Custom Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 80×60 mm, thickness 2 mm 📦#7607

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Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀75 mm and a rectangular section with inner dimensions 80×60 mm. The wall thickness is 2 mm and the overall length is 150 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Generation date: 2026-03-04
3D Model Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 80×60 mm, thickness 2 mm

3D model download

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  • round-to-rectangular-adapter-d_model7607-nb0_dd{id}.stl : 932.2 Ko
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 75 mm (≃2 15/16 in)
#2 cylinder inlet length 25 mm (≃0.98 in)
#3 rectangle internal length 80 mm (≃3.15 in)
#4 rectangle internal height 60 mm (≃2 3/8 in)
#5 rectangle inlet length 9 mm (≃0.35 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 150 mm (≃5.91 in)
#9 thickness 2 mm (≃0.08 in)
#10 chamfer chamfer on the outside
of the cylindrical tube
Metadata Value
Cylinder internal diameter 71 mm (≃2.80 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 

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 60×60 mm, thickness 2 mm (📦 #1534)

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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 60×60 mm, thickness 2 mm
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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
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Round-to-Rectangular Tube Adapter STL 3D file ⌀72 mm to 100×36 mm, thickness 2 mm (📦 #4797)

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Parameter Value Unit
cylinder outer diameter 72 mm
cylinder inlet length 25 mm
rectangle internal length 100 mm
rectangle internal height 36 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 50×50 mm, thickness 2 mm (📦 #2141)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 50×50 mm, thickness 2 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 50×50 mm. The shell thickness is 2 mm and the total length is 200 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 200 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 50×50 mm, thickness 2 mm (📦 #1497)

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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 50×50 mm, thickness 2 mm
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
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total length 100 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 50×50 mm, thickness 2 mm (📦 #1891)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 50×50 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀50 mm and a rectangular section with internal dimensions 50×50 mm. The shell thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 50 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
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thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 90×45 mm, thickness 2 mm (📦 #4485)

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Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 90×45 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀50 mm and a rectangular section with inner dimensions 90×45 mm. The wall thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 20 mm
rectangle internal length 90 mm
rectangle internal height 45 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 100×45 mm, thickness 2 mm (📦 #3430)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 100×45 mm, thickness 2 mm
Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀50 mm and a rectangular section with internal dimensions 100×45 mm. The shell 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 50 mm
cylinder inlet length 20 mm
rectangle internal length 100 mm
rectangle internal height 45 mm
rectangle inlet length 20 mm
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offset Y 0 mm
total length 80 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀52 mm to 77×33 mm, thickness 2 mm (📦 #2200)

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Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀52 mm and a rectangular section with inner dimensions 77×33 mm. The wall thickness is 2 mm and the total length is 100 mm. A chamfer is applied on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 52 mm
cylinder inlet length 20 mm
rectangle internal length 77 mm
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rectangle inlet length 20 mm
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offset Y 0 mm
total length 100 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 120×70 mm, thickness 2 mm (📦 #2668)

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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
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thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀65 mm to 50×63 mm, thickness 2 mm (📦 #2228)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀65 mm to 50×63 mm, thickness 2 mm
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Parameter Value Unit
cylinder outer diameter 65 mm
cylinder inlet length 30 mm
rectangle internal length 50 mm
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Parameter Value Unit
cylinder outer diameter 50 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 55×30 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀75 mm and a rectangular section with internal dimensions 55×30 mm. The shell thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 40 mm
rectangle internal length 55 mm
rectangle internal height 30 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
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thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 80×45 mm, thickness 2 mm (📦 #3468)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 80×45 mm, thickness 2 mm
Download this 3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀50 mm and a rectangular section with inner dimensions 80×45 mm. The shell thickness is 2 mm and the total length is 70 mm. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 25 mm
rectangle internal length 80 mm
rectangle internal height 45 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 70 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 30×30 mm, thickness 2 mm + offset (📦 #2024)

1 object(s) - format STL (5.0/5) 1 vote(s)
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 30×30 mm, thickness 2 mm + offset
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 30×30 mm. The shell thickness is 2 mm and the total length is 100 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 100 mm
cylinder inlet length 20 mm
rectangle internal length 30 mm
rectangle internal height 30 mm
rectangle inlet length 20 mm
offset Z 2 mm
offset Y 2 mm
total length 100 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 120×50 mm, thickness 2 mm (📦 #9156)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 120×50 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀76 mm and a rectangular section with inner dimensions 120×50 mm. The wall thickness is 2 mm and the total length is 90 mm. A chamfer is applied on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 32 mm
rectangle internal length 120 mm
rectangle internal height 50 mm
rectangle inlet length 30 mm
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offset Y 0 mm
total length 90 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀64 mm to 48.6×49 mm, thickness 2 mm (📦 #8720)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀64 mm to 48.6×49 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀64 mm and a rectangular section with inner dimensions 48.6×49 mm. The wall thickness is 2 mm and the overall length is 65 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 64 mm
cylinder inlet length 40 mm
rectangle internal length 48.6 mm
rectangle internal height 49 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 65 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 99×45 mm, thickness 2 mm (📦 #3431)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 99×45 mm, thickness 2 mm
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀50 mm and a rectangular section with internal dimensions 99×45 mm. The wall thickness is 2 mm and the total length is 60 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 20 mm
rectangle internal length 99 mm
rectangle internal height 45 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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Round-to-Rectangular Tube Adapter STL file ⌀95 mm to 126×121 mm, thickness 2 mm (📦 #9175)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀95 mm to 126×121 mm, thickness 2 mm
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...

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 106×49 mm, thickness 2 mm (📦 #5029)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 106×49 mm, thickness 2 mm
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

Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 84×80 mm, thickness 2 mm (📦 #7610)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 84×80 mm, thickness 2 mm
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

Round-to-Rectangular Tube Adapter STL 3D file ⌀70 mm to 60×30 mm, thickness 2 mm (📦 #1510)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀70 mm to 60×30 mm, thickness 2 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀70 mm and a rectangular section with internal dimensions 60×30 mm. The wall thickness is 2 mm and the total length is 80 mm. A chamfer is present on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 70 mm
cylinder inlet length 10 mm
rectangle internal length 60 mm
rectangle internal height 30 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer chamfer on t...

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

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 119×68 mm, thickness 2 mm
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

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 119×72 mm, thickness 2 mm (📦 #2600)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 119×72 mm, thickness 2 mm
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

Round-to-Rectangular Tube Adapter STL 3D file ⌀65 mm to 60×30 mm, thickness 2 mm (📦 #1509)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀65 mm to 60×30 mm, thickness 2 mm
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀65 mm and a rectangular section with inner dimensions 60×30 mm. The wall thickness is 2 mm and the overall length is 80 mm. A chamfer is present on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 65 mm
cylinder inlet length 10 mm
rectangle internal length 60 mm
rectangle internal height 30 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 60×30 mm, thickness 2 mm (📦 #1508)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 60×30 mm, thickness 2 mm
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀60 mm and a rectangular section with internal dimensions 60×30 mm. The wall thickness is 2 mm and the total length is 80 mm. A chamfer is present on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 10 mm
rectangle internal length 60 mm
rectangle internal height 30 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀32 mm to 80×5 mm, thickness 2 mm (📦 #8448)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀32 mm to 80×5 mm, thickness 2 mm
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀32 mm and a rectangular section with inner dimensions 80×5 mm. The wall thickness is 2 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 30 mm
rectangle internal length 80 mm
rectangle internal height 5 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀36 mm to 50×5 mm, thickness 2 mm (📦 #4358)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀36 mm to 50×5 mm, thickness 2 mm
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀36 mm and a rectangular section with internal dimensions 50×5 mm. The wall thickness is 2 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 36 mm
cylinder inlet length 20 mm
rectangle internal length 50 mm
rectangle internal height 5 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 50×84 mm, thickness 2 mm (📦 #7644)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 50×84 mm, thickness 2 mm
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

Round-to-Rectangular Tube Adapter STL 3D file ⌀32 mm to 90×5 mm, thickness 2 mm (📦 #8449)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀32 mm to 90×5 mm, thickness 2 mm
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀32 mm and a rectangular section with inner dimensions 90×5 mm. The wall thickness is 2 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 30 mm
rectangle internal length 90 mm
rectangle internal height 5 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer no chamfer