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

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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.
Generation date: 2025-09-13
3D Model Round-to-Rectangular Tube Adapter STL file ⌀108 mm to 297×67 mm, thickness 3 mm + offset

3D model download

Free
  • round-to-rectangular-adapter-d_model1771-nb0_dd{id}.stl : 3.3 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 108 mm (≃4 1/4 in)
#2 cylinder inlet length 100 mm (≃3 15/16 in)
#3 rectangle internal length 297 mm (≃11 11/16 in)
#4 rectangle internal height 67 mm (≃2 5/8 in)
#5 rectangle inlet length 100 mm (≃3 15/16 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 25 mm (≃0.98 in)
#8 total length 250 mm (≃9.84 in)
#9 thickness 3 mm (≃1/8 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 102 mm (≃4.02 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 ⌀105 mm to 297×67 mm, thickness 3 mm (📦 #1613)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀105 mm to 297×67 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀105 mm and a rectangular section with internal dimensions 297×67 mm. The wall thickness is 3 mm and the overall length is 250 mm.
Parameter Value Unit
cylinder outer diameter 105 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 0 mm
total length 250 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀76.2 mm to 200×50.8 mm, thickness 4 mm + offset (📦 #2134)

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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
thickness 4 mm
chamfer no chamfer

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

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Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×25 mm, thickness 3 mm + offset
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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 ⌀106 mm to 220×110 mm, thickness 2 mm + offset (📦 #3318)

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Round-to-Rectangular Tube Adapter STL file ⌀106 mm to 220×110 mm, thickness 2 mm + offset
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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 100 mm
offset Z 10 mm
offset Y 0 mm
total length 230 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×78 mm, thickness 3 mm (📦 #2582)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×78 mm, thickness 3 mm
Download this 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 160×78 mm. The wall thickness is 3 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 76 mm
rectangle internal length 160 mm
rectangle internal height 78 mm
rectangle inlet length 100 mm
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offset Y 0 mm
total length 200 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)

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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 3D file ⌀50 mm to 200×40 mm, thickness 3 mm (📦 #1682)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 200×40 mm, thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 100 mm
rectangle internal length 200 mm
rectangle internal height 40 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀112 mm to 290×80 mm, thickness 3 mm (📦 #2034)

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Parameter Value Unit
cylinder outer diameter 112 mm
cylinder inlet length 70 mm
rectangle internal length 290 mm
rectangle internal height 80 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)

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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
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 220×60 mm, thickness 3 mm (📦 #1923)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 220×60 mm, thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 220 mm
rectangle internal height 60 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
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Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 180×30 mm, thickness 3 mm + offset (📦 #2002)

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Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 80 mm
rectangle internal length 180 mm
rectangle internal height 30 mm
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thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀180 mm to 180×50 mm, thickness 3 mm (📦 #1915)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀180 mm to 180×50 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀180 mm and a rectangular section with inner dimensions 180×50 mm. The wall thickness is 3 mm and the overall length is 250 mm.
Parameter Value Unit
cylinder outer diameter 180 mm
cylinder inlet length 80 mm
rectangle internal length 180 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 250 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀76.2 mm to 300×50.8 mm, thickness 4 mm (📦 #2133)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76.2 mm to 300×50.8 mm, thickness 4 mm
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀76.2 mm and a rectangular section with internal dimensions 300×50.8 mm. The wall thickness is 4 mm and the overall length is 166 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 76.2 mm
cylinder inlet length 76 mm
rectangle internal length 300 mm
rectangle internal height 50.8 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 166 mm
thickness 4 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 160×25 mm, thickness 3 mm + offset (📦 #2256)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 160×25 mm, thickness 3 mm + offset
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀76 mm and a rectangular section with internal dimensions 160×25 mm. The shell thickness is 3 mm and the total length is 221.4 mm. The adapter has an offset of 10.7 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 10.7 mm
offset Y 0 mm
total length 221.4 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 120×120 mm, thickness 3 mm + offset (📦 #1799)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 120×120 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀120 mm and a rectangular section with internal dimensions 120×120 mm. The shell thickness is 3 mm and the total length is 200 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 120 mm
cylinder inlet length 50 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 100 mm
offset Z 2 mm
offset Y 2 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀102 mm to 290×80 mm, thickness 3 mm (📦 #2036)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀102 mm to 290×80 mm, thickness 3 mm
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀102 mm and a rectangular section with inner dimensions 290×80 mm. The wall thickness is 3 mm and the overall length is 160 mm. A chamfer is present on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 102 mm
cylinder inlet length 70 mm
rectangle internal length 290 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 160 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀76.2 mm to 200×50.8 mm, thickness 4 mm + offset (📦 #2135)

