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Round-to-Rectangular Tube Adapter STL file ⌀206 mm to 300×60 mm, thickness 3 mm + offset 📦#2084

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3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀206 mm and a rectangular section with inner dimensions 300×60 mm. The wall thickness is 3 mm and the overall length is 220 mm. The adapter has an offset of 44 mm along the Y axis and 44 mm along the Z axis. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Generation date: 2025-09-29
3D Model Round-to-Rectangular Tube Adapter STL file ⌀206 mm to 300×60 mm, thickness 3 mm + offset

3D model download

Free
  • round-to-rectangular-adapter-d_model2084-nb0_dd{id}.stl : 1.8 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)
Safe download

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 206 mm
#2 cylinder inlet length 10 mm
#3 rectangle internal length 300 mm
#4 rectangle internal height 60 mm
#5 rectangle inlet length 50 mm
#6 offset Z 44 mm
#7 offset Y 44 mm
#8 total length 220 mm
#9 thickness 3 mm
#10 chamfer chamfers on the outside
of the cylindrical tube
and on the inside of
the rectangular tube
illustration of the parameters
Representation of the parameters

  • 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 ⌀204 mm to 300×60 mm, thickness 3 mm + offset (📦 #2083)

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Round-to-Rectangular Tube Adapter STL file ⌀204 mm to 300×60 mm, thickness 3 mm + offset
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Parameter Value Unit
cylinder outer diameter 204 mm
cylinder inlet length 10 mm
rectangle internal length 300 mm
rectangle internal height 60 mm
rectangle inlet length 50 mm
offset Z 44 mm
offset Y 44 mm
total length 148 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 250×50 mm, thickness 2 mm + offset (📦 #2138)

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Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 250×50 mm, thickness 2 mm + offset
Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀120 mm and a rectangular section with inner dimensions 250×50 mm. The wall thickness is 2 mm and the total length is 165 mm. The adapter has an offset of 30 mm along the Y axis and 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 120 mm
cylinder inlet length 5 mm
rectangle internal length 250 mm
rectangle internal height 50 mm
rectangle inlet length 60 mm
offset Z 10 mm
offset Y 30 mm
total length 165 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 200×20 mm, thickness 3 mm + offset (📦 #1620)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 200×20 mm, thickness 3 mm + offset
Download this 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 200×20 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 60 mm along the Y axis. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 20 mm
rectangle inlet length 50 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 135×75 mm, thickness 2 mm + offset (📦 #1975)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 135×75 mm, thickness 2 mm + offset
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Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 35 mm
rectangle internal length 135 mm
rectangle internal height 75 mm
rectangle inlet length 60 mm
offset Z 30 mm
offset Y 30 mm
total length 160 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 106×50 mm, thickness 3 mm + offset (📦 #1886)

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Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 106×50 mm, thickness 3 mm + offset
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Parameter Value Unit
cylinder outer diameter 81 mm
cylinder inlet length 20 mm
rectangle internal length 106 mm
rectangle internal height 50 mm
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Round-to-Rectangular Tube Adapter STL file ⌀109 mm to 110×55 mm, thickness 2 mm + offset (📦 #2333)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀109 mm to 110×55 mm, thickness 2 mm + offset
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Parameter Value Unit
cylinder outer diameter 109 mm
cylinder inlet length 20 mm
rectangle internal length 110 mm
rectangle internal height 55 mm
rectangle inlet length 20 mm
offset Z 37.5 mm
offset Y 20 mm
total length 115 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀154 mm to 80×50 mm, thickness 2 mm + offset (📦 #1652)

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Parameter Value Unit
cylinder outer diameter 154 mm
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rectangle internal length 80 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀150 mm to 80×50 mm, thickness 3 mm + offset (📦 #1571)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀150 mm to 80×50 mm, thickness 3 mm + offset
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Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 mm
rectangle internal length 80 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
offset Z 25 mm
offset Y 25 mm
total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀109 mm to 110×55 mm, thickness 2 mm + offset (📦 #2332)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀109 mm to 110×55 mm, thickness 2 mm + offset
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Parameter Value Unit
cylinder outer diameter 109 mm
cylinder inlet length 20 mm
rectangle internal length 110 mm
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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 120×40 mm, thickness 2 mm + offset (📦 #1938)

