Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀250 mm to 250×150 mm, thickness 3 mm + offset 📦#2131

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File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀250 mm and a rectangular section with internal dimensions 250×150 mm. The shell thickness is 3 mm and the total length is 165 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 to ease insertion.
Generation date: 2025-09-30
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀250 mm to 250×150 mm, thickness 3 mm + offset

3D model download

Free
  • round-to-rectangular-adapter-d_model2131-nb0_dd{id}.stl : 4.2 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 250 mm (≃9.84 in)
#2 cylinder inlet length 50 mm (≃1.97 in)
#3 rectangle internal length 250 mm (≃9.84 in)
#4 rectangle internal height 150 mm (≃5.91 in)
#5 rectangle inlet length 80 mm (≃3.15 in)
#6 offset Z 15 mm (≃0.59 in)
#7 offset Y 0 mm (0 in)
#8 total length 165 mm (≃6 1/2 in)
#9 thickness 3 mm (≃1/8 in)
#10 chamfer chamfers on the outside
of the cylindrical tube
and on the inside of
the rectangular tube
Metadata Value
Cylinder internal diameter 244 mm (≃9.61 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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1 object(s) - format STL
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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
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1 object(s) - format STL
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1 object(s) - format STL
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Parameter Value Unit
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cylinder inlet length 35 mm
rectangle internal length 300 mm
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rectangle inlet length 50 mm
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1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 148 mm
cylinder inlet length 25 mm
rectangle internal length 145.0 mm
rectangle internal height 70 mm
rectangle inlet length 80 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer chamfers on ...

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1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀249 mm to 204×204 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀249 mm and a rectangular section with inner dimensions 204×204 mm. The shell thickness is 3 mm and the total length is 249 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 249 mm
cylinder inlet length 20 mm
rectangle internal length 204 mm
rectangle internal height 204 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 249 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀150 mm to 198×98 mm, thickness 2 mm (📦 #1970)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀150 mm to 198×98 mm, thickness 2 mm
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀150 mm and a rectangular section with internal dimensions 198×98 mm. The shell thickness is 2 mm and the overall length is 152 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 150 mm
cylinder inlet length 75 mm
rectangle internal length 198 mm
rectangle internal height 98 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 152 mm
thickness 2 mm
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