Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀32 mm to 25.4×25.4 mm, thickness 4 mm 📦#7502

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 adapter with an external diameter of ⌀32 mm and a rectangular section with inner dimensions 25.4×25.4 mm. The wall thickness is 4 mm and the total length is 130 mm.
Generation date: 2026-02-28
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀32 mm to 25.4×25.4 mm, thickness 4 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model7502-nb0_dd{id}.stl : 594.4 Ko
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 32 mm (≃1 1/4 in)
#2 cylinder inlet length 75 mm (≃2 15/16 in)
#3 rectangle internal length 25.4 mm (1 in)
#4 rectangle internal height 25.4 mm (1 in)
#5 rectangle inlet length 32 mm (≃1 1/4 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 130 mm (≃5 1/8 in)
#9 thickness 4 mm (≃0.16 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 24 mm (≃15/16 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 file ⌀76 mm to 53×27 mm, thickness 4 mm (📦 #6224)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 53×27 mm, thickness 4 mm
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀76 mm and a rectangular section with internal dimensions 53×27 mm. The shell thickness is 4 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 76 mm
rectangle internal length 53 mm
rectangle internal height 27 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 4 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 84×34 mm, thickness 4 mm (📦 #6225)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 84×34 mm, thickness 4 mm
Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀76 mm and a rectangular section with inner dimensions 84×34 mm. The shell thickness is 4 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 76 mm
rectangle internal length 84 mm
rectangle internal height 34 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 4 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 43×43 mm, thickness 4 mm (📦 #8538)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 43×43 mm, thickness 4 mm
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀40 mm and a rectangular section with internal dimensions 43×43 mm. The shell thickness is 4 mm and the total length is 100 mm.
Parameter Value Unit
cylinder outer diameter 40 mm
cylinder inlet length 40 mm
rectangle internal length 43 mm
rectangle internal height 43 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 4 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 60×5 mm, thickness 3 mm (📦 #9030)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 60×5 mm, thickness 3 mm
3D 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 60×5 mm. The wall thickness is 3 mm and the total length is 130 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 60 mm
rectangle internal length 60 mm
rectangle internal height 5 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 130 mm
thickness 3 mm
chamfer chamfer on t...

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 ⌀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 3D file ⌀64.4 mm to 76.2×50 mm, thickness 3 mm (📦 #3492)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀64.4 mm to 76.2×50 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀64.4 mm and a rectangular section with inner dimensions 76.2×50 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 64.4 mm
cylinder inlet length 50 mm
rectangle internal length 76.2 mm
rectangle internal height 50 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 ⌀25 mm to 40×40 mm, thickness 3 mm (📦 #3952)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀25 mm to 40×40 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀25 mm and a rectangular section with internal dimensions 40×40 mm. The wall thickness is 3 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 25 mm
cylinder inlet length 100 mm
rectangle internal length 40 mm
rectangle internal height 40 mm
rectangle inlet length 50 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 ⌀90 mm to 80×55 mm, thickness 3 mm + offset (📦 #8052)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 80×55 mm, thickness 3 mm + offset
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀90 mm and a rectangular section with inner dimensions 80×55 mm. The shell thickness is 3 mm and the total length is 130 mm. The adapter has an offset of 3 mm along the Y axis and 3 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 60 mm
rectangle internal length 80 mm
rectangle internal height 55 mm
rectangle inlet length 50 mm
offset Z 3 mm
offset Y 3 mm
total length 130 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀52 mm to 100×60 mm, thickness 3 mm + offset (📦 #1873)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀52 mm to 100×60 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀52 mm and a rectangular section with internal dimensions 100×60 mm. The shell thickness is 3 mm and the total length is 120 mm. The adapter has an offset of 3 mm along the Y axis and 3 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 52 mm
cylinder inlet length 50 mm
rectangle internal length 100 mm
rectangle internal height 60 mm
rectangle inlet length 50 mm
offset Z 3 mm
offset Y 3 mm
total length 120 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀35 mm to 115.5×90.5 mm, thickness 3 mm (📦 #9451)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀35 mm to 115.5×90.5 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀35 mm and a rectangular section with internal dimensions 115.5×90.5 mm. The shell thickness is 3 mm and the total length is 150 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 35 mm
cylinder inlet length 59 mm
rectangle internal length 115.5 mm
rectangle internal height 90.5 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL 3D file ⌀95 mm to 110×32 mm, thickness 3 mm (📦 #10137)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀95 mm to 110×32 mm, thickness 3 mm
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀95 mm and a rectangular section with internal dimensions 110×32 mm. The wall thickness is 3 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 95 mm
cylinder inlet length 50 mm
rectangle internal length 110 mm
rectangle internal height 32 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀90 mm to 76×76 mm, thickness 3 mm (📦 #2367)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀90 mm to 76×76 mm, thickness 3 mm
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀90 mm and a rectangular section with internal dimensions 76×76 mm. The wall thickness is 3 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 50 mm
rectangle internal length 76 mm
rectangle internal height 76 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀32 mm to 46×71 mm, thickness 4 mm (📦 #8706)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀32 mm to 46×71 mm, thickness 4 mm
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀32 mm and a rectangular section with internal dimensions 46×71 mm. The shell thickness is 4 mm and the total length is 90 mm.
Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 30 mm
rectangle internal length 46 mm
rectangle internal height 71 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 90 mm
thickness 4 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 114×52 mm, thickness 3 mm (📦 #5188)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 114×52 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀81 mm and a rectangular section with inner dimensions 114×52 mm. The shell thickness is 3 mm and the total length is 170 mm.
Parameter Value Unit
cylinder outer diameter 81 mm
cylinder inlet length 100 mm
rectangle internal length 114 mm
rectangle internal height 52 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 170 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 152×45 mm, thickness 3 mm (📦 #3347)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 152×45 mm, thickness 3 mm
Download this model 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 shell 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 50 mm
rectangle internal length 152 mm
rectangle internal height 45 mm
rectangle inlet length 40 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 file ⌀115 mm to 120×45 mm, thickness 3 mm (📦 #4446)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀115 mm to 120×45 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀115 mm and a rectangular section with internal dimensions 120×45 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 115 mm
cylinder inlet length 60 mm
rectangle internal length 120 mm
rectangle internal height 45 mm
rectangle inlet length 40 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 file ⌀20 mm to 50×30 mm, thickness 3 mm (📦 #1717)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀20 mm to 50×30 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀20 mm and a rectangular section with inner dimensions 50×30 mm. The shell thickness is 3 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 30 mm
rectangle internal length 50 mm
rectangle internal height 30 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀79 mm to 121×56 mm, thickness 4 mm (📦 #7533)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀79 mm to 121×56 mm, thickness 4 mm
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀79 mm and a rectangular section with internal dimensions 121×56 mm. The shell thickness is 4 mm and the total length is 90 mm.
Parameter Value Unit
cylinder outer diameter 79 mm
cylinder inlet length 35 mm
rectangle internal length 121 mm
rectangle internal height 56 mm
rectangle inlet length 35 mm
offset Z 0 mm
offset Y 0 mm
total length 90 mm
thickness 4 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀95 mm to 110×32 mm, thickness 3 mm + offset (📦 #10141)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀95 mm to 110×32 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀95 mm and a rectangular section with internal dimensions 110×32 mm. The wall thickness is 3 mm and the total length is 120 mm. The adapter has an offset of 20 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 95 mm
cylinder inlet length 50 mm
rectangle internal length 110 mm
rectangle internal height 32 mm
rectangle inlet length 30 mm
offset Z 20 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀79 mm to 121×56 mm, thickness 4 mm + offset (📦 #7534)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀79 mm to 121×56 mm, thickness 4 mm + offset
Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀79 mm and a rectangular section with internal dimensions 121×56 mm. The shell thickness is 4 mm and the total length is 90 mm. The adapter has an offset of 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 79 mm
cylinder inlet length 35 mm
rectangle internal length 121 mm
rectangle internal height 56 mm
rectangle inlet length 35 mm
offset Z 10 mm
offset Y 0 mm
total length 90 mm
thickness 4 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀109 mm to 55×12 mm, thickness 3 mm (📦 #8797)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀109 mm to 55×12 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀109 mm and a rectangular section with internal dimensions 55×12 mm. The shell thickness is 3 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 109 mm
cylinder inlet length 40 mm
rectangle internal length 55 mm
rectangle internal height 12 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 35×25 mm, thickness 3 mm (📦 #2245)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 35×25 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀50 mm and a rectangular section with inner dimensions 35×25 mm. The wall thickness is 3 mm and the total length is 100 mm.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 25 mm
rectangle internal length 35 mm
rectangle internal height 25 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 100×30 mm, thickness 3 mm + offset (📦 #5664)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 100×30 mm, thickness 3 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 inner dimensions 100×30 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 100 mm
cylinder inlet length 40 mm
rectangle internal length 100 mm
rectangle internal height 30 mm
rectangle inlet length 40 mm
offset Z 10 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer