Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 240×120 mm, thickness 3 mm 📦#4036

STL Download STL 1
Create a new model:
from scratch search for a model
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 240×120 mm. The shell thickness is 3 mm and the total length is 80 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Generation date: 2025-11-29
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 240×120 mm, thickness 3 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model4036-nb0_dd{id}.stl : 3.5 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
Instant .zip download — no email, no account

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 100 mm (≃3 15/16 in)
#2 cylinder inlet length 20 mm (≃0.79 in)
#3 rectangle internal length 240 mm (≃9 7/16 in)
#4 rectangle internal height 120 mm (≃4.72 in)
#5 rectangle inlet length 20 mm (≃0.79 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 80 mm (≃3.15 in)
#9 thickness 3 mm (≃1/8 in)
#10 chamfer chamfer on the outside
of the cylindrical tube
Metadata Value
Cylinder internal diameter 94 mm (≃3 11/16 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

Related 3D models

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 ⌀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
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀126 mm to 145×69.5 mm, thickness 3 mm + offset (📦 #2102)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀126 mm to 145×69.5 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀126 mm and a rectangular section with inner dimensions 145×69.5 mm. The wall thickness is 3 mm and the total length is 64.5 mm. The adapter has an offset of 8.0 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 126 mm
cylinder inlet length 20 mm
rectangle internal length 145 mm
rectangle internal height 69.5 mm
rectangle inlet length 11 mm
offset Z 8.0 mm
offset Y 0 mm
total length 64.5 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 135×100 mm, thickness 2 mm (📦 #3917)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 135×100 mm, thickness 2 mm
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with internal dimensions 135×100 mm. The shell thickness is 2 mm and the overall length is 60 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 135 mm
rectangle internal height 100 mm
rectangle inlet length 20 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 3D file ⌀110 mm to 150×80 mm, thickness 3 mm + offset (📦 #1645)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀110 mm to 150×80 mm, thickness 3 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀110 mm and a rectangular section with internal dimensions 150×80 mm. The shell thickness is 3 mm and the overall length is 100 mm. The adapter has an offset of 20 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 110 mm
cylinder inlet length 30 mm
rectangle internal length 150 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 20 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀126.0 mm to 145.0×69.5 mm, thickness 3 mm + offset (📦 #2103)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀126.0 mm to 145.0×69.5 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀126.0 mm and a rectangular section with internal dimensions 145.0×69.5 mm. The shell thickness is 3 mm and the overall length is 64.5 mm. The adapter has an offset of 16.7 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 126.0 mm
cylinder inlet length 20 mm
rectangle internal length 145.0 mm
rectangle internal height 69.5 mm
rectangle inlet length 11 mm
offset Z 16.7 mm
offset Y 0 mm
total length 64.5 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀124 mm to 250×80 mm, thickness 3 mm (📦 #2146)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀124 mm to 250×80 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀124 mm and a rectangular section with internal dimensions 250×80 mm. The wall thickness is 3 mm and the total length is 186 mm.
Parameter Value Unit
cylinder outer diameter 124 mm
cylinder inlet length 30 mm
rectangle internal length 250 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 186 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 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 3D file ⌀126.0 mm to 120×70 mm, thickness 3 mm (📦 #2232)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀126.0 mm to 120×70 mm, thickness 3 mm
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀126.0 mm and a rectangular section with inner dimensions 120×70 mm. The wall thickness is 3 mm and the overall length is 50 mm.
Parameter Value Unit
cylinder outer diameter 126.0 mm
cylinder inlet length 15 mm
rectangle internal length 120 mm
rectangle internal height 70 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 50 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 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
offset Z 0 mm
offset Y 0 mm
total length 110.3 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL 3D file ⌀125 mm to 220×90 mm, thickness 3 mm (📦 #2671)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀125 mm to 220×90 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀125 mm and a rectangular section with inner dimensions 220×90 mm. The shell thickness is 3 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 30 mm
rectangle internal length 220 mm
rectangle internal height 90 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀112 mm to 294×67 mm, thickness 3 mm (📦 #1628)

1 object(s) - format STL (5.0/5) 3 vote(s)
Round-to-Rectangular Tube Adapter STL file ⌀112 mm to 294×67 mm, thickness 3 mm
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀112 mm and a rectangular section with inner dimensions 294×67 mm. The wall thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 112 mm
cylinder inlet length 30 mm
rectangle internal length 294 mm
rectangle internal height 67 mm
rectangle inlet length 50 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 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 ⌀119 mm to 114×79 mm, thickness 3 mm + offset (📦 #2247)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀119 mm to 114×79 mm, thickness 3 mm + offset
Download this model in STL format of a round-to-rectangular 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 overall length is 100 mm. The adapter has an offset of 2 mm along the Y axis and 17.5 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 17.5 mm
offset Y 2 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 80×80 mm, thickness 3 mm (📦 #1528)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 80×80 mm, thickness 3 mm
File 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 wall thickness is 3 mm and the total length is 50 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
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 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL 3D file ⌀104 mm to 104×104 mm, thickness 2 mm (📦 #4157)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀104 mm to 104×104 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀104 mm and a rectangular section with inner dimensions 104×104 mm. The shell thickness is 2 mm and the total length is 80 mm.
Parameter Value Unit
cylinder outer diameter 104 mm
cylinder inlet length 20 mm
rectangle internal length 104 mm
rectangle internal height 104 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 119×72 mm, thickness 2 mm (📦 #2600)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 119×72 mm, thickness 2 mm
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 119×72 mm. The wall thickness is 2 mm and the overall length is 76 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 119 mm
rectangle internal height 72 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 76 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀110 mm to 150×80 mm, thickness 3 mm + offset (📦 #1646)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀110 mm to 150×80 mm, thickness 3 mm + offset
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀110 mm and a rectangular section with internal dimensions 150×80 mm. The wall thickness is 3 mm and the overall length is 120 mm. The adapter has an offset of 30 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 110 mm
cylinder inlet length 30 mm
rectangle internal length 150 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 30 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀99.5 mm to 170×100 mm, thickness 2 mm (📦 #1696)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀99.5 mm to 170×100 mm, thickness 2 mm
Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀99.5 mm and a rectangular section with inner dimensions 170×100 mm. The wall thickness is 2 mm and the overall length is 120 mm. 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 99.5 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 120 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀105 mm to 150×50 mm, thickness 3 mm + offset (📦 #1872)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀105 mm to 150×50 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀105 mm and a rectangular section with inner dimensions 150×50 mm. The shell thickness is 3 mm and the overall length is 100 mm. The adapter has an offset of 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 105 mm
cylinder inlet length 30 mm
rectangle internal length 150 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
offset Z 10 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀124 mm to 145×69.5 mm, thickness 2 mm + offset (📦 #1967)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀124 mm to 145×69.5 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀124 mm and a rectangular section with internal dimensions 145×69.5 mm. The shell thickness is 2 mm and the total length is 50 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 124 mm
cylinder inlet length 10 mm
rectangle internal length 145 mm
rectangle internal height 69.5 mm
rectangle inlet length 8 mm
offset Z 2 mm
offset Y 2 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 119×68 mm, thickness 2 mm (📦 #2603)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 119×68 mm, thickness 2 mm
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 119×68 mm. The shell thickness is 2 mm and the overall length is 76 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 119 mm
rectangle internal height 68 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 76 mm
thickness 2 mm
chamfer no chamfer