Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀65 mm to 203×203 mm, thickness 3 mm 📦#9075

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File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀65 mm and a rectangular section with internal dimensions 203×203 mm. The wall thickness is 3 mm and the overall length is 220 mm.
Generation date: 2026-05-21
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀65 mm to 203×203 mm, thickness 3 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model9075-nb0_dd{id}.stl : 2.3 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 65 mm (≃2 9/16 in)
#2 cylinder inlet length 35 mm (≃1 3/8 in)
#3 rectangle internal length 203 mm (≃8 in)
#4 rectangle internal height 203 mm (≃8 in)
#5 rectangle inlet length 35 mm (≃1 3/8 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 220 mm (≃8.66 in)
#9 thickness 3 mm (≃1/8 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 59 mm (≃2 5/16 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 215 mm
rectangle internal height 195 mm
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Parameter Value Unit
cylinder outer diameter 50 mm
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Parameter Value Unit
cylinder outer diameter 102 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 215×195 mm, thickness 2 mm (📦 #10353)

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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 150 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 300×250 mm, thickness 2 mm (📦 #10426)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 300×250 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with internal dimensions 300×250 mm. The shell thickness is 2 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
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offset Y 0 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
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Round-to-Rectangular Tube Adapter STL file ⌀89 mm to 178×83 mm, thickness 3 mm (📦 #11242)

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Round-to-Rectangular Tube Adapter STL file ⌀89 mm to 178×83 mm, thickness 3 mm
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀89 mm and a rectangular section with inner dimensions 178×83 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 89 mm
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rectangle internal height 83 mm
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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
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offset Y 0 mm
total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 44×194 mm, thickness 3 mm (📦 #10213)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 44×194 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀100 mm and a rectangular section with internal dimensions 44×194 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 30 mm
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rectangle internal height 194 mm
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offset Y 0 mm
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Round-to-Rectangular Tube Adapter STL file ⌀89 mm to 165×83 mm, thickness 3 mm (📦 #11243)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀89 mm to 165×83 mm, thickness 3 mm
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀89 mm and a rectangular section with inner dimensions 165×83 mm. The wall thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 89 mm
cylinder inlet length 50 mm
rectangle internal length 165 mm
rectangle internal height 83 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀124 mm to 250×80 mm, thickness 3 mm (📦 #2146)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀124 mm to 250×80 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀124 mm and a rectangular section with internal dimensions 250×80 mm. The wall thickness is 3 mm and the total length is 186 mm.
Parameter Value Unit
cylinder outer diameter 124 mm
cylinder inlet length 30 mm
rectangle internal length 250 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 186 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 240×120 mm, thickness 3 mm (📦 #10091)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 240×120 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀150 mm and a rectangular section with inner dimensions 240×120 mm. The shell thickness is 3 mm and the overall length is 220 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 25 mm
rectangle internal length 240 mm
rectangle internal height 120 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 220 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀124 mm to 250×100 mm, thickness 2 mm (📦 #7367)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀124 mm to 250×100 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀124 mm and a rectangular section with inner dimensions 250×100 mm. The shell thickness is 2 mm and the total length is 250 mm.
Parameter Value Unit
cylinder outer diameter 124 mm
cylinder inlet length 40 mm
rectangle internal length 250 mm
rectangle internal height 100 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 250 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀146 mm to 255×130 mm, thickness 3 mm (📦 #9796)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀146 mm to 255×130 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀146 mm and a rectangular section with internal dimensions 255×130 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 146 mm
cylinder inlet length 40 mm
rectangle internal length 255 mm
rectangle internal height 130 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀145 mm to 230×130 mm, thickness 3 mm (📦 #9801)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀145 mm to 230×130 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀145 mm and a rectangular section with internal dimensions 230×130 mm. The shell thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 145 mm
cylinder inlet length 50 mm
rectangle internal length 230 mm
rectangle internal height 130 mm
rectangle inlet length 50 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 3D file ⌀100 mm to 50×200 mm, thickness 3 mm (📦 #10061)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 50×200 mm, thickness 3 mm
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 50×200 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 50 mm
rectangle internal height 200 mm
rectangle inlet length 50 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 ⌀100 mm to 240×270 mm, thickness 2 mm (📦 #9821)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 240×270 mm, thickness 2 mm
Download this 3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 240×270 mm. The wall thickness is 2 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 240 mm
rectangle internal height 270 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀98 mm to 155×105 mm, thickness 3 mm (📦 #8640)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀98 mm to 155×105 mm, thickness 3 mm
3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀98 mm and a rectangular section with internal dimensions 155×105 mm. The wall thickness is 3 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 98 mm
cylinder inlet length 39 mm
rectangle internal length 155 mm
rectangle internal height 105 mm
rectangle inlet length 39 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 200.5×170.5 mm, thickness 3 mm + offset (📦 #10628)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 200.5×170.5 mm, thickness 3 mm + offset
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 200.5×170.5 mm. The wall thickness is 3 mm and the overall length is 128 mm. The adapter has an offset of 14 mm along the Z axis. A chamfer is applied on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 200.5 mm
rectangle internal height 170.5 mm
rectangle inlet length 50 mm
offset Z 14 mm
offset Y 0 mm
total length 128 mm
thickness 3 mm
chamfer chamfer on t...