Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀300 mm to 154×240 mm, thickness 3 mm + offset 📦#4573

STL Download STL
Create a new model expert
from scratch search for a model
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀300 mm and a rectangular section with internal dimensions 154×240 mm. The wall thickness is 3 mm and the total length is 240 mm. The adapter has an offset of 70 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: 2025-12-11
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀300 mm to 154×240 mm, thickness 3 mm + offset

3D model download

Free
  • round-to-rectangular-adapter-d_model4573-nb0_dd{id}.stl : 1.9 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 300 mm (≃11 13/16 in)
#2 cylinder inlet length 20 mm (≃0.79 in)
#3 rectangle internal length 154 mm (≃6 1/16 in)
#4 rectangle internal height 240 mm (≃9 7/16 in)
#5 rectangle inlet length 50 mm (≃1.97 in)
#6 offset Z 70 mm (≃2 3/4 in)
#7 offset Y 0 mm (0 in)
#8 total length 240 mm (≃9 7/16 in)
#9 thickness 3 mm (≃1/8 in)
#10 chamfer chamfers on the outside
of the cylindrical tube
and on the inside of
the rectangular tube
Metadata Value
Cylinder internal diameter 294 mm (≃11 9/16 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 

File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀260 mm and a rectangular section with internal dimensions 100×50 mm. The shell thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 50 mm along the Z axis. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 260 mm
cylinder inlet length 25 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
offset Z 50 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfer on t...
Download this model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀108 mm and a rectangular section with inner dimensions 154×240 mm. The wall thickness is 3 mm and the total length is 240 mm. The adapter has an offset of 70 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 108 mm
cylinder inlet length 20 mm
rectangle internal length 154 mm
rectangle internal height 240 mm
rectangle inlet length 50 mm
offset Z 70 mm
offset Y 0 mm
total length 240 mm
thickness 3 mm
chamfer chamfers on ...
3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀300 mm and a rectangular section with internal dimensions 200×200 mm. The shell thickness is 3 mm and the overall length is 200 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 300 mm
cylinder inlet length 25 mm
rectangle internal length 200 mm
rectangle internal height 200 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀108 mm and a rectangular section with internal dimensions 154×240 mm. The shell thickness is 3 mm and the overall length is 240 mm. The adapter has an offset of 70 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 108 mm
cylinder inlet length 30 mm
rectangle internal length 154 mm
rectangle internal height 240 mm
rectangle inlet length 50 mm
offset Z 70 mm
offset Y 0 mm
total length 240 mm
thickness 3 mm
chamfer chamfers on ...
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀147 mm and a rectangular section with internal dimensions 250×250 mm. The shell thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 50 mm along the Z axis. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 147 mm
cylinder inlet length 40 mm
rectangle internal length 250 mm
rectangle internal height 250 mm
rectangle inlet length 50 mm
offset Z 50 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfer on t...
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀108 mm and a rectangular section with inner dimensions 154×240 mm. The shell thickness is 3 mm and the total length is 240 mm. The adapter has an offset of 70 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 108 mm
cylinder inlet length 20 mm
rectangle internal length 154 mm
rectangle internal height 240 mm
rectangle inlet length 30 mm
offset Z 70 mm
offset Y 0 mm
total length 240 mm
thickness 3 mm
chamfer chamfers on ...
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀249 mm and a rectangular section with inner dimensions 204×204 mm. The shell thickness is 3 mm and the total length is 249 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 249 mm
cylinder inlet length 20 mm
rectangle internal length 204 mm
rectangle internal height 204 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 249 mm
thickness 3 mm
chamfer chamfers on ...
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀250 mm and a rectangular section with internal dimensions 250×150 mm. The shell thickness is 3 mm and the total length is 165 mm. The adapter has an offset of 15 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 250 mm
cylinder inlet length 50 mm
rectangle internal length 250 mm
rectangle internal height 150 mm
rectangle inlet length 80 mm
offset Z 15 mm
offset Y 0 mm
total length 165 mm
thickness 3 mm
chamfer chamfers on ...
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
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 ...
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 internal dimensions 219×80 mm. The shell thickness is 2 mm and the total length is 200 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 to ease insertion.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 30 mm
rectangle internal length 219 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 ...
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 ...
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 ...
