Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀33.5 mm to 25×34 mm, thickness 3 mm 📦#2476

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File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀33.5 mm and a rectangular section with inner dimensions 25×34 mm. The shell thickness is 3 mm and the total length is 84 mm.
Generation date: 2025-10-16
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀33.5 mm to 25×34 mm, thickness 3 mm

3D model download

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  • round-to-rectangular-adapter-d_model2476-nb0_dd{id}.stl : 775.2 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 33.5 mm (≃1 5/16 in)
#2 cylinder inlet length 25 mm (≃0.98 in)
#3 rectangle internal length 25 mm (≃0.98 in)
#4 rectangle internal height 34 mm (≃1.34 in)
#5 rectangle inlet length 39 mm (≃1.54 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 84 mm (≃3 5/16 in)
#9 thickness 3 mm (≃1/8 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 27.5 mm (≃1.08 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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rectangle internal length 50 mm
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offset Y 0 mm
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Parameter Value Unit
cylinder outer diameter 57 mm
cylinder inlet length 25 mm
rectangle internal length 36 mm
rectangle internal height 25.6 mm
rectangle inlet length 50 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 35×25 mm, thickness 3 mm (📦 #2245)

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Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 25 mm
rectangle internal length 35 mm
rectangle internal height 25 mm
rectangle inlet length 25 mm
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Round-to-Rectangular Tube Adapter STL file ⌀57 mm to 29×19 mm, thickness 3 mm (📦 #2991)

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Parameter Value Unit
cylinder outer diameter 57 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀20 mm to 25×5 mm, thickness 3 mm (📦 #9026)

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Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 25 mm
rectangle internal length 25 mm
rectangle internal height 5 mm
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Parameter Value Unit
cylinder outer diameter 22 mm
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Parameter Value Unit
cylinder outer diameter 32 mm
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Parameter Value Unit
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cylinder inlet length 25 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
cylinder outer diameter 22 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
cylinder outer diameter 26 mm
cylinder inlet length 15 mm
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Parameter Value Unit
cylinder outer diameter 20 mm
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cylinder outer diameter 20 mm
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thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀20 mm to 21×16 mm, thickness 3 mm (📦 #3337)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀20 mm to 21×16 mm, thickness 3 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 21×16 mm. The wall thickness is 3 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 15 mm
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Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 43×43 mm, thickness 4 mm (📦 #8538)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 43×43 mm, thickness 4 mm
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀40 mm and a rectangular section with internal dimensions 43×43 mm. The shell thickness is 4 mm and the total length is 100 mm.
Parameter Value Unit
cylinder outer diameter 40 mm
cylinder inlet length 40 mm
rectangle internal length 43 mm
rectangle internal height 43 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀20 mm to 24×16.4 mm, thickness 2 mm (📦 #3003)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀20 mm to 24×16.4 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀20 mm and a rectangular section with internal dimensions 24×16.4 mm. The shell thickness is 2 mm and the total length is 70 mm.
Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 10 mm
rectangle internal length 24 mm
rectangle internal height 16.4 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 70 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
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Round-to-Rectangular Tube Adapter STL 3D file ⌀44 mm to 50×25 mm, thickness 2 mm (📦 #3451)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀44 mm to 50×25 mm, thickness 2 mm
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀44 mm and a rectangular section with inner dimensions 50×25 mm. The wall thickness is 2 mm and the overall length is 60 mm.
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
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 ⌀43 mm to 25×6 mm, thickness 2 mm (📦 #1750)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀43 mm to 25×6 mm, thickness 2 mm
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Parameter Value Unit
cylinder outer diameter 43 mm
cylinder inlet length 25 mm
rectangle internal length 25 mm
rectangle internal height 6 mm
rectangle inlet length 19 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀20 mm to 20×10 mm, thickness 3 mm + offset (📦 #4816)

1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 20 mm
rectangle internal length 20 mm
rectangle internal height 10 mm
rectangle inlet length 10 mm
offset Z 3 mm
offset Y 1 mm
total length 50 mm
thickness 3 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 ⌀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
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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
chamfer no chamfer

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
offset Z 0 mm
offset Y 0 mm
total length 70 mm
thickness 3 mm
chamfer no chamfer