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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL 3D file ⌀109 mm to 55×108 mm, thickness 2 mm + offset (📦 #2334)

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Parameter Value Unit
cylinder outer diameter 109 mm
cylinder inlet length 20 mm
rectangle internal length 55 mm
rectangle internal height 108 mm
rectangle inlet length 20 mm
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offset Y 20 mm
total length 115 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀109 mm to 55×110 mm, thickness 2 mm + offset (📦 #2335)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀109 mm to 55×110 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀109 mm and a rectangular section with inner dimensions 55×110 mm. The shell thickness is 2 mm and the total length is 115 mm. The adapter has an offset of 20 mm along the Y axis and 37.5 mm along the Z axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 109 mm
cylinder inlet length 20 mm
rectangle internal length 55 mm
rectangle internal height 110 mm
rectangle inlet length 20 mm
offset Z 37.5 mm
offset Y 20 mm
total length 115 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×25 mm, thickness 3 mm + offset (📦 #2258)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×25 mm, thickness 3 mm + offset
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 160×25 mm. The shell thickness is 3 mm and the overall length is 250 mm. The adapter has an offset of 25 mm along the Y axis and 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 50 mm
rectangle internal length 160 mm
rectangle internal height 25 mm
rectangle inlet length 100 mm
offset Z 25 mm
offset Y 25 mm
total length 250 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀165 mm to 300×120 mm, thickness 3 mm + offset (📦 #2032)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀165 mm to 300×120 mm, thickness 3 mm + offset
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀165 mm and a rectangular section with inner dimensions 300×120 mm. The shell thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 35 mm along the Z axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 165 mm
cylinder inlet length 30 mm
rectangle internal length 300 mm
rectangle internal height 120 mm
rectangle inlet length 40 mm
offset Z 35 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 60×30 mm, thickness 2 mm + offset (📦 #2166)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 60×30 mm, thickness 2 mm + offset
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀60 mm and a rectangular section with inner dimensions 60×30 mm. The wall thickness is 2 mm and the total length is 80 mm. The adapter has an offset of 30 mm along the Y axis and 30 mm along the Z axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
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 30 mm
offset Y 30 mm
total length 80 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 60×30 mm, thickness 2 mm + offset (📦 #1501)

