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Custom Round-to-Rectangular Tube Adapter STL file ⌀145 mm to 120×120 mm, thickness 2 mm 📦#3299

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3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀145 mm and a rectangular section with inner dimensions 120×120 mm. The shell thickness is 2 mm and the total length is 100 mm. A chamfer is applied on the inside of the rectangular end.
Generation date: 2025-11-15
3D Model Round-to-Rectangular Tube Adapter STL file ⌀145 mm to 120×120 mm, thickness 2 mm

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  • round-to-rectangular-adapter-d_model3299-nb0_dd{id}.stl : 1.7 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 145 mm (≃5.71 in)
#2 cylinder inlet length 50 mm (≃1.97 in)
#3 rectangle internal length 120 mm (≃4.72 in)
#4 rectangle internal height 120 mm (≃4.72 in)
#5 rectangle inlet length 20 mm (≃0.79 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 100 mm (≃3 15/16 in)
#9 thickness 2 mm (≃0.08 in)
#10 chamfer chamfer on the inside
of the rectangular tube
Metadata Value
Cylinder internal diameter 141 mm (≃5 9/16 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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To search for a model based on your own parameters, go to the template page Round to rectangular adapter 

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Parameter Value Unit
cylinder outer diameter 99.5 mm
cylinder inlet length 30 mm
rectangle internal length 170 mm
rectangle internal height 100 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer chamfers on ...
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Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 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 127 mm
thickness 2 mm
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3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀95 mm and a rectangular section with inner dimensions 110×110 mm. The shell thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 95 mm
cylinder inlet length 50 mm
rectangle internal length 110 mm
rectangle internal height 110 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀102 mm and a rectangular section with inner dimensions 150×150 mm. The shell thickness is 2 mm and the total length is 100 mm.
Parameter Value Unit
cylinder outer diameter 102 mm
cylinder inlet length 50 mm
rectangle internal length 150 mm
rectangle internal height 150 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
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3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀95 mm and a rectangular section with internal dimensions 116×144.5 mm. The wall thickness is 2 mm and the total length is 100 mm.
Parameter Value Unit
cylinder outer diameter 95 mm
cylinder inlet length 50 mm
rectangle internal length 116 mm
rectangle internal height 144.5 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀95 mm and a rectangular section with internal dimensions 120×148.5 mm. The shell thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 95 mm
cylinder inlet length 50 mm
rectangle internal length 120 mm
rectangle internal height 148.5 mm
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offset Z 0 mm
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3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with internal dimensions 135×100 mm. The shell thickness is 2 mm and the overall length is 60 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 135 mm
rectangle internal height 100 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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Parameter Value Unit
cylinder outer diameter 105 mm
cylinder inlet length 50 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
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thickness 2 mm
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Parameter Value Unit
cylinder outer diameter 99.5 mm
cylinder inlet length 30 mm
rectangle internal length 170 mm
rectangle internal height 100 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 180 mm
thickness 2 mm
chamfer chamfers on ...
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀78 mm and a rectangular section with internal dimensions 120×120 mm. The shell thickness is 2 mm and the total length is 100 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 78 mm
cylinder inlet length 20 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfers on ...
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀110 mm and a rectangular section with internal dimensions 100×100 mm. The shell thickness is 3 mm and the total length is 80 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 110 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 30 mm
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Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 25 mm
rectangle internal length 99 mm
rectangle internal height 101 mm
rectangle inlet length 16 mm
offset Z 0 mm
offset Y 0 mm
total length 65 mm
thickness 2 mm
chamfer chamfers on ...
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with inner dimensions 150×50 mm. The wall thickness is 2 mm and the overall length is 150 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 150 mm
rectangle internal height 50 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
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Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀155 mm and a rectangular section with inner dimensions 151×71 mm. The wall thickness is 2 mm and the total length is 100 mm.
Parameter Value Unit
cylinder outer diameter 155 mm
cylinder inlet length 25 mm
rectangle internal length 151 mm
rectangle internal height 71 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
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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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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 25 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 30 mm
rectangle internal length 62 mm
rectangle internal height 82 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfer on t...
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Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 30 mm
rectangle internal length 60 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfers on ...
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Parameter Value Unit
cylinder outer diameter 110 mm
cylinder inlet length 50 mm
rectangle internal length 50 mm
rectangle internal height 120 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
chamfer chamfer on t...
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀127 mm and a rectangular section with inner dimensions 123×72 mm. The shell thickness is 2 mm and the total length is 76 mm.
Parameter Value Unit
cylinder outer diameter 127 mm
cylinder inlet length 20 mm
rectangle internal length 123 mm
rectangle internal height 72 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 76 mm
thickness 2 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀108.7 mm and a rectangular section with internal dimensions 110×55 mm. The shell thickness is 2 mm and the total length is 67 mm. The adapter has an offset of 13 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.
Parameter Value Unit
cylinder outer diameter 108.7 mm
cylinder inlet length 20 mm
rectangle internal length 110 mm
rectangle internal height 55 mm
rectangle inlet length 20 mm
offset Z 13 mm
offset Y 0 mm
total length 67 mm
thickness 2 mm
chamfer chamfers on ...
Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 110×55 mm. The wall thickness is 2 mm and the total length is 63 mm. The adapter has an offset of 8 mm along the Z axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 110 mm
rectangle internal height 55 mm
rectangle inlet length 20 mm
offset Z 8 mm
offset Y 0 mm
total length 63 mm
thickness 2 mm
chamfer chamfers on ...
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Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 30 mm
rectangle internal length 43 mm
rectangle internal height 82 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfer on t...
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀155 mm and a rectangular section with internal dimensions 123×72 mm. The shell thickness is 2 mm and the total length is 60 mm.
Parameter Value Unit
cylinder outer diameter 155 mm
cylinder inlet length 20 mm
rectangle internal length 123 mm
rectangle internal height 72 mm
rectangle inlet length 10 mm
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 2 mm
chamfer no chamfer
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 112.5×50.8 mm. The wall thickness is 3 mm and the overall length is 88 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 100 mm
cylinder inlet length 38 mm
rectangle internal length 112.5 mm
rectangle internal height 50.8 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 88 mm
thickness 3 mm
chamfer chamfers on ...
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀65 mm and a rectangular section with inner dimensions 62×82 mm. The shell thickness is 2 mm and the overall length is 100 mm. A chamfer is present on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 65 mm
cylinder inlet length 30 mm
rectangle internal length 62 mm
rectangle internal height 82 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfer on t...
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Parameter Value Unit
cylinder outer diameter 107 mm
cylinder inlet length 30 mm
rectangle internal length 110 mm
rectangle internal height 54 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 3 mm
chamfer chamfers on ...
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 119×72 mm. The wall thickness is 2 mm and the overall length is 76 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 119 mm
rectangle internal height 72 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 76 mm
thickness 2 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀73 mm and a rectangular section with internal dimensions 151×151 mm. The wall thickness is 2 mm and the total length is 50 mm. The adapter has an offset of 2 mm along the Y axis and 2 mm along the Z axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 73 mm
cylinder inlet length 20 mm
rectangle internal length 151 mm
rectangle internal height 151 mm
rectangle inlet length 5 mm
offset Z 2 mm
offset Y 2 mm
total length 50 mm
thickness 2 mm
chamfer chamfers on ...
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 119×68 mm. The shell thickness is 2 mm and the overall length is 76 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 119 mm
rectangle internal height 68 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 76 mm
thickness 2 mm
chamfer no chamfer