Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀105.4 mm to 240.4×120 mm, thickness 2 mm + offset 📦#5989

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Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀105.4 mm and a rectangular section with inner dimensions 240.4×120 mm. The wall thickness is 2 mm and the overall length is 250 mm. The adapter has an offset of 50 mm along the Y axis. A chamfer is applied on the inside of the rectangular end to ease insertion.
Generation date: 2026-01-05
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀105.4 mm to 240.4×120 mm, thickness 2 mm + offset

3D model download

Free
  • round-to-rectangular-adapter-d_model5989-nb0_dd{id}.stl : 1.7 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 105.4 mm (≃4.15 in)
#2 cylinder inlet length 100 mm (≃3 15/16 in)
#3 rectangle internal length 240.4 mm (≃9.46 in)
#4 rectangle internal height 120 mm (≃4.72 in)
#5 rectangle inlet length 26 mm (≃1.02 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 50 mm (≃1.97 in)
#8 total length 250 mm (≃9.84 in)
#9 thickness 2 mm (≃0.08 in)
#10 chamfer chamfer on the inside
of the rectangular tube
Metadata Value
Cylinder internal diameter 101.4 mm (≃4 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 ⌀109.4 mm to 240.4×120 mm, thickness 2 mm + offset (📦 #5990)

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Round-to-Rectangular Tube Adapter STL file ⌀109.4 mm to 240.4×120 mm, thickness 2 mm + offset
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Parameter Value Unit
cylinder outer diameter 109.4 mm
cylinder inlet length 100 mm
rectangle internal length 240.4 mm
rectangle internal height 120 mm
rectangle inlet length 26 mm
offset Z 0 mm
offset Y 62 mm
total length 250 mm
thickness 2 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 225×114 mm, thickness 2 mm + offset (📦 #3323)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 225×114 mm, thickness 2 mm + offset
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Parameter Value Unit
cylinder outer diameter 106 mm
cylinder inlet length 50 mm
rectangle internal length 225 mm
rectangle internal height 114 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 60 mm
total length 290 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 220×110 mm, thickness 2 mm + offset (📦 #3322)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 220×110 mm, thickness 2 mm + offset
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀106 mm and a rectangular section with internal dimensions 220×110 mm. The shell thickness is 2 mm and the total length is 290 mm. The adapter has an offset of 60 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 106 mm
cylinder inlet length 50 mm
rectangle internal length 220 mm
rectangle internal height 110 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 60 mm
total length 290 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 150×30 mm, thickness 3 mm + offset (📦 #7954)

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Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 150×30 mm, thickness 3 mm + offset
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Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 80 mm
rectangle internal length 150 mm
rectangle internal height 30 mm
rectangle inlet length 50 mm
offset Z 35 mm
offset Y 35 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

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
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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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thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀108 mm to 297×67 mm, thickness 3 mm + offset (📦 #1771)

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Round-to-Rectangular Tube Adapter STL file ⌀108 mm to 297×67 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀108 mm and a rectangular section with internal dimensions 297×67 mm. The wall thickness is 3 mm and the total length is 250 mm. The adapter has an offset of 25 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 108 mm
cylinder inlet length 100 mm
rectangle internal length 297 mm
rectangle internal height 67 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 25 mm
total length 250 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 80×120 mm, thickness 2 mm + offset (📦 #9189)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 80×120 mm, thickness 2 mm + offset
Download this 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 80×120 mm. The shell thickness is 2 mm and the overall length is 250 mm. The adapter has an offset of 75 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 80 mm
rectangle internal height 120 mm
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offset Y 75 mm
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thickness 2 mm
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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 50×200 mm, thickness 3 mm + offset (📦 #10064)