1 object(s) - format STL (4.5/5) 2 vote(s)
Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 60×30 mm, thickness 2 mm + offset
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀60 mm and a rectangular section with internal dimensions 60×30 mm. The shell thickness is 2 mm and the total length is 80 mm. The adapter has an offset of 30 mm along the Y axis and 30 mm along the Z axis. A chamfer is present on the inside of the rectangular end to ease insertion.
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 30 mm
offset Y 30 mm
total length 80 mm
thickness 2 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀160 mm to 300×120 mm, thickness 3 mm + offset (📦 #2008)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀160 mm to 300×120 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀160 mm and a rectangular section with internal dimensions 300×120 mm. The wall thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 35 mm along the Z axis. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 160 mm
cylinder inlet length 30 mm
rectangle internal length 300 mm
rectangle internal height 120 mm
rectangle inlet length 80 mm
offset Z 35 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀122 mm to 220×90 mm, thickness 3 mm + offset (📦 #2158)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀122 mm to 220×90 mm, thickness 3 mm + offset
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀122 mm and a rectangular section with internal dimensions 220×90 mm. The wall thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 30 mm along the Z axis. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 122 mm
cylinder inlet length 25 mm
rectangle internal length 220 mm
rectangle internal height 90 mm
rectangle inlet length 35 mm
offset Z 30 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀206 mm to 300×50 mm, thickness 3 mm (📦 #2081)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀206 mm to 300×50 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀206 mm and a rectangular section with internal dimensions 300×50 mm. The shell thickness is 3 mm and the overall length is 150 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 206 mm
cylinder inlet length 10 mm
rectangle internal length 300 mm
rectangle internal height 50 mm
rectangle inlet length 47 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀124 mm to 180×180 mm, thickness 2 mm + offset (📦 #2164)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀124 mm to 180×180 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀124 mm and a rectangular section with inner dimensions 180×180 mm. The wall thickness is 2 mm and the total length is 100 mm. The adapter has an offset of 20 mm along the Y axis and 20 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 124 mm
cylinder inlet length 40 mm
rectangle internal length 180 mm
rectangle internal height 180 mm
rectangle inlet length 20 mm
offset Z 20 mm
offset Y 20 mm
total length 100 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀150 mm to 235×80 mm, thickness 2 mm + offset (📦 #1751)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀150 mm to 235×80 mm, thickness 2 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀150 mm and a rectangular section with inner dimensions 235×80 mm. The wall thickness is 2 mm and the total length is 235 mm. The adapter has an offset of 60 mm along the Z axis. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 30 mm
rectangle internal length 235 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 60 mm
offset Y 0 mm
total length 235 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀150 mm to 235×80 mm, thickness 2 mm + offset (📦 #1752)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀150 mm to 235×80 mm, thickness 2 mm + offset
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀150 mm and a rectangular section with inner dimensions 235×80 mm. The shell thickness is 2 mm and the overall length is 200 mm. The adapter has an offset of 60 mm along the Z axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 30 mm
rectangle internal length 235 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 60 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 105×50 mm, thickness 2 mm + offset (📦 #1653)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 105×50 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀80 mm and a rectangular section with internal dimensions 105×50 mm. The wall thickness is 2 mm and the total length is 150 mm. The adapter has an offset of 25 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 50 mm
rectangle internal length 105 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 25 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 80×80 mm, thickness 2 mm + offset (📦 #2048)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 80×80 mm, thickness 2 mm + offset
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀90 mm and a rectangular section with inner dimensions 80×80 mm. The shell thickness is 2 mm and the overall length is 150 mm. The adapter has an offset of 25 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 50 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 25 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀125 mm to 200×60 mm, thickness 3 mm + offset (📦 #1676)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀125 mm to 200×60 mm, thickness 3 mm + offset
Download this 3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀125 mm and a rectangular section with internal dimensions 200×60 mm. The shell thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 60 mm along the Z axis. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 60 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀210 mm to 200×60 mm, thickness 3 mm + offset (📦 #1539)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀210 mm to 200×60 mm, thickness 3 mm + offset
Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀210 mm and a rectangular section with inner dimensions 200×60 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 60 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 210 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 60 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀200 mm to 200×30 mm, thickness 3 mm + offset (📦 #2035)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀200 mm to 200×30 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀200 mm and a rectangular section with internal dimensions 200×30 mm. The shell thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 60 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 200 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 30 mm
rectangle inlet length 30 mm
offset Z 60 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 60×40 mm, thickness 3 mm + offset (📦 #1475)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 60×40 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀120 mm and a rectangular section with inner dimensions 60×40 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. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 120 mm
cylinder inlet length 30 mm
rectangle internal length 60 mm
rectangle internal height 40 mm
rectangle inlet length 30 mm
offset Z 10 mm
offset Y 10 mm
total length 100 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀160 mm to 300×120 mm, thickness 3 mm (📦 #2007)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀160 mm to 300×120 mm, thickness 3 mm
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀160 mm and a rectangular section with internal dimensions 300×120 mm. The wall thickness is 3 mm and the overall length is 200 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 160 mm
cylinder inlet length 30 mm
rectangle internal length 300 mm
rectangle internal height 120 mm
rectangle inlet length 80 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...