2 mm (📦 #1948)

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Parameter Value Unit
cylinder outer diameter 30 mm
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Parameter Value Unit
cylinder outer diameter 30.5 mm
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rectangle internal length 27 mm
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Round-to-Rectangular Tube Adapter STL file ⌀22 mm to 40×10 mm, thickness 2 mm (📦 #2886)

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Parameter Value Unit
cylinder outer diameter 22 mm
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rectangle internal length 40 mm
rectangle internal height 10 mm
rectangle inlet length 10 mm
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offset Y 0 mm
total length 50 mm
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Round-to-Rectangular Tube Adapter STL file ⌀44 mm to 50×25 mm, thickness 2 mm + offset (📦 #3454)

1 object(s) - format STL
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3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀44 mm and a rectangular section with internal dimensions 50×25 mm. The shell thickness is 2 mm and the total length is 60 mm. The adapter has an offset of 7 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 44 mm
cylinder inlet length 20 mm
rectangle internal length 50 mm
rectangle internal height 25 mm
rectangle inlet length 20 mm
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Round-to-Rectangular Tube Adapter STL file ⌀39 mm to 46×16 mm, thickness 2 mm + offset (📦 #9352)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀39 mm to 46×16 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀39 mm and a rectangular section with internal dimensions 46×16 mm. The wall thickness is 2 mm and the overall length is 57 mm. The adapter has an offset of 5 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 39 mm
cylinder inlet length 17 mm
rectangle internal length 46 mm
rectangle internal height 16 mm
rectangle inlet length 20 mm
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offset Y 0 mm
total length 57 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀25 mm to 20×5 mm, thickness 2 mm (📦 #7978)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀25 mm to 20×5 mm, thickness 2 mm
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀25 mm and a rectangular section with internal dimensions 20×5 mm. The wall thickness is 2 mm and the total length is 60 mm.
Parameter Value Unit
cylinder outer diameter 25 mm
cylinder inlet length 20 mm
rectangle internal length 20 mm
rectangle internal height 5 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 ⌀24 mm to 20×5 mm, thickness 2 mm (📦 #7976)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀24 mm to 20×5 mm, thickness 2 mm
3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀24 mm and a rectangular section with inner dimensions 20×5 mm. The wall thickness is 2 mm and the total length is 60 mm.
Parameter Value Unit
cylinder outer diameter 24 mm
cylinder inlet length 20 mm
rectangle internal length 20 mm
rectangle internal height 5 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 ⌀39 mm to 49×13 mm, thickness 2 mm + offset (📦 #4964)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀39 mm to 49×13 mm, thickness 2 mm + offset
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀39 mm and a rectangular section with internal dimensions 49×13 mm. The wall thickness is 2 mm and the overall length is 57 mm. The adapter has an offset of 5 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 39 mm
cylinder inlet length 17 mm
rectangle internal length 49 mm
rectangle internal height 13 mm
rectangle inlet length 20 mm
offset Z 5 mm
offset Y 0 mm
total length 57 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀22 mm to 20×5 mm, thickness 2 mm (📦 #7973)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀22 mm to 20×5 mm, thickness 2 mm
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀22 mm and a rectangular section with inner dimensions 20×5 mm. The shell thickness is 2 mm and the total length is 60 mm.
Parameter Value Unit
cylinder outer diameter 22 mm
cylinder inlet length 20 mm
rectangle internal length 20 mm
rectangle internal height 5 mm
rectangle inlet length 20 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 ⌀55 mm to 29×19 mm, thickness 2 mm (📦 #2937)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀55 mm to 29×19 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀55 mm and a rectangular section with inner dimensions 29×19 mm. The shell thickness is 2 mm and the total length is 80 mm.
Parameter Value Unit
cylinder outer diameter 55 mm
cylinder inlet length 29 mm
rectangle internal length 29 mm
rectangle internal height 19 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 ⌀90 mm to 60×60 mm, thickness 3 mm (📦 #1563)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 60×60 mm, thickness 3 mm
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
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀22 mm to 5×12 mm, thickness 2 mm (📦 #6546)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀22 mm to 5×12 mm, thickness 2 mm
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀22 mm and a rectangular section with inner dimensions 5×12 mm. The wall thickness is 2 mm and the total length is 70 mm.
Parameter Value Unit
cylinder outer diameter 22 mm
cylinder inlet length 30 mm
rectangle internal length 5 mm
rectangle internal height 12 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 70 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀20 mm to 25×5 mm, thickness 3 mm (📦 #9026)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀20 mm to 25×5 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀20 mm and a rectangular section with inner dimensions 25×5 mm. The wall thickness is 3 mm and the overall length is 85 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 25 mm
rectangle internal length 25 mm
rectangle internal height 5 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 85 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 32×32 mm, thickness 2 mm (📦 #1999)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 32×32 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀50 mm and a rectangular section with inner dimensions 32×32 mm. The wall thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 25 mm
rectangle internal length 32 mm
rectangle internal height 32 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀36 mm to 75×31 mm, thickness 2 mm (📦 #7742)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀36 mm to 75×31 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀36 mm and a rectangular section with internal dimensions 75×31 mm. The wall thickness is 2 mm and the total length is 80 mm.
Parameter Value Unit
cylinder outer diameter 36 mm
cylinder inlet length 35 mm
rectangle internal length 75 mm
rectangle internal height 31 mm
rectangle inlet length 15 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 3D file ⌀33 mm to 75×12 mm, thickness 2 mm (📦 #9002)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀33 mm to 75×12 mm, thickness 2 mm
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀33 mm and a rectangular section with internal dimensions 75×12 mm. The wall thickness is 2 mm and the overall length is 85 mm.
Parameter Value Unit
cylinder outer diameter 33 mm
cylinder inlet length 31 mm
rectangle internal length 75 mm
rectangle internal height 12 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 85 mm
thickness 2 mm
chamfer no chamfer