Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀36 mm to 75×31 mm, thickness 2 mm 📦#7742

STL Download STL 1
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 outer diameter of ⌀36 mm and a rectangular section with internal dimensions 75×31 mm. The wall thickness is 2 mm and the total length is 80 mm.
Generation date: 2026-03-11
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀36 mm to 75×31 mm, thickness 2 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model7742-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)
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 36 mm (≃1.42 in)
#2 cylinder inlet length 35 mm (≃1 3/8 in)
#3 rectangle internal length 75 mm (≃2 15/16 in)
#4 rectangle internal height 31 mm (≃1.22 in)
#5 rectangle inlet length 15 mm (≃0.59 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 2 mm (≃0.08 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 32 mm (≃1 1/4 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

Related 3D models

To search for a model based on your own parameters, go to the template page Round to rectangular adapter 

3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀33 mm and a rectangular section with internal dimensions 75×12 mm. The wall thickness is 2 mm and the overall length is 85 mm.
Parameter Value Unit
cylinder outer diameter 33 mm
cylinder inlet length 31 mm
rectangle internal length 75 mm
rectangle internal height 12 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 85 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 ⌀33 mm and a rectangular section with inner dimensions 100×13 mm. The wall thickness is 2 mm and the overall length is 90 mm.
Parameter Value Unit
cylinder outer diameter 33 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 13 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 90 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 ⌀50 mm and a rectangular section with internal dimensions 50×50 mm. The shell thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 25 mm
rectangle internal length 50 mm
rectangle internal height 50 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀55 mm and a rectangular section with inner dimensions 29×19 mm. The shell thickness is 2 mm and the total length is 80 mm.
Parameter Value Unit
cylinder outer diameter 55 mm
cylinder inlet length 29 mm
rectangle internal length 29 mm
rectangle internal height 19 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀32 mm and a rectangular section with inner dimensions 80×5 mm. The wall thickness is 2 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 30 mm
rectangle internal length 80 mm
rectangle internal height 5 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer no chamfer
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀50 mm and a rectangular section with inner dimensions 32×32 mm. The wall thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 25 mm
rectangle internal length 32 mm
rectangle internal height 32 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀32 mm and a rectangular section with inner dimensions 90×5 mm. The wall thickness is 2 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 30 mm
rectangle internal length 90 mm
rectangle internal height 5 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀32 mm and a rectangular section with internal dimensions 60×5 mm. The shell thickness is 2 mm and the total length is 120 mm.
Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 30 mm
rectangle internal length 60 mm
rectangle internal height 5 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer no chamfer
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀25 mm and a rectangular section with inner dimensions 57×33 mm. The wall thickness is 2 mm and the overall length is 75 mm. A chamfer is present on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 25 mm
cylinder inlet length 30 mm
rectangle internal length 57 mm
rectangle internal height 33 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 75 mm
thickness 2 mm
chamfer chamfer on t...
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀44 mm and a rectangular section with inner dimensions 50×25 mm. The wall thickness is 2 mm and the overall length is 60 mm.
Parameter Value Unit
cylinder outer diameter 44 mm
cylinder inlet length 20 mm
rectangle internal length 50 mm
rectangle internal height 25 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 2 mm
chamfer no chamfer
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀50 mm and a rectangular section with inner dimensions 90×45 mm. The wall thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 20 mm
rectangle internal length 90 mm
rectangle internal height 45 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
Download this 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 55×30 mm. The shell thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 40 mm
rectangle internal length 55 mm
rectangle internal height 30 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀44 mm and a rectangular section with internal dimensions 50×25 mm. The shell thickness is 2 mm and the total length is 60 mm. The adapter has an offset of 7 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 44 mm
cylinder inlet length 20 mm
rectangle internal length 50 mm
rectangle internal height 25 mm
rectangle inlet length 20 mm
offset Z 7 mm
offset Y 0 mm
total length 60 mm
thickness 2 mm
chamfer no chamfer
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀32 mm and a rectangular section with inner dimensions 35×5 mm. The shell thickness is 2 mm and the total length is 120 mm.
Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 30 mm
rectangle internal length 35 mm
rectangle internal height 5 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀43 mm and a rectangular section with internal dimensions 25×6 mm. The wall thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 43 mm
cylinder inlet length 25 mm
rectangle internal length 25 mm
rectangle internal height 6 mm
rectangle inlet length 19 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀25 mm and a rectangular section with inner dimensions 29×19 mm. The wall thickness is 2 mm and the overall length is 80 mm.
Parameter Value Unit
cylinder outer diameter 25 mm
cylinder inlet length 50 mm
rectangle internal length 29 mm
rectangle internal height 19 mm
rectangle inlet length 10 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer no chamfer
Download this 3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀50 mm and a rectangular section with inner dimensions 80×45 mm. The shell thickness is 2 mm and the total length is 70 mm. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 25 mm
rectangle internal length 80 mm
rectangle internal height 45 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 70 mm
thickness 2 mm
chamfer chamfer on t...
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀22 mm and a rectangular section with inner dimensions 5×12 mm. The wall thickness is 2 mm and the total length is 70 mm.
Parameter Value Unit
cylinder outer diameter 22 mm
cylinder inlet length 30 mm
rectangle internal length 5 mm
rectangle internal height 12 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 70 mm
thickness 2 mm
chamfer no chamfer
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀65 mm and a rectangular section with inner dimensions 47×23 mm. The wall thickness is 2 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 65 mm
cylinder inlet length 24 mm
rectangle internal length 47 mm
rectangle internal height 23 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀22 mm and a rectangular section with inner dimensions 40×10 mm. The wall thickness is 2 mm and the overall length is 50 mm.
Parameter Value Unit
cylinder outer diameter 22 mm
cylinder inlet length 20 mm
rectangle internal length 40 mm
rectangle internal height 10 mm
rectangle inlet length 10 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀39 mm and a rectangular section with internal dimensions 49×13 mm. The wall thickness is 2 mm and the overall length is 57 mm. The adapter has an offset of 5 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 39 mm
cylinder inlet length 17 mm
rectangle internal length 49 mm
rectangle internal height 13 mm
rectangle inlet length 20 mm
offset Z 5 mm
offset Y 0 mm
total length 57 mm
thickness 2 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀30 mm and a rectangular section with inner dimensions 29×19 mm. The shell thickness is 2 mm and the overall length is 50 mm.
Parameter Value Unit
cylinder outer diameter 30 mm
cylinder inlet length 20 mm
rectangle internal length 29 mm
rectangle internal height 19 mm
rectangle inlet length 8 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀36 mm and a rectangular section with internal dimensions 50×5 mm. The wall thickness is 2 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 36 mm
cylinder inlet length 20 mm
rectangle internal length 50 mm
rectangle internal height 5 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 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 ⌀32 mm and a rectangular section with inner dimensions 50×5 mm. The shell thickness is 2 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 20 mm
rectangle internal length 50 mm
rectangle internal height 5 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer no chamfer
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀30 mm and a rectangular section with internal dimensions 100×15 mm. The shell thickness is 2 mm and the total length is 50 mm. The adapter has an offset of 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 30 mm
cylinder inlet length 20 mm
rectangle internal length 100 mm
rectangle internal height 15 mm
rectangle inlet length 10 mm
offset Z 10 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀30.5 mm and a rectangular section with internal dimensions 27×15 mm. The shell thickness is 2 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 30.5 mm
cylinder inlet length 20 mm
rectangle internal length 27 mm
rectangle internal height 15 mm
rectangle inlet length 8 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀50 mm and a rectangular section with inner dimensions 90×50 mm. The shell thickness is 2 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 15 mm
rectangle internal length 90 mm
rectangle internal height 50 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀50 mm and a rectangular section with internal dimensions 100×45 mm. The shell thickness is 2 mm and the total length is 80 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 20 mm
rectangle internal length 100 mm
rectangle internal height 45 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer chamfer on t...
Download this model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀64 mm and a rectangular section with inner dimensions 48.6×49 mm. The wall thickness is 2 mm and the overall length is 65 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 64 mm
cylinder inlet length 40 mm
rectangle internal length 48.6 mm
rectangle internal height 49 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 65 mm
thickness 2 mm
chamfer chamfer on t...
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀25 mm and a rectangular section with internal dimensions 20×5 mm. The wall thickness is 2 mm and the total length is 60 mm.
Parameter Value Unit
cylinder outer diameter 25 mm
cylinder inlet length 20 mm
rectangle internal length 20 mm
rectangle internal height 5 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 2 mm
chamfer no chamfer