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Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 50 mm
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total length 200 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀148 mm to 228×80 mm, thickness 3 mm + offset (📦 #4275)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀148 mm to 228×80 mm, thickness 3 mm + offset
Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀148 mm and a rectangular section with internal dimensions 228×80 mm. The wall thickness is 3 mm and the overall length is 150 mm. The adapter has an offset of 24 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 148 mm
cylinder inlet length 50 mm
rectangle internal length 228 mm
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Parameter Value Unit
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cylinder inlet length 30 mm
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Parameter Value Unit
cylinder outer diameter 200 mm
cylinder inlet length 100 mm
rectangle internal length 100 mm
rectangle internal height 80 mm
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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
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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
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Round-to-Rectangular Tube Adapter STL file ⌀76.2 mm to 200×50.8 mm, thickness 4 mm + offset (📦 #2134)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀76.2 mm to 200×50.8 mm, thickness 4 mm + offset
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀76.2 mm and a rectangular section with internal dimensions 200×50.8 mm. The shell thickness is 4 mm and the overall length is 166 mm. The adapter has an offset of 20 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 76.2 mm
cylinder inlet length 76 mm
rectangle internal length 200 mm
rectangle internal height 50.8 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 20 mm
total length 166 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀130 mm to 120×60 mm, thickness 3 mm + offset (📦 #7217)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀130 mm to 120×60 mm, thickness 3 mm + offset
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀130 mm and a rectangular section with inner dimensions 120×60 mm. The shell thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 30 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 130 mm
cylinder inlet length 30 mm
rectangle internal length 120 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 30 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀148 mm to 200×80 mm, thickness 3 mm + offset (📦 #4271)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀148 mm to 200×80 mm, thickness 3 mm + offset
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀148 mm and a rectangular section with inner dimensions 200×80 mm. The shell thickness is 3 mm and the overall length is 150 mm. The adapter has an offset of 20 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 148 mm
cylinder inlet length 50 mm
rectangle internal length 200 mm
rectangle internal height 80 mm
rectangle inlet length 49 mm
offset Z 0 mm
offset Y 20 mm
total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 220×110 mm, thickness 2 mm + offset (📦 #3319)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 220×110 mm, thickness 2 mm + offset
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀106 mm and a rectangular section with internal dimensions 220×110 mm. The wall thickness is 2 mm and the total length is 280 mm. The adapter has an offset of 20 mm along the Y axis and 55 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 106 mm
cylinder inlet length 100 mm
rectangle internal length 220 mm
rectangle internal height 110 mm
rectangle inlet length 70 mm
offset Z 55 mm
offset Y 20 mm
total length 280 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀98 mm to 200×44 mm, thickness 3 mm + offset (📦 #9067)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀98 mm to 200×44 mm, thickness 3 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀98 mm and a rectangular section with inner dimensions 200×44 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 50 mm along the Y axis and 50 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 98 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 44 mm
rectangle inlet length 60 mm
offset Z 50 mm
offset Y 50 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 135×75 mm, thickness 2 mm + offset (📦 #1975)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 135×75 mm, thickness 2 mm + offset
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 135×75 mm. The shell thickness is 2 mm and the overall length is 160 mm. The adapter has an offset of 30 mm along the Y axis and 30 mm along the Z axis.
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
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀156 mm to 200×80 mm, thickness 3 mm + offset (📦 #9654)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀156 mm to 200×80 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀156 mm and a rectangular section with internal dimensions 200×80 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 30 mm along the Y axis and 20 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 156 mm
cylinder inlet length 40 mm
rectangle internal length 200 mm
rectangle internal height 80 mm
rectangle inlet length 100 mm
offset Z 20 mm
offset Y 30 mm
total length 200 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 94.6×73 mm, thickness 2 mm + offset (📦 #3310)

1 object(s) - format STL
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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 0 mm
offset Y 25 mm
total length 200 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀150 mm to 80×50 mm, thickness 3 mm + offset (📦 #1571)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀150 mm to 80×50 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀150 mm and a rectangular section with internal dimensions 80×50 mm. The wall thickness is 3 mm and the overall length is 150 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 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
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀156 mm to 200×80 mm, thickness 2 mm + offset (📦 #9689)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀156 mm to 200×80 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀156 mm and a rectangular section with internal dimensions 200×80 mm. The shell thickness is 2 mm and the overall length is 220 mm. The adapter has an offset of 30 mm along the Y axis and 50 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 156 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 50 mm
offset Y 30 mm
total length 220 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀140 mm to 190×25 mm, thickness 3 mm + offset (📦 #4344)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀140 mm to 190×25 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀140 mm and a rectangular section with internal dimensions 190×25 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 37 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 140 mm
cylinder inlet length 25 mm
rectangle internal length 190 mm
rectangle internal height 25 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 37 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀84 mm to 31×100 mm, thickness 2 mm + offset (📦 #6824)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀84 mm to 31×100 mm, thickness 2 mm + offset
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀84 mm and a rectangular section with inner dimensions 31×100 mm. The wall thickness is 2 mm and the total length is 140 mm. The adapter has an offset of 35 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 84 mm
cylinder inlet length 20 mm
rectangle internal length 31 mm
rectangle internal height 100 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 35 mm
total length 140 mm
thickness 2 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
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 31×100 mm, thickness 2 mm + offset (📦 #7250)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀78 mm to 31×100 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀78 mm and a rectangular section with internal dimensions 31×100 mm. The wall thickness is 2 mm and the total length is 140 mm. The adapter has an offset of 35 mm along the Y 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 78 mm
cylinder inlet length 20 mm
rectangle internal length 31 mm
rectangle internal height 100 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 35 mm
total length 140 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
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 120×40 mm, thickness 2 mm + offset (📦 #1938)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 120×40 mm, thickness 2 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 inner dimensions 120×40 mm. The shell thickness is 2 mm and the total length is 175 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 100 mm
cylinder inlet length 35 mm
rectangle internal length 120 mm
rectangle internal height 40 mm
rectangle inlet length 75 mm
offset Z 25 mm
offset Y 25 mm
total length 175 mm
thickness 2 mm
chamfer no chamfer