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 total length is 166 mm. The adapter has an offset of 20 mm along the Z 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 20 mm
offset Y 0 mm
total length 166 mm
thickness 4 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×60 mm, thickness 3 mm + offset (📦 #2257)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×60 mm, thickness 3 mm + offset
3D 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 160×60 mm. The shell thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 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 60 mm
rectangle inlet length 100 mm
offset Z 25 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 160×25 mm, thickness 3 mm + offset (📦 #2259)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 160×25 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀76 mm and a rectangular section with internal 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 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 0 mm
total length 250 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀67 mm to 113×72 mm, thickness 3 mm + offset (📦 #3138)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀67 mm to 113×72 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀67 mm and a rectangular section with inner dimensions 113×72 mm. The shell thickness is 3 mm and the total length is 147.2 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 67 mm
cylinder inlet length 76 mm
rectangle internal length 113 mm
rectangle internal height 72 mm
rectangle inlet length 51 mm
offset Z 2 mm
offset Y 2 mm
total length 147.2 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 30×30 mm, thickness 4 mm + offset (📦 #1848)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 30×30 mm, thickness 4 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀80 mm and a rectangular section with inner dimensions 30×30 mm. The shell thickness is 4 mm and the overall length is 240 mm. The adapter has an offset of 20 mm along the Y axis and 20 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 80 mm
cylinder inlet length 100 mm
rectangle internal length 30 mm
rectangle internal height 30 mm
rectangle inlet length 100 mm
offset Z 20 mm
offset Y 20 mm
total length 240 mm
thickness 4 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 3D file ⌀101.6 mm to 300×28 mm, thickness 3 mm (📦 #3400)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀101.6 mm to 300×28 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀101.6 mm and a rectangular section with inner dimensions 300×28 mm. The wall thickness is 3 mm and the total length is 148 mm.
Parameter Value Unit
cylinder outer diameter 101.6 mm
cylinder inlet length 50 mm
rectangle internal length 300 mm
rectangle internal height 28 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 148 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀101 mm to 300×28 mm, thickness 3 mm (📦 #3401)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀101 mm to 300×28 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀101 mm and a rectangular section with internal dimensions 300×28 mm. The wall thickness is 3 mm and the overall length is 148 mm.
Parameter Value Unit
cylinder outer diameter 101 mm
cylinder inlet length 50 mm
rectangle internal length 300 mm
rectangle internal height 28 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 148 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀101 mm to 250×38 mm, thickness 3 mm (📦 #3403)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀101 mm to 250×38 mm, thickness 3 mm
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀101 mm and a rectangular section with internal dimensions 250×38 mm. The wall thickness is 3 mm and the total length is 135 mm.
Parameter Value Unit
cylinder outer diameter 101 mm
cylinder inlet length 50 mm
rectangle internal length 250 mm
rectangle internal height 38 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 135 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀72 mm to 118×77 mm, thickness 4 mm + offset (📦 #3135)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀72 mm to 118×77 mm, thickness 4 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀72 mm and a rectangular section with internal dimensions 118×77 mm. The shell thickness is 4 mm and the overall length is 147.2 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 72 mm
cylinder inlet length 76 mm
rectangle internal length 118 mm
rectangle internal height 77 mm
rectangle inlet length 51 mm
offset Z 2 mm
offset Y 2 mm
total length 147.2 mm
thickness 4 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