Custom Round-to-Rectangular Tube Adapter STL file ⌀108 mm to 300×300 mm, thickness 3 mm 📦#11320

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3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀108 mm and a rectangular section with inner dimensions 300×300 mm. The shell thickness is 3 mm and the total length is 200 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Generation date: 2026-08-30
3D Model Round-to-Rectangular Tube Adapter STL file ⌀108 mm to 300×300 mm, thickness 3 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model11320-nb0_dd{id}.stl : 4.9 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 108 mm (≃4 1/4 in)
#2 cylinder inlet length 50 mm (≃1.97 in)
#3 rectangle internal length 300 mm (≃11 13/16 in)
#4 rectangle internal height 300 mm (≃11 13/16 in)
#5 rectangle inlet length 100 mm (≃3 15/16 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 chamfers on the outside
of the cylindrical tube
and on the inside of
the rectangular tube
Metadata Value
Cylinder internal diameter 102 mm (≃4.02 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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Round-to-Rectangular Tube Adapter STL file ⌀108 mm to 300×300 mm, thickness 3 mm (📦 #11318)

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Parameter Value Unit
cylinder outer diameter 108 mm
cylinder inlet length 40 mm
rectangle internal length 300 mm
rectangle internal height 300 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 140 mm
thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 156 mm
cylinder inlet length 40 mm
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Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 300×300 mm, thickness 3 mm + offset (📦 #1673)

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Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 300×300 mm, thickness 3 mm + offset
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Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 mm
rectangle internal length 300 mm
rectangle internal height 300 mm
rectangle inlet length 70 mm
offset Z 4 mm
offset Y 4 mm
total length 180 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀156 mm to 180×220 mm, thickness 3 mm (📦 #9782)

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Parameter Value Unit
cylinder outer diameter 156 mm
cylinder inlet length 40 mm
rectangle internal length 180 mm
rectangle internal height 220 mm
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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 ⌀156 mm to 200×200 mm, thickness 3 mm (📦 #9781)

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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 110 mm
cylinder inlet length 30 mm
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Parameter Value Unit
cylinder outer diameter 160 mm
cylinder inlet length 30 mm
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Parameter Value Unit
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1 object(s) - format STL
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Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀108 mm and a rectangular section with internal dimensions 300×300 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 20 mm along the Y axis and 20 mm along the Z axis. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 108 mm
cylinder inlet length 80 mm
rectangle internal length 300 mm
rectangle internal height 300 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀150 mm to 240×120 mm, thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 mm
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3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀110 mm and a rectangular section with internal dimensions 220×220 mm. The shell thickness is 3 mm and the total length is 120 mm. The adapter has an offset of 20 mm along the Z axis. A chamfer is present on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 110 mm
cylinder inlet length 30 mm
rectangle internal length 220 mm
rectangle internal height 220 mm
rectangle inlet length 50 mm
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total length 120 mm
thickness 3 mm
chamfer chamfer on t...

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Parameter Value Unit
cylinder outer diameter 195 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀124 mm to 300×140 mm, thickness 3 mm (📦 #6961)

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 ⌀124 mm and a rectangular section with internal dimensions 300×140 mm. The shell thickness is 3 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 124 mm
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Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 240×100 mm, thickness 3 mm (📦 #7974)

1 object(s) - format STL
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Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀150 mm and a rectangular section with inner dimensions 240×100 mm. The wall thickness is 3 mm and the total length is 200 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 150 mm
cylinder inlet length 60 mm
rectangle internal length 240 mm
rectangle internal height 100 mm
rectangle inlet length 60 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 250×300 mm, thickness 3 mm (📦 #10430)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 250×300 mm, thickness 3 mm
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 250×300 mm. The wall thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 60 mm
rectangle internal length 250 mm
rectangle internal height 300 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀108 mm to 154×240 mm, thickness 5 mm (📦 #4094)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀108 mm to 154×240 mm, thickness 5 mm
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀108 mm and a rectangular section with internal dimensions 154×240 mm. The shell thickness is 5 mm and the total length is 240 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 108 mm
cylinder inlet length 50 mm
rectangle internal length 154 mm
rectangle internal height 240 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 240 mm
thickness 5 mm
chamfer chamfers on ...

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1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 122 mm
cylinder inlet length 35 mm
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rectangle internal height 90 mm
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Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 200×80 mm, thickness 3 mm (📦 #9652)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 200×80 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀150 mm and a rectangular section with internal dimensions 200×80 mm. The shell thickness is 3 mm and the total length is 200 mm. Chamfers are present 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 40 mm
rectangle internal length 200 mm
rectangle internal height 80 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...