Custom Round-to-Rectangular Tube Adapter STL file ⌀73 mm to 122×72 mm, thickness 3 mm 📦#9882

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Download this 3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀73 mm and a rectangular section with inner dimensions 122×72 mm. The shell thickness is 3 mm and the total length is 150 mm.
Generation date: 2026-07-07
3D Model Round-to-Rectangular Tube Adapter STL file ⌀73 mm to 122×72 mm, thickness 3 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model9882-nb0_dd{id}.stl : 1.1 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 73 mm (≃2 7/8 in)
#2 cylinder inlet length 20 mm (≃0.79 in)
#3 rectangle internal length 122 mm (≃4 13/16 in)
#4 rectangle internal height 72 mm (≃2.83 in)
#5 rectangle inlet length 30 mm (≃1 3/16 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 3 mm (≃1/8 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 67 mm (≃2 5/8 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 ⌀71 mm to 122×72 mm, thickness 3 mm (📦 #9884)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀71 mm to 122×72 mm, thickness 3 mm
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀71 mm and a rectangular section with inner dimensions 122×72 mm. The wall thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 71 mm
cylinder inlet length 20 mm
rectangle internal length 122 mm
rectangle internal height 72 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 121×70 mm, thickness 3 mm (📦 #9904)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 121×70 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀75 mm and a rectangular section with inner dimensions 121×70 mm. The wall thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 20 mm
rectangle internal length 121 mm
rectangle internal height 70 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 122×72 mm, thickness 3 mm (📦 #9880)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 122×72 mm, thickness 3 mm
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 122×72 mm. The wall thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 19 mm
rectangle internal length 122 mm
rectangle internal height 72 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀68 mm to 122×72 mm, thickness 3 mm (📦 #9883)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀68 mm to 122×72 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀68 mm and a rectangular section with internal dimensions 122×72 mm. The wall thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 68 mm
cylinder inlet length 20 mm
rectangle internal length 122 mm
rectangle internal height 72 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀78 mm to 122×73 mm, thickness 3 mm (📦 #9840)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀78 mm to 122×73 mm, thickness 3 mm
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀78 mm and a rectangular section with inner dimensions 122×73 mm. The shell thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 78 mm
cylinder inlet length 20 mm
rectangle internal length 122 mm
rectangle internal height 73 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 100×50 mm, thickness 3 mm (📦 #2858)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 100×50 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀90 mm and a rectangular section with internal dimensions 100×50 mm. The wall thickness is 3 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 20 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀48.5 mm to 120×120 mm, thickness 3 mm (📦 #6869)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀48.5 mm to 120×120 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀48.5 mm and a rectangular section with internal dimensions 120×120 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 48.5 mm
cylinder inlet length 20 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 120×120 mm, thickness 3 mm (📦 #6452)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 120×120 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀60 mm and a rectangular section with internal dimensions 120×120 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 30 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
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offset Y 0 mm
total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 92×92 mm, thickness 3 mm (📦 #6516)

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Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 92×92 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀76 mm and a rectangular section with inner dimensions 92×92 mm. The wall thickness is 3 mm and the total length is 90 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
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rectangle internal length 92 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀102 mm to 170×100 mm, thickness 3 mm (📦 #1680)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀102 mm to 170×100 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀102 mm and a rectangular section with internal dimensions 170×100 mm. The wall thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 102 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 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 100×50 mm, thickness 3 mm + offset (📦 #1754)

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Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 100 mm
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Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀106 mm and a rectangular section with inner dimensions 111×55 mm. The wall thickness is 3 mm and the total length is 100 mm.
Parameter Value Unit
cylinder outer diameter 106 mm
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rectangle internal length 111 mm
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offset Y 0 mm
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thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀48.5 mm to 80×80 mm, thickness 3 mm (📦 #6761)