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀80 mm and a rectangular section with inner dimensions 154×220 mm. The wall thickness is 3 mm and the overall length is 240 mm. The adapter has an offset of 70 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 80 mm
cylinder inlet length 20 mm
rectangle internal length 154 mm
rectangle internal height 220 mm
rectangle inlet length 50 mm
offset Z 70 mm
offset Y 0 mm
total length 240 mm
thickness 3 mm
chamfer chamfers on ...
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀280 mm and a rectangular section with inner dimensions 100×100 mm. The shell thickness is 3 mm and the total 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 280 mm
cylinder inlet length 25 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...
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 ...
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀199 mm and a rectangular section with internal dimensions 204×204 mm. The wall thickness is 3 mm and the total length is 300 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 199 mm
cylinder inlet length 25 mm
rectangle internal length 204 mm
rectangle internal height 204 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 300 mm
thickness 3 mm
chamfer chamfers on ...
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀108 mm and a rectangular section with internal dimensions 154×240 mm. The wall thickness is 5 mm and the overall length is 240 mm. The adapter has an offset of 70 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 108 mm
cylinder inlet length 20 mm
rectangle internal length 154 mm
rectangle internal height 240 mm
rectangle inlet length 30 mm
offset Z 70 mm
offset Y 0 mm
total length 240 mm
thickness 5 mm
chamfer chamfers on ...
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀108 mm and a rectangular section with inner dimensions 154×240 mm. The shell thickness is 5 mm and the total length is 240 mm. The adapter has an offset of 70 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 108 mm
cylinder inlet length 30 mm
rectangle internal length 154 mm
rectangle internal height 240 mm
rectangle inlet length 30 mm
offset Z 70 mm
offset Y 0 mm
total length 240 mm
thickness 5 mm
chamfer chamfers on ...
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀200 mm and a rectangular section with inner dimensions 180×60 mm. The shell thickness is 3 mm and the total length is 150 mm. The adapter has an offset of 45 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 200 mm
cylinder inlet length 30 mm
rectangle internal length 180 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 45 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀200 mm and a rectangular section with inner dimensions 200×60 mm. The shell thickness is 2 mm and the overall length is 200 mm. The adapter has an offset of 45 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 60 mm
rectangle inlet length 30 mm
offset Z 45 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
chamfer no chamfer
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀195 mm and a rectangular section with internal dimensions 185×185 mm. The shell thickness is 3 mm and the total length is 160 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 195 mm
cylinder inlet length 40 mm
rectangle internal length 185 mm
rectangle internal height 185 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 160 mm
thickness 3 mm
chamfer chamfers on ...
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
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀108 mm and a rectangular section with internal dimensions 154×240 mm. The shell thickness is 5 mm and the overall length is 240 mm. The adapter has an offset of 70 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 108 mm
cylinder inlet length 50 mm
rectangle internal length 154 mm
rectangle internal height 240 mm
rectangle inlet length 50 mm
offset Z 70 mm
offset Y 0 mm
total length 240 mm
thickness 5 mm
chamfer chamfers on ...
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀150 mm and a rectangular section with inner dimensions 100×50 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 50 mm along the Z axis. A chamfer is present on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 25 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
offset Z 50 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfer on t...
Download this 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 200×60 mm. The wall thickness is 2 mm and the overall length is 150 mm. The adapter has an offset of 45 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 60 mm
rectangle inlet length 30 mm
offset Z 45 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀150 mm and a rectangular section with inner dimensions 240×80 mm. The shell 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 150 mm
cylinder inlet length 30 mm
rectangle internal length 240 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 60 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀152.4 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 152.4 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
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀150 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 50 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 mm
rectangle internal length 220 mm
rectangle internal height 90 mm
rectangle inlet length 50 mm
offset Z 50 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer