Custom Tubing adapter STL 3D file ⌀ 13–6 mm (Length: 30 mm) 📦#9291

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Straight tube fitting ⌀13 mm to ⌀6 mm in STL 3D format. Final length of this connector is 30 mm. The larger-diameter tube has a thickness of 5 mm and a length of 10 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 10 mm as well. The ends have no fillet.
Generation date: 2026-06-04
3D Model Tubing adapter STL 3D file ⌀ 13–6 mm (Length: 30 mm)

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  • inline-tube-adapter-lenA10mm-d_model9291-nb0_dd{id}.stl : 965.3 Ko
STL Mesh quality : Linear deflection 0.05 Angular deflection 0.05
No compliance warranty No compliance warranty
(attribution - commercial use allowed)
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Values for this model

This model was generated by the Inline tube adapter template, with the following values:
Parameter Value
#1 side A length 10 mm (≃0.39 in)
#2 side A outer diameter 13 mm (≃1/2 in)
#3 side A thickness 5 mm (≃3/16 in)
#4 side B length 10 mm (≃0.39 in)
#5 side B outer diameter 6 mm (≃1/4 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 10 mm (≃0.39 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 3 mm (≃1/8 in)
inner diameter (side B) 2 mm (≃0.08 in)
total length 30 mm (≃1 3/16 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 

Tube adapter STL 3D file ⌀ 14–6 mm (Length: 50 mm) (📦 #9286)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 14–6 mm (Length: 50 mm)
Tubing adapter ⌀14 mm to ⌀6 mm in STL 3D format. Final length of this fitting is 50 mm. The larger-diameter tube has a thickness of 5 mm and a length of 20 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm as well. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 14 mm
side A thickness 5 mm
side B length 20 mm
side B outer diameter 6 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 32–17 mm (Length: 70 mm) (📦 #9496)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 32–17 mm (Length: 70 mm)
Tubing reducer ⌀32 mm to ⌀17 mm in STL 3D format. Final length of this junction is 70 mm. The larger-diameter tube has a thickness of 5 mm and a sleeve length of 25 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 30 mm. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 32 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 17 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 19–9 mm (Length: 45 mm) (📦 #4915)

1 object(s) - format STL
Tubing adapter STL file ⌀ 19–9 mm (Length: 45 mm)
Inline tube junction ⌀19 mm to ⌀9 mm in STL format. Length of this reducer is 45 mm. The larger-diameter tube has a thickness of 5 mm and a sleeve length of 20 mm. The smaller-diameter tube has a thickness of 4 mm and a length of 15 mm. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 19 mm
side A thickness 5 mm
side B length 15 mm
side B outer diameter 9 mm
side B thickness 4 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 18–17 mm (Length: 40 mm) (📦 #6854)

1 object(s) - format STL
Tubing adapter STL file ⌀ 18–17 mm (Length: 40 mm)
Inline tubing adapter ⌀18 mm to ⌀17 mm in STL 3D format. Total length of this reducer is 40 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 10 mm. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 18 mm
side A thickness 3 mm
side B length 10 mm
side B outer diameter 17 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 37–25 mm (Length: 30 mm) (📦 #7795)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 37–25 mm (Length: 30 mm)
Tube connector ⌀37 mm to ⌀25 mm in STL 3D format. Final length of this sleeve is 30 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 10 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 10 mm
side A outer diameter 37 mm
side A thickness 4 mm
side B length 10 mm
side B outer diameter 25 mm
side B thickness 4 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 29–25 mm (Length: 40 mm) (📦 #7794)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 29–25 mm (Length: 40 mm)
Inline tubing adapter ⌀29 mm to ⌀25 mm in STL format. Final length of this adapter is 40 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 10 mm. The ends are not rounded.
Parameter Value Unit
side A length 20 mm
side A outer diameter 29 mm
side A thickness 4 mm
side B length 10 mm
side B outer diameter 25 mm
side B thickness 4 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 33–18 mm (Length: 50 mm) (📦 #1525)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 33–18 mm (Length: 50 mm)
Straight tube connector ⌀33 mm to ⌀18 mm in STL format. Length of this junction is 50 mm. The larger-diameter tube has a thickness of 2.9 mm and a length of 15 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm. The ends are raw.
Parameter Value Unit
side A length 15 mm
side A outer diameter 33 mm
side A thickness 2.9 mm
side B length 20 mm
side B outer diameter 18 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 23–22 mm (Length: 35 mm) (📦 #6755)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 23–22 mm (Length: 35 mm)
Straight sleeve ⌀23 mm to ⌀22 mm in STL 3D format. Length of this coupler is 35 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 15 mm as well. The ends are raw.
Parameter Value Unit
side A length 15 mm
side A outer diameter 23 mm
side A thickness 3 mm
side B length 15 mm
side B outer diameter 22 mm
side B thickness 3 mm
transition length 5 mm
axis offset 00 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 30–8 mm (Length: 50 mm) (📦 #4534)

