Custom Tube adapter STL file ⌀ 39–30 mm (Length: 65 mm) 📦#12663

STL Download STL 1
Create a new model expert
from scratch search for a model
Tube connector ⌀39 mm to ⌀30 mm in STL format. Length of this coupler is 65 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 25 mm, the smaller one of 25 mm as well. The ends have a fillet.
Generation date: 2026-10-17
3D Model Tube adapter STL file ⌀ 39–30 mm (Length: 65 mm)

3D model download

Free
  • inline-tube-adapter-lenA25mm-d_model12663-nb0_dd{id}.stl : 7.3 Mo
STL Mesh quality : Linear deflection 0.05 Angular deflection 0.05
No compliance warranty No compliance warranty
(attribution - commercial use allowed)
Safe download
Instant .zip download — no email, no account

Values for this model

This model was generated by the Inline tube adapter template, with the following values:
Parameter Value
#1 side A length 25 mm (≃0.98 in)
#2 side A outer diameter 39 mm (≃1.54 in)
#3 side A thickness 2 mm (≃0.08 in)
#4 side B length 25 mm (≃0.98 in)
#5 side B outer diameter 30 mm (≃1 3/16 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 15 mm (≃0.59 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet fillet on both inside
and outside
Metadata Value
inner diameter (side A) 35 mm (≃1 3/8 in)
inner diameter (side B) 26 mm (≃1.02 in)
total length 65 mm (≃2 9/16 in)
illustration of the parameters
Parameter overview

Labels are used in the naming of the downloaded 3D files.

Parameter Label
#1 side A length lenA
#2 side A outer diameter diA
#3 side A thickness thA
#4 side B length lenB
#5 side B outer diameter diB
#6 side B thickness thB
#7 transition length tra
#8 axis offset ofs
#9 ends fillet fil

Related 3D models

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

Tubing adapter STL file ⌀ 37–30 mm (Length: 65 mm) (📦 #12538)

1 object(s) - format STL
Tubing adapter STL file ⌀ 37–30 mm (Length: 65 mm)
Inline tubing adapter ⌀37 mm to ⌀30 mm in STL format. Total length of this reducer is 65 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends feature a fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 37 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 30 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL 3D file ⌀ 46–39 mm (Length: 80 mm) (📦 #4835)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 46–39 mm (Length: 80 mm)
Inline tube coupler ⌀46 mm to ⌀39 mm in STL 3D format. Total length of this fitting is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 30 mm
side A outer diameter 46 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 39 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 36–32 mm (Length: 51 mm) (📦 #10948)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 36–32 mm (Length: 51 mm)
Straight tubing adapter ⌀36 mm to ⌀32 mm in STL 3D format. Length of this connector is 51 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 26 mm. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 15 mm
side A outer diameter 36 mm
side A thickness 2 mm
side B length 26 mm
side B outer diameter 32 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 44–42 mm (Length: 70 mm) (📦 #7604)

1 object(s) - format STL
Tube adapter STL file ⌀ 44–42 mm (Length: 70 mm)
Straight tube reducer ⌀44 mm to ⌀42 mm in STL format. Total length of this reducer is 70 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends are rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 44 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 42 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 50–40 mm (Length: 50 mm) (📦 #1124)

1 object(s) - format STL
Tube adapter STL file ⌀ 50–40 mm (Length: 50 mm)
Tube junction ⌀50 mm to ⌀40 mm in STL 3D format. Length of this coupler is 50 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends have a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 20 mm
side A outer diameter 50 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 40 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 46–43 mm (Length: 70 mm) (📦 #4857)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 46–43 mm (Length: 70 mm)
Diameter adapter ⌀46 mm to ⌀43 mm in STL 3D format. Length of this adapter is 70 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends feature a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 30 mm
side A outer diameter 46 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 43 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 60–20 mm (Length: 75 mm) (📦 #2411)

1 object(s) - format STL
Tube adapter STL file ⌀ 60–20 mm (Length: 75 mm)
Inline tube junction ⌀60 mm to ⌀20 mm in STL format. Total length of this connector is 75 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 25 mm. The ends feature a fillet to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 60 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 54–44 mm (Length: 80 mm) (📦 #4484)

1 object(s) - format STL
Tube adapter STL file ⌀ 54–44 mm (Length: 80 mm)
Inline sleeve ⌀54 mm to ⌀44 mm in STL format. Length of this sleeve is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The ends have a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 30 mm
side A outer diameter 54 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 44 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 47–42 mm (Length: 48 mm) (📦 #6947)

1 object(s) - format STL
Tubing adapter STL file ⌀ 47–42 mm (Length: 48 mm)
Tubing reducer ⌀47 mm to ⌀42 mm in STL 3D format. Final length of this junction is 48 mm. The larger-diameter tube has a thickness of 2.2 mm and a sleeve length of 25 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 13 mm. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 25 mm
side A outer diameter 47 mm
side A thickness 2.2 mm
side B length 13 mm
side B outer diameter 42 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 35–23 mm (Length: 80 mm) (📦 #2124)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 35–23 mm (Length: 80 mm)
Tube reducer ⌀35 mm to ⌀23 mm in STL format. Final length of this coupler is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends have a fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 35 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 23 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 35–20 mm (Length: 80 mm) (📦 #2137)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 35–20 mm (Length: 80 mm)
Straight tube connector ⌀35 mm to ⌀20 mm in STL format. Final length of this reducer is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends feature a fillet to make tube connection easier.
Parameter Value Unit
side A length 25 mm
side A outer diameter 35 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 35–19 mm (Length: 80 mm) (📦 #2139)

1 object(s) - format STL
Tube adapter STL file ⌀ 35–19 mm (Length: 80 mm)
Inline tube reducer ⌀35 mm to ⌀19 mm in STL format. Length of this sleeve is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 25 mm
side A outer diameter 35 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 19 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 50–25 mm (Length: 90 mm) (📦 #7361)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 50–25 mm (Length: 90 mm)
Tube junction ⌀50 mm to ⌀25 mm in STL format. Final length of this adapter is 90 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 50 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 42–34 mm (Length: 35 mm) (📦 #11382)

1 object(s) - format STL
Tubing adapter STL file ⌀ 42–34 mm (Length: 35 mm)
Straight tube reducer ⌀42 mm to ⌀34 mm in STL format. Length of this sleeve is 35 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 10 mm. The ends are rounded to make tube connection easier.
Parameter Value Unit
side A length 15 mm
side A outer diameter 42 mm
side A thickness 2 mm
side B length 10 mm
side B outer diameter 34 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 30–17 mm (Length: 55 mm) (📦 #9056)

1 object(s) - format STL
Tubing adapter STL file ⌀ 30–17 mm (Length: 55 mm)
Inline tubing adapter ⌀30 mm to ⌀17 mm in STL format. Length of this junction is 55 mm. The larger-diameter tube has a thickness of 2 mm and a length of 25 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 20 mm. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 25 mm
side A outer diameter 30 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 17 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 29–20 mm (Length: 38 mm) (📦 #12632)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 29–20 mm (Length: 38 mm)
Inline tube junction ⌀29 mm to ⌀20 mm in STL 3D format. Total length of this coupler is 38 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 15 mm as well. The axes of the tubes are offset by 2 mm. The ends feature a fillet to make tube connection easier.
Parameter Value Unit
side A length 15 mm
side A outer diameter 29 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 8 mm
axis offset 2 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 30–17 mm (Length: 90 mm) (📦 #2119)

1 object(s) - format STL
Tube adapter STL file ⌀ 30–17 mm (Length: 90 mm)
Inline tube coupler ⌀30 mm to ⌀17 mm in STL format. Length of this junction is 90 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The ends are rounded to make tube connection easier.
Parameter Value Unit
side A length 30 mm
side A outer diameter 30 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 17 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 45–33 mm (Length: 30 mm) (📦 #11384)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 45–33 mm (Length: 30 mm)
Diameter adapter ⌀45 mm to ⌀33 mm in STL 3D format. Final length of this coupler is 30 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 10 mm. The ends have a fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 45 mm
side A thickness 2 mm
side B length 10 mm
side B outer diameter 33 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 24–20 mm (Length: 36 mm) (📦 #12635)

1 object(s) - format STL
Tube adapter STL file ⌀ 24–20 mm (Length: 36 mm)
Inline sleeve ⌀24 mm to ⌀20 mm in STL 3D format. Final length of this reducer is 36 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 15 mm as well. The two axes of the tubes are offset by 1.9 mm. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 15 mm
side A outer diameter 24 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 6 mm
axis offset 1.9 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 16–12 mm (Length: 65 mm) (📦 #10889)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 16–12 mm (Length: 65 mm)
Inline fitting ⌀16 mm to ⌀12 mm in STL 3D format. Final length of this adapter is 65 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 30 mm
side A outer diameter 16 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 12 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 48–47 mm (Length: 77 mm) (📦 #12620)

1 object(s) - format STL
Tubing adapter STL file ⌀ 48–47 mm (Length: 77 mm)
Tube fitting ⌀48 mm to ⌀47 mm in STL format. Final length of this sleeve is 77 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 17 mm. The ends have a fillet.
Parameter Value Unit
side A length 40 mm
side A outer diameter 48 mm
side A thickness 2 mm
side B length 17 mm
side B outer diameter 47 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 55–35 mm (Length: 45 mm) (📦 #11975)

1 object(s) - format STL
Tubing adapter STL file ⌀ 55–35 mm (Length: 45 mm)
Tube reducer ⌀55 mm to ⌀35 mm in STL 3D format. Total length of this reducer is 45 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 20 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm as well. The ends have a fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 55 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 35 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 29–20 mm (Length: 38 mm) (📦 #12633)

1 object(s) - format STL
Tubing adapter STL file ⌀ 29–20 mm (Length: 38 mm)
Tube adapter ⌀29 mm to ⌀20 mm in STL format. Final length of this coupler is 38 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 15 mm as well. The axes of the tubes are offset by 4 mm. The ends have a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 15 mm
side A outer diameter 29 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 8 mm
axis offset 4 mm
ends fillet fillet on bo...

Tubing adapter STL 3D file ⌀ 60–49 mm (Length: 55 mm) (📦 #2988)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 60–49 mm (Length: 55 mm)
Inline sleeve ⌀60 mm to ⌀49 mm in STL 3D format. Final length of this coupler is 55 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends are rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 60 mm
side A thickness 2.5 mm
side B length 25 mm
side B outer diameter 49 mm
side B thickness 2.5 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 35–30 mm (Length: 55 mm) (📦 #2189)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 35–30 mm (Length: 55 mm)
Inline tube junction ⌀35 mm to ⌀30 mm in STL format. Total length of this adapter is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends feature a fillet to make tube connection easier.
Parameter Value Unit
side A length 20 mm
side A outer diameter 35 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 30 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 35–29 mm (Length: 55 mm) (📦 #2197)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 35–29 mm (Length: 55 mm)
Inline tube reducer ⌀35 mm to ⌀29 mm in STL 3D format. Final length of this junction is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends feature a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 20 mm
side A outer diameter 35 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 29 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet fillet on bo...