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Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀48.5 mm and a rectangular section with inner dimensions 80×80 mm. The wall thickness is 3 mm and the overall length is 90 mm.
Parameter Value Unit
cylinder outer diameter 48.5 mm
cylinder inlet length 25 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 90 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 120×120 mm, thickness 3 mm (📦 #6453)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 120×120 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀40 mm and a rectangular section with internal dimensions 120×120 mm. The wall thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 40 mm
cylinder inlet length 30 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 17 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 152×45 mm, thickness 3 mm (📦 #3349)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 152×45 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀50 mm and a rectangular section with internal dimensions 152×45 mm. The wall thickness is 3 mm and the overall length is 110.3 mm. A chamfer is present on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 25 mm
rectangle internal length 152 mm
rectangle internal height 45 mm
rectangle inlet length 25 mm
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offset Y 0 mm
total length 110.3 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 105×105 mm, thickness 3 mm (📦 #1746)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 105×105 mm, thickness 3 mm
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 105×105 mm. The shell thickness is 3 mm and the overall length is 80 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 30 mm
rectangle internal length 105 mm
rectangle internal height 105 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 105×105 mm, thickness 3 mm (📦 #1748)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 105×105 mm, thickness 3 mm
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀75 mm and a rectangular section with inner dimensions 105×105 mm. The shell thickness is 3 mm and the overall length is 80 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 30 mm
rectangle internal length 105 mm
rectangle internal height 105 mm
rectangle inlet length 19 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀81 mm to 108×52 mm, thickness 3 mm + offset (📦 #4011)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀81 mm to 108×52 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀81 mm and a rectangular section with internal dimensions 108×52 mm. The wall thickness is 3 mm and the total length is 120 mm. The adapter has an offset of 10 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 81 mm
cylinder inlet length 15 mm
rectangle internal length 108 mm
rectangle internal height 52 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 10 mm
total length 120 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 90×40 mm, thickness 3 mm + offset (📦 #7198)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 90×40 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀76 mm and a rectangular section with internal dimensions 90×40 mm. The wall thickness is 3 mm and the overall length is 150 mm. The adapter has an offset of 10 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 20 mm
rectangle internal length 90 mm
rectangle internal height 40 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 10 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀65 mm to 56×70 mm, thickness 3 mm (📦 #8712)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀65 mm to 56×70 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀65 mm and a rectangular section with inner dimensions 56×70 mm. The shell thickness is 3 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 70 mm
rectangle inlet length 35 mm
offset Z 0 mm
offset Y 0 mm
total length 75 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 100×50 mm, thickness 3 mm + offset (📦 #1966)

1 object(s) - format STL (5.0/5) 1 vote(s)
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 100×50 mm, thickness 3 mm + offset
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 100×50 mm. The shell thickness is 3 mm and the total length is 100 mm. The adapter has an offset of 3 mm along the Y axis and 3 mm along the Z axis. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 30 mm
offset Z 3 mm
offset Y 3 mm
total length 100 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL 3D file ⌀40 mm to 100×100 mm, thickness 3 mm + offset (📦 #2016)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀40 mm to 100×100 mm, thickness 3 mm + offset
Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀40 mm and a rectangular section with inner dimensions 100×100 mm. The shell thickness is 3 mm and the total length is 100 mm. The adapter has an offset of 1 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 40 mm
cylinder inlet length 10 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 9 mm
offset Z 0 mm
offset Y 1 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀125 mm to 60×60 mm, thickness 3 mm (📦 #1502)

1 object(s) - format STL (5.0/5) 1 vote(s)
Round-to-Rectangular Tube Adapter STL file ⌀125 mm to 60×60 mm, thickness 3 mm
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀125 mm and a rectangular section with internal dimensions 60×60 mm. The wall thickness is 3 mm and the total length is 120 mm.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 20 mm
rectangle internal length 60 mm
rectangle internal height 60 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀119 mm to 114×79 mm, thickness 3 mm + offset (📦 #2248)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀119 mm to 114×79 mm, thickness 3 mm + offset
Download this 3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀119 mm and a rectangular section with inner dimensions 114×79 mm. The shell thickness is 3 mm and the total length is 100 mm. The adapter has an offset of 3 mm along the Y axis and 10.5 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 119 mm
cylinder inlet length 30 mm
rectangle internal length 114 mm
rectangle internal height 79 mm
rectangle inlet length 30 mm
offset Z 10.5 mm
offset Y 3 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀96 mm to 67×58 mm, thickness 3 mm (📦 #10040)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀96 mm to 67×58 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀96 mm and a rectangular section with internal dimensions 67×58 mm. The shell thickness is 3 mm and the overall length is 70 mm.
Parameter Value Unit
cylinder outer diameter 96 mm
cylinder inlet length 18 mm
rectangle internal length 67 mm
rectangle internal height 58 mm
rectangle inlet length 32 mm
offset Z 0 mm
offset Y 0 mm
total length 70 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 102×102 mm, thickness 3 mm (📦 #1759)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 102×102 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀75 mm and a rectangular section with inner dimensions 102×102 mm. The wall thickness is 3 mm and the total length is 68 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 30 mm
rectangle internal length 102 mm
rectangle internal height 102 mm
rectangle inlet length 18 mm
offset Z 0 mm
offset Y 0 mm
total length 68 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 106×50 mm, thickness 3 mm + offset (📦 #1885)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 106×50 mm, thickness 3 mm + offset
Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀81 mm and a rectangular section with inner dimensions 106×50 mm. The shell thickness is 3 mm and the overall length is 100 mm. The adapter has an offset of 10 mm along the Y axis and 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 81 mm
cylinder inlet length 20 mm
rectangle internal length 106 mm
rectangle internal height 50 mm
rectangle inlet length 30 mm
offset Z 10 mm
offset Y 10 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 120×120 mm, thickness 3 mm (📦 #6451)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 120×120 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀60 mm and a rectangular section with inner dimensions 120×120 mm. The shell thickness is 3 mm and the total length is 80 mm.
Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 30 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 17 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 80×80 mm, thickness 3 mm (📦 #2123)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 80×80 mm, thickness 3 mm
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 80×80 mm. The shell thickness is 3 mm and the overall length is 65 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 15 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 65 mm
thickness 3 mm
chamfer no chamfer