Custom Tube adapter STL 3D file ⌀ 50–39 mm (Length: 390 mm) 📦#1461

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Tube connector ⌀50 mm to ⌀39 mm in STL 3D format. Total length of this fitting is 390 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 60 mm, the smaller one of 300 mm. The two axes of the tubes are off-center by 5 mm. The ends have a fillet on the outside.
Generation date: 2025-08-28
3D Model Tube adapter STL 3D file ⌀ 50–39 mm (Length: 390 mm)

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  • inline-tube-adapter-lenA60mm-d_model1461-nb0_dd{id}.stl : 3.9 Mo
STL Mesh quality : Linear deflection