Custom Round-to-Rectangular Tube Adapter STL file ⌀126 mm to 30×63.5 mm, thickness 3 mm 📦#5405

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3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀126 mm and a rectangular section with inner dimensions 30×63.5 mm. The wall thickness is 3 mm and the total length is 150 mm.
Generation date: 2025-12-27
3D Model Round-to-Rectangular Tube Adapter STL file ⌀126 mm to 30×63.5 mm, thickness 3 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model5405-nb0_dd{id}.stl : 2.8 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 126 mm (≃4.96 in)
#2 cylinder inlet length 30 mm (≃1 3/16 in)
#3 rectangle internal length 30 mm (≃1 3/16 in)
#4 rectangle internal height 63.5 mm (2 1/2 in)
#5 rectangle inlet length 80 mm (≃3.15 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 150 mm (≃5.91 in)
#9 thickness 3 mm (≃1/8 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 120 mm (≃4.72 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 

Round-to-Rectangular Tube Adapter STL 3D file ⌀126 mm to 30×63.5 mm, thickness 3 mm + offset (📦 #2122)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀126 mm to 30×63.5 mm, thickness 3 mm + offset
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Parameter Value Unit
cylinder outer diameter 126 mm
cylinder inlet length 30 mm
rectangle internal length 30 mm
rectangle internal height 63.5 mm
rectangle inlet length 80 mm
offset Z 20.0 mm
offset Y 3 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀126 mm to 139×63.5 mm, thickness 3 mm + offset (📦 #2121)

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Parameter Value Unit
cylinder outer diameter 126 mm
cylinder inlet length 30 mm
rectangle internal length 139 mm
rectangle internal height 63.5 mm
rectangle inlet length 80 mm
offset Z 3 mm
offset Y 3 mm
total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 50×50 mm, thickness 3 mm (📦 #2954)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 50×50 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀106 mm and a rectangular section with internal dimensions 50×50 mm. The wall thickness is 3 mm and the overall length is 100 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 106 mm
cylinder inlet length 15 mm
rectangle internal length 50 mm
rectangle internal height 50 mm
rectangle inlet length 60 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀126.5 mm to 100×100 mm, thickness 3 mm (📦 #5162)

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Round-to-Rectangular Tube Adapter STL file ⌀126.5 mm to 100×100 mm, thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 126.5 mm
cylinder inlet length 40 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀84 mm to 85×85 mm, thickness 2 mm (📦 #3219)

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Parameter Value Unit
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rectangle internal length 85 mm
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Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 100×50 mm, thickness 2 mm (📦 #3061)

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Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 20 mm
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rectangle internal height 50 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀90 mm to 76×76 mm, thickness 3 mm (📦 #2367)

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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 88 mm
cylinder inlet length 30 mm
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Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 40 mm
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rectangle inlet length 47 mm
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thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀109 mm to 55×12 mm, thickness 3 mm (📦 #8797)

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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 150 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 ⌀109 mm and a rectangular section with inner dimensions 55×12 mm. The shell thickness is 3 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 109 mm
cylinder inlet length 40 mm
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offset Y 0 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀200 mm to 50×50 mm, thickness 3 mm (📦 #9649)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀200 mm to 50×50 mm, thickness 3 mm
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀200 mm and a rectangular section with inner dimensions 50×50 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 200 mm
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rectangle internal length 50 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
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Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 30 mm
rectangle internal length 150 mm
rectangle internal height 80 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 100×100 mm, thickness 3 mm (📦 #1614)

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Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with inner dimensions 100×100 mm. The shell thickness is 3 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 50 mm
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offset Y 0 mm
total length 200 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀64.4 mm to 76.2×50 mm, thickness 3 mm (📦 #3492)

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Parameter Value Unit
cylinder outer diameter 64.4 mm
cylinder inlet length 50 mm
rectangle internal length 76.2 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
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Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 120×120 mm, thickness 3 mm + offset (📦 #1799)

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Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 120×120 mm, thickness 3 mm + offset
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Parameter Value Unit
cylinder outer diameter 120 mm
cylinder inlet length 50 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 100 mm
offset Z 2 mm
offset Y 2 mm
total length 200 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 60×30 mm, thickness 3 mm (📦 #1474)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 60×30 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀80 mm and a rectangular section with internal dimensions 60×30 mm. The wall thickness is 3 mm and the overall length is 90 mm.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 30 mm
rectangle internal length 60 mm
rectangle internal height 30 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 90 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀57 mm to 36×25.6 mm, thickness 3 mm (📦 #2993)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀57 mm to 36×25.6 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀57 mm and a rectangular section with internal dimensions 36×25.6 mm. The wall thickness is 3 mm and the overall length is 96 mm.
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
offset Z 0 mm
offset Y 0 mm
total length 96 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀57 mm to 29×19 mm, thickness 3 mm (📦 #2991)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀57 mm to 29×19 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀57 mm and a rectangular section with internal dimensions 29×19 mm. The wall thickness is 3 mm and the total length is 96 mm.
Parameter Value Unit
cylinder outer diameter 57 mm
cylinder inlet length 25 mm
rectangle internal length 29 mm
rectangle internal height 19 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
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Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 80×55 mm, thickness 3 mm + offset (📦 #8052)

1 object(s) - format STL
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Parameter Value Unit
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cylinder inlet length 60 mm
rectangle internal length 80 mm
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rectangle inlet length 50 mm
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offset Y 3 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 ⌀105 mm and a rectangular section with inner dimensions 150×50 mm. The shell thickness is 3 mm and the overall length is 100 mm. The adapter has an offset of 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 105 mm
cylinder inlet length 30 mm
rectangle internal length 150 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
offset Z 10 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 100×30 mm, thickness 3 mm + offset (📦 #5664)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 100×30 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀100 mm and a rectangular section with inner dimensions 100×30 mm. The shell thickness is 3 mm and the overall length is 100 mm. The adapter has an offset of 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 40 mm
rectangle internal length 100 mm
rectangle internal height 30 mm
rectangle inlet length 40 mm
offset Z 10 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀155 mm to 144×127 mm, thickness 3 mm (📦 #9857)

1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 155 mm
cylinder inlet length 30 mm
rectangle internal length 144 mm
rectangle internal height 127 mm
rectangle inlet length 57 mm
offset Z 0 mm
offset Y 0 mm
total length 108 mm
thickness 3 mm
chamfer no chamfer