Custom Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 119×68 mm, thickness 2 mm 📦#2603

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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 inner dimensions 119×68 mm. The shell thickness is 2 mm and the overall length is 76 mm.
Generation date: 2025-10-19
3D Model Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 119×68 mm, thickness 2 mm

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  • round-to-rectangular-adapter-d_model2603-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 100 mm (≃3 15/16 in)
#2 cylinder inlet length 20 mm (≃0.79 in)
#3 rectangle internal length 119 mm (≃4 11/16 in)
#4 rectangle internal height 68 mm (≃2 11/16 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 76 mm (≃3 in)
#9 thickness 2 mm (≃0.08 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 96 mm (≃3.78 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

Related 3D models

To search for a model based on your own parameters, go to the template page Round to rectangular adapter 

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 model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀80 mm and a rectangular section with inner dimensions 110×80 mm. The shell thickness is 2 mm and the overall length is 60 mm.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 20 mm
rectangle internal length 110 mm
rectangle internal height 80 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 60 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 ⌀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 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀104 mm and a rectangular section with inner dimensions 104×104 mm. The shell thickness is 2 mm and the total length is 80 mm.
Parameter Value Unit
cylinder outer diameter 104 mm
cylinder inlet length 20 mm
rectangle internal length 104 mm
rectangle internal height 104 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer no chamfer
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀120 mm and a rectangular section with internal dimensions 148×78 mm. The shell thickness is 2 mm and the overall length is 70 mm.
Parameter Value Unit
cylinder outer diameter 120 mm
cylinder inlet length 25 mm
rectangle internal length 148 mm
rectangle internal height 78 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 70 mm
thickness 2 mm
chamfer no chamfer
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 106×49 mm. The wall thickness is 2 mm and the total length is 90 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 30 mm
rectangle internal length 106 mm
rectangle internal height 49 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 90 mm
thickness 2 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀125 mm and a rectangular section with internal dimensions 98×58 mm. The shell thickness is 2 mm and the overall length is 55 mm.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 25 mm
rectangle internal length 98 mm
rectangle internal height 58 mm
rectangle inlet length 10 mm
offset Z 0 mm
offset Y 0 mm
total length 55 mm
thickness 2 mm
chamfer no chamfer
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀80 mm and a rectangular section with internal dimensions 80×80 mm. The shell thickness is 2 mm and the overall length is 50 mm.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 15 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀75 mm and a rectangular section with internal dimensions 84×80 mm. The shell thickness is 2 mm and the overall length is 60 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 25 mm
rectangle internal length 84 mm
rectangle internal height 80 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 model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀78 mm and a rectangular section with inner dimensions 100×100 mm. The wall thickness is 2 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 15 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
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 60×60 mm. The shell thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 25 mm
rectangle internal length 60 mm
rectangle internal height 60 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀78 mm and a rectangular section with internal dimensions 104×104 mm. The shell thickness is 2 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 15 mm
rectangle internal length 104 mm
rectangle internal height 104 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀103 mm and a rectangular section with internal dimensions 110×50 mm. The shell thickness is 2 mm and the overall length is 50 mm.
Parameter Value Unit
cylinder outer diameter 103 mm
cylinder inlet length 5 mm
rectangle internal length 110 mm
rectangle internal height 50 mm
rectangle inlet length 10 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
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
chamfer chamfer on t...
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀81 mm and a rectangular section with internal dimensions 120×70 mm. The wall thickness is 2 mm and the total length is 110 mm.
Parameter Value Unit
cylinder outer diameter 81 mm
cylinder inlet length 10 mm
rectangle internal length 120 mm
rectangle internal height 70 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 110 mm
thickness 2 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀125 mm and a rectangular section with inner dimensions 98×58 mm. The wall thickness is 2 mm and the overall length is 55 mm. The adapter has an offset of 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 25 mm
rectangle internal length 98 mm
rectangle internal height 58 mm
rectangle inlet length 10 mm
offset Z 10 mm
offset Y 0 mm
total length 55 mm
thickness 2 mm
chamfer no chamfer
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀124 mm and a rectangular section with internal dimensions 145×69.5 mm. The shell 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.
Parameter Value Unit
cylinder outer diameter 124 mm
cylinder inlet length 10 mm
rectangle internal length 145 mm
rectangle internal height 69.5 mm
rectangle inlet length 8 mm
offset Z 2 mm
offset Y 2 mm
total length 50 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 ⌀124 mm and a rectangular section with inner dimensions 141×65.5 mm. The wall thickness is 2 mm and the total length is 50 mm. The adapter has an offset of 11.0 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 124 mm
cylinder inlet length 20 mm
rectangle internal length 141 mm
rectangle internal height 65.5 mm
rectangle inlet length 8 mm
offset Z 11.0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
Download this 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 50×50 mm. The wall thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 25 mm
rectangle internal length 50 mm
rectangle internal height 50 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀78 mm and a rectangular section with inner dimensions 58×80 mm. The wall thickness is 2 mm and the overall length is 50 mm.
Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 15 mm
rectangle internal length 58 mm
rectangle internal height 80 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀120 mm and a rectangular section with inner dimensions 60×60 mm. The shell thickness is 2 mm and the overall length is 60 mm.
Parameter Value Unit
cylinder outer diameter 120 mm
cylinder inlet length 30 mm
rectangle internal length 60 mm
rectangle internal height 60 mm
rectangle inlet length 10 mm
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 2 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀100 mm and a rectangular section with inner dimensions 97×47 mm. The shell thickness is 2 mm and the total length is 60 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 10 mm
rectangle internal length 97 mm
rectangle internal height 47 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 2 mm
chamfer chamfer on t...
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀76 mm and a rectangular section with inner dimensions 117×52 mm. The wall thickness is 2 mm and the overall length is 90 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 35 mm
rectangle internal length 117 mm
rectangle internal height 52 mm
rectangle inlet length 35 mm
offset Z 0 mm
offset Y 0 mm
total length 90 mm
thickness 2 mm
chamfer no chamfer
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀95 mm and a rectangular section with internal dimensions 126×121 mm. The wall thickness is 2 mm and the total length is 80 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 95 mm
cylinder inlet length 20 mm
rectangle internal length 126 mm
rectangle internal height 121 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer chamfer on t...
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀75 mm and a rectangular section with inner dimensions 50×84 mm. The wall thickness is 2 mm and the overall length is 60 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 25 mm
rectangle internal length 50 mm
rectangle internal height 84 mm
rectangle inlet length 10 mm
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 2 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀95 mm and a rectangular section with inner dimensions 126×121 mm. The wall thickness is 2 mm and the total length is 95 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 95 mm
cylinder inlet length 20 mm
rectangle internal length 126 mm
rectangle internal height 121 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 95 mm
thickness 2 mm
chamfer chamfer on t...
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀146 mm and a rectangular section with internal dimensions 107×53 mm. The shell thickness is 2 mm and the overall length is 64 mm. The adapter has an offset of 4 mm along the Y axis and 4 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 146 mm
cylinder inlet length 15 mm
rectangle internal length 107 mm
rectangle internal height 53 mm
rectangle inlet length 29 mm
offset Z 4 mm
offset Y 4 mm
total length 64 mm
thickness 2 mm
chamfer no chamfer
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀93 mm and a rectangular section with internal dimensions 200×100 mm. The shell thickness is 2 mm and the total length is 76.7 mm.
Parameter Value Unit
cylinder outer diameter 93 mm
cylinder inlet length 25 mm
rectangle internal length 200 mm
rectangle internal height 100 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 76.7 mm
thickness 2 mm
chamfer no chamfer
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀65 mm and a rectangular section with internal dimensions 56×71 mm. The wall thickness is 2 mm and the total length is 75 mm.
Parameter Value Unit
cylinder outer diameter 65 mm
cylinder inlet length 20 mm
rectangle internal length 56 mm
rectangle internal height 71 mm
rectangle inlet length 35 mm
offset Z 0 mm
offset Y 0 mm
total length 75 mm
thickness 2 mm
chamfer no chamfer