1 object(s) - format STL
Tubing adapter STL file ⌀ 30–8 mm (Length: 50 mm)
Straight tube connector ⌀30 mm to ⌀8 mm in STL 3D format. Length of this adapter is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 15 mm. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 30 mm
side A thickness 3 mm
side B length 15 mm
side B outer diameter 8 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 51–20 mm (Length: 36 mm) (📦 #9424)

1 object(s) - format STL
Tubing adapter STL file ⌀ 51–20 mm (Length: 36 mm)
Straight tube reducer ⌀51 mm to ⌀20 mm in STL format. Final length of this sleeve is 36 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 12 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 12 mm as well. The axes of the tubes are offset by 2 mm. The ends are raw.
Parameter Value Unit
side A length 12 mm
side A outer diameter 51 mm
side A thickness 3 mm
side B length 12 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 12 mm
axis offset 2 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 50–22 mm (Length: 36 mm) (📦 #9413)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 50–22 mm (Length: 36 mm)
Straight tubing adapter ⌀50 mm to ⌀22 mm in STL format. Total length of this junction is 36 mm. The larger-diameter tube has a thickness of 3 mm and a length of 12 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 12 mm as well. The axes of the tubes are offset by 2 mm. The ends are raw.
Parameter Value Unit
side A length 12 mm
side A outer diameter 50 mm
side A thickness 3 mm
side B length 12 mm
side B outer diameter 22 mm
side B thickness 2 mm
transition length 12 mm
axis offset 2 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 51–21 mm (Length: 36 mm) (📦 #9416)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 51–21 mm (Length: 36 mm)
Tubing reducer ⌀51 mm to ⌀21 mm in STL format. Length of this coupler is 36 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 12 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 12 mm as well. The axes of the tubes are off-center by 2 mm. The ends have no fillet.
Parameter Value Unit
side A length 12 mm
side A outer diameter 51 mm
side A thickness 3 mm
side B length 12 mm
side B outer diameter 21 mm
side B thickness 2 mm
transition length 12 mm
axis offset 2 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 52–20 mm (Length: 36 mm) (📦 #9423)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 52–20 mm (Length: 36 mm)
Straight tube coupler ⌀52 mm to ⌀20 mm in STL format. Length of this coupler is 36 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 12 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 12 mm as well. The two axes of the tubes are off-center by 2 mm. The ends are not rounded.
Parameter Value Unit
side A length 12 mm
side A outer diameter 52 mm
side A thickness 3 mm
side B length 12 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 12 mm
axis offset 2 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 33–26 mm (Length: 50 mm) (📦 #1526)

1 object(s) - format STL (5.0/5) 1 vote(s)
Tube adapter STL 3D file ⌀ 33–26 mm (Length: 50 mm)
Straight tube adapter ⌀33 mm to ⌀26 mm in STL 3D format. Final length of this fitting is 50 mm. The larger-diameter tube has a thickness of 2.8 mm and a sleeve length of 15 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 33 mm
side A thickness 2.8 mm
side B length 20 mm
side B outer diameter 26 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 36–19 mm (Length: 60 mm) (📦 #9122)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 36–19 mm (Length: 60 mm)
Tubing adapter ⌀36 mm to ⌀19 mm in STL 3D format. Length of this sleeve is 60 mm. The larger-diameter tube has a thickness of 3 mm and a length of 25 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 25 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 36 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 19 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 38–19 mm (Length: 60 mm) (📦 #9123)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 38–19 mm (Length: 60 mm)
Tube adapter ⌀38 mm to ⌀19 mm in STL format. Length of this sleeve is 60 mm. The larger-diameter tube has a thickness of 3 mm and a length of 25 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 25 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 38 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 19 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 39–19 mm (Length: 60 mm) (📦 #9126)

1 object(s) - format STL
Tubing adapter STL file ⌀ 39–19 mm (Length: 60 mm)
Inline tubing adapter ⌀39 mm to ⌀19 mm in STL format. Total length of this junction is 60 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 25 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 25 mm as well. The ends are raw.
Parameter Value Unit
side A length 25 mm
side A outer diameter 39 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 19 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 45–25 mm (Length: 45 mm) (📦 #2421)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 45–25 mm (Length: 45 mm)
Straight sleeve ⌀45 mm to ⌀25 mm in STL 3D format. Length of this coupler is 45 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 20 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 20 mm as well. The ends feature an external fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 45 mm
side A thickness 4 mm
side B length 20 mm
side B outer diameter 25 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL 3D file ⌀ 33–14 mm (Length: 40 mm) (📦 #4348)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 33–14 mm (Length: 40 mm)
Tubing reducer ⌀33 mm to ⌀14 mm in STL format. Length of this coupler is 40 mm. The larger-diameter tube has a thickness of 2.5 mm and a sleeve length of 15 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 15 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 33 mm
side A thickness 2.5 mm
side B length 15 mm
side B outer diameter 14 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 32–15 mm (Length: 21 mm) (📦 #2449)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 32–15 mm (Length: 21 mm)
Straight tube adapter ⌀32 mm to ⌀15 mm in STL 3D format. Length of this reducer is 21 mm. The thickness of the tubes is identical: 3.5 mm. The larger-diameter tube has a sleeve length of 7 mm, the smaller one of 7 mm as well. The ends feature an external fillet.
Parameter Value Unit
side A length 7 mm
side A outer diameter 32 mm
side A thickness 3.5 mm
side B length 7 mm
side B outer diameter 15 mm
side B thickness 3.5 mm
transition length 7 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL 3D file ⌀ 26–10 mm (Length: 45 mm) (📦 #3395)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 26–10 mm (Length: 45 mm)
Tubing adapter ⌀26 mm to ⌀10 mm in STL format. Length of this junction 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 10 mm. The ends feature an external fillet to make tube connection easier.
Parameter Value Unit
side A length 20 mm
side A outer diameter 26 mm
side A thickness 3 mm
side B length 10 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL 3D file ⌀ 43–35 mm (Length: 35 mm) (📦 #7073)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 43–35 mm (Length: 35 mm)
Straight tube adapter ⌀43 mm to ⌀35 mm in STL format. Length of this connector is 35 mm. The larger-diameter tube has a thickness of 2.8 mm and a length of 15 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 15 mm as well. The ends are raw.
Parameter Value Unit
side A length 15 mm
side A outer diameter 43 mm
side A thickness 2.8 mm
side B length 15 mm
side B outer diameter 35 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 32–29 mm (Length: 65 mm) (📦 #8233)

1 object(s) - format STL
Tubing adapter STL file ⌀ 32–29 mm (Length: 65 mm)
Inline tube junction ⌀32 mm to ⌀29 mm in STL 3D format. Length of this adapter is 65 mm. The larger-diameter tube has a thickness of 5 mm and a sleeve length of 35 mm. The smaller-diameter tube has a thickness of 4 mm and a length of 10 mm. The ends have no fillet.
Parameter Value Unit
side A length 35 mm
side A outer diameter 32 mm
side A thickness 5 mm
side B length 10 mm
side B outer diameter 29 mm
side B thickness 4 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 30–10 mm (Length: 35 mm) (📦 #4536)

1 object(s) - format STL
Tube adapter STL file ⌀ 30–10 mm (Length: 35 mm)
Tubing reducer ⌀30 mm to ⌀10 mm in STL 3D format. Final length of this reducer is 35 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 10 mm, the smaller one of 10 mm as well. The axes of the tubes are offset by 8 mm. The ends are not rounded.
Parameter Value Unit
side A length 10 mm
side A outer diameter 30 mm
side A thickness 3 mm
side B length 10 mm
side B outer diameter 10 mm
side B thickness 3 mm
transition length 15 mm
axis offset 8 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 39–24 mm (Length: 60 mm) (📦 #9340)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 39–24 mm (Length: 60 mm)
Tube coupler ⌀39 mm to ⌀24 mm in STL 3D format. Final length of this connector is 60 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 25 mm. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 39 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 24 mm
side B thickness 4 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 33–19 mm (Length: 56 mm) (📦 #1338)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 33–19 mm (Length: 56 mm)
Diameter adapter ⌀33 mm to ⌀19 mm in STL 3D format. Total length of this fitting is 56 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 19 mm, the smaller one of 10 mm. The two axes of the tubes are offset by 6.1 mm. The ends are raw.
Parameter Value Unit
side A length 19 mm
side A outer diameter 33 mm
side A thickness 4 mm
side B length 10 mm
side B outer diameter 19 mm
side B thickness 4 mm
transition length 27 mm
axis offset 6.1 mm
ends fillet no fillet

Tube adapter STL file ⌀ 39–38 mm (Length: 45 mm) (📦 #7706)

1 object(s) - format STL
Tube adapter STL file ⌀ 39–38 mm (Length: 45 mm)
Tube fitting ⌀39 mm to ⌀38 mm in STL 3D format. Final length of this coupler is 45 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 have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 39 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 38 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet