Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 90×45 mm, thickness 2 mm 📦#4486

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Download this 3D file in STL format of a round-to-rectangular adapter with an outer 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 50 mm. A chamfer is present on the outside of the cylindrical end.
Generation date: 2025-12-09
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 90×45 mm, thickness 2 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model4486-nb0_dd{id}.stl : 2.6 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 50 mm (≃1.97 in)
#2 cylinder inlet length 15 mm (≃0.59 in)
#3 rectangle internal length 90 mm (≃3.54 in)
#4 rectangle internal height 45 mm (≃1.77 in)
#5 rectangle inlet length 15 mm (≃0.59 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 50 mm (≃1.97 in)
#9 thickness 2 mm (≃0.08 in)
#10 chamfer chamfer on the outside
of the cylindrical tube
Metadata Value
Cylinder internal diameter 46 mm (≃1 13/16 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 

Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 99×45 mm, thickness 2 mm (📦 #3431)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 99×45 mm, thickness 2 mm
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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 3D file ⌀50 mm to 95×45 mm, thickness 2 mm (📦 #4488)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 95×45 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀50 mm and a rectangular section with inner dimensions 95×45 mm. The shell thickness is 2 mm and the overall length is 50 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 7 mm
rectangle internal length 95 mm
rectangle internal height 45 mm
rectangle inlet length 7 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 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
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀52 mm to 50×41 mm, thickness 2 mm (📦 #4519)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀52 mm to 50×41 mm, thickness 2 mm
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Parameter Value Unit
cylinder outer diameter 52 mm
cylinder inlet length 10 mm
rectangle internal length 50 mm
rectangle internal height 41 mm
rectangle inlet length 7 mm
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offset Y 0 mm
total length 50 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 80×45 mm, thickness 2 mm (📦 #3468)

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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 ⌀50 mm to 45×35 mm, thickness 2 mm (📦 #4489)

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Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 45×35 mm, thickness 2 mm
3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀50 mm and a rectangular section with inner dimensions 45×35 mm. The wall thickness is 2 mm and the overall length is 50 mm. A chamfer is present on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 10 mm
rectangle internal length 45 mm
rectangle internal height 35 mm
rectangle inlet length 7 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 90×50 mm, thickness 2 mm (📦 #4487)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 90×50 mm, thickness 2 mm
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀50 mm and a rectangular section with inner dimensions 90×50 mm. The shell thickness is 2 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 15 mm
rectangle internal length 90 mm
rectangle internal height 50 mm
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offset Y 0 mm
total length 50 mm
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Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 72×32 mm, thickness 2 mm (📦 #4082)

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Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 10 mm
rectangle internal length 72 mm
rectangle internal height 32 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 145×15 mm, thickness 2 mm (📦 #4490)

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Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 8 mm
rectangle internal length 145 mm
rectangle internal height 15 mm
rectangle inlet length 8 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀38 mm to 100×50 mm, thickness 2 mm (📦 #4359)

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Parameter Value Unit
cylinder outer diameter 38 mm
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rectangle internal height 50 mm
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offset Y 0 mm
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thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀44 mm to 50×25 mm, thickness 2 mm (📦 #3451)

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Parameter Value Unit
cylinder outer diameter 44 mm
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offset Y 0 mm
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thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀25 mm to 57×33 mm, thickness 2 mm (📦 #7108)

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Parameter Value Unit
cylinder outer diameter 25 mm
cylinder inlet length 30 mm
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rectangle internal height 33 mm
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total length 75 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 90×45 mm, thickness 2 mm (📦 #4485)

1 object(s) - format STL
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
thickness 2 mm
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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 ⌀44 mm to 50×25 mm, thickness 2 mm + offset (📦 #3454)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀44 mm to 50×25 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀44 mm and a rectangular section with internal dimensions 50×25 mm. The shell thickness is 2 mm and the total length is 60 mm. The adapter has an offset of 7 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 44 mm
cylinder inlet length 20 mm
rectangle internal length 50 mm
rectangle internal height 25 mm
rectangle inlet length 20 mm
offset Z 7 mm
offset Y 0 mm
total length 60 mm
thickness 2 mm
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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 ⌀52 mm to 77×33 mm, thickness 2 mm (📦 #2200)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀52 mm to 77×33 mm, thickness 2 mm
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
rectangle internal height 33 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀39 mm to 46×16 mm, thickness 2 mm + offset (📦 #9352)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀39 mm to 46×16 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀39 mm and a rectangular section with internal dimensions 46×16 mm. The wall thickness is 2 mm and the overall length is 57 mm. The adapter has an offset of 5 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 39 mm
cylinder inlet length 17 mm
rectangle internal length 46 mm
rectangle internal height 16 mm
rectangle inlet length 20 mm
offset Z 5 mm
offset Y 0 mm
total length 57 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀39 mm to 49×13 mm, thickness 2 mm + offset (📦 #4964)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀39 mm to 49×13 mm, thickness 2 mm + offset
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀39 mm and a rectangular section with internal dimensions 49×13 mm. The wall thickness is 2 mm and the overall length is 57 mm. The adapter has an offset of 5 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 39 mm
cylinder inlet length 17 mm
rectangle internal length 49 mm
rectangle internal height 13 mm
rectangle inlet length 20 mm
offset Z 5 mm
offset Y 0 mm
total length 57 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 80×80 mm, thickness 2 mm (📦 #6349)

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

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 3D file ⌀30 mm to 100×15 mm, thickness 2 mm + offset (📦 #8827)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀30 mm to 100×15 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀30 mm and a rectangular section with internal dimensions 100×15 mm. The shell thickness is 2 mm and the total length is 50 mm. The adapter has an offset of 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 30 mm
cylinder inlet length 20 mm
rectangle internal length 100 mm
rectangle internal height 15 mm
rectangle inlet length 10 mm
offset Z 10 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀78 mm to 58×80 mm, thickness 2 mm (📦 #7937)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀78 mm to 58×80 mm, thickness 2 mm
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

Round-to-Rectangular Tube Adapter STL file ⌀65 mm to 47×23 mm, thickness 2 mm (📦 #2800)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀65 mm to 47×23 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀65 mm and a rectangular section with inner dimensions 47×23 mm. The wall thickness is 2 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 65 mm
cylinder inlet length 24 mm
rectangle internal length 47 mm
rectangle internal height 23 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 110×80 mm, thickness 2 mm (📦 #3892)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 110×80 mm, thickness 2 mm
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

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 ⌀65 mm to 50×63 mm, thickness 2 mm (📦 #2228)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀65 mm to 50×63 mm, thickness 2 mm
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀65 mm and a rectangular section with inner dimensions 50×63 mm. The shell thickness is 2 mm and the overall length is 80 mm. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 65 mm
cylinder inlet length 30 mm
rectangle internal length 50 mm
rectangle internal height 63 mm
rectangle inlet length 30 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 97×47 mm, thickness 2 mm (📦 #2920)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 97×47 mm, thickness 2 mm
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...

Round-to-Rectangular Tube Adapter STL file ⌀29 mm to 100×50 mm, thickness 2 mm (📦 #4305)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀29 mm to 100×50 mm, thickness 2 mm
Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀29 mm and a rectangular section with internal dimensions 100×50 mm. The wall thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 29 mm
cylinder inlet length 7 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 10 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀31.7 mm to 50×16 mm, thickness 2 mm + offset (📦 #7718)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀31.7 mm to 50×16 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀31.7 mm and a rectangular section with inner dimensions 50×16 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 31.7 mm
cylinder inlet length 10 mm
rectangle internal length 50 mm
rectangle internal height 16 mm
rectangle inlet length 10 mm
offset Z 10 mm
offset Y 0 mm
total length 55 mm
thickness 2 mm
chamfer no chamfer