Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 100×250 mm, thickness 2 mm 📦#10415

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File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 100×250 mm. The shell thickness is 2 mm and the total length is 165 mm.
Generation date: 2026-07-26
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 100×250 mm, thickness 2 mm

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  • round-to-rectangular-adapter-d_model10415-nb0_dd{id}.stl : 3.5 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 30 mm (≃1 3/16 in)
#3 rectangle internal length 100 mm (≃3 15/16 in)
#4 rectangle internal height 250 mm (≃9.84 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 165 mm (≃6 1/2 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 

Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀120 mm and a rectangular section with internal dimensions 120×120 mm. The shell thickness is 2 mm and the overall length is 200 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
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 0 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
chamfer chamfer on t...
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀120 mm and a rectangular section with internal dimensions 120×120 mm. The shell thickness is 3 mm and the total length is 200 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 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
chamfer no chamfer
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
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀84 mm and a rectangular section with internal dimensions 85×85 mm. The shell thickness is 2 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 84 mm
cylinder inlet length 30 mm
rectangle internal length 85 mm
rectangle internal height 85 mm
rectangle inlet length 85 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀75 mm and a rectangular section with internal dimensions 84×80 mm. The wall thickness is 2 mm and the total length is 145 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 100 mm
offset Z 0 mm
offset Y 0 mm
total length 145 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 ⌀126.5 mm and a rectangular section with inner dimensions 100×100 mm. The wall thickness is 3 mm and the total length is 200 mm.
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
chamfer no chamfer
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀101 mm and a rectangular section with internal dimensions 170×124.5 mm. The wall thickness is 3 mm and the total length is 138 mm. The adapter has an offset of 11 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 101 mm
cylinder inlet length 25 mm
rectangle internal length 170 mm
rectangle internal height 124.5 mm
rectangle inlet length 83 mm
offset Z 0 mm
offset Y 11 mm
total length 138 mm
thickness 3 mm
chamfer no chamfer
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀101 mm and a rectangular section with inner dimensions 170×124.5 mm. The shell thickness is 3 mm and the total length is 130.7 mm. The adapter has an offset of 11 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 101 mm
cylinder inlet length 25 mm
rectangle internal length 170 mm
rectangle internal height 124.5 mm
rectangle inlet length 83 mm
offset Z 0 mm
offset Y 11 mm
total length 130.7 mm
thickness 3 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 30×200 mm. The shell thickness is 3 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 20 mm
rectangle internal length 30 mm
rectangle internal height 200 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀70 mm and a rectangular section with internal dimensions 70×90 mm. The shell thickness is 2 mm and the total length is 160 mm. The adapter has an offset of 5 mm along the Y axis and 5 mm along the Z axis. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 70 mm
cylinder inlet length 50 mm
rectangle internal length 70 mm
rectangle internal height 90 mm
rectangle inlet length 90 mm
offset Z 5 mm
offset Y 5 mm
total length 160 mm
thickness 2 mm
chamfer chamfer on t...
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀156 mm and a rectangular section with inner dimensions 220×220 mm. The wall thickness is 2 mm and the total length is 130 mm.
Parameter Value Unit
cylinder outer diameter 156 mm
cylinder inlet length 50 mm
rectangle internal length 220 mm
rectangle internal height 220 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 130 mm
thickness 2 mm
chamfer no chamfer
3D 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 150×80 mm. The shell 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 80 mm
rectangle inlet length 80 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer chamfer on t...
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀154 mm and a rectangular section with inner dimensions 210×90 mm. The wall thickness is 2 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 154 mm
cylinder inlet length 30 mm
rectangle internal length 210 mm
rectangle internal height 90 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 200 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 ⌀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
rectangle internal length 44 mm
rectangle internal height 194 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀125 mm and a rectangular section with internal dimensions 55×205 mm. The shell thickness is 2 mm and the total length is 299 mm.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 50 mm
rectangle internal length 55 mm
rectangle internal height 205 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 299 mm
thickness 2 mm
chamfer no chamfer
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
offset Z 20 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
chamfer chamfer on t...
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀76 mm and a rectangular section with internal dimensions 145×80 mm. The wall thickness is 2 mm and the total length is 190 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 50 mm
rectangle internal length 145 mm
rectangle internal height 80 mm
rectangle inlet length 70 mm
offset Z 0 mm
offset Y 0 mm
total length 190 mm
thickness 2 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀110 mm and a rectangular section with internal dimensions 50×120 mm. The shell thickness is 2 mm and the total length is 200 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
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 adapter with an outer diameter of ⌀155 mm and a rectangular section with internal dimensions 144×127 mm. The shell thickness is 3 mm and the total length is 108 mm.
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
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 200×300 mm. The wall thickness is 2 mm and the total length is 100 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 300 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀75 mm and a rectangular section with internal dimensions 215×195 mm. The shell thickness is 2 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 20 mm
rectangle internal length 215 mm
rectangle internal height 195 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer
Download this 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 100×100 mm. The shell thickness is 2 mm and the total length is 220 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
offset Z 0 mm
offset Y 0 mm
total length 220 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 ⌀106 mm and a rectangular section with inner dimensions 94.6×73 mm. The shell thickness is 2 mm and the total length is 200 mm. The adapter has an offset of 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 106 mm
cylinder inlet length 50 mm
rectangle internal length 94.6 mm
rectangle internal height 73 mm
rectangle inlet length 100 mm
offset Z 25 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
chamfer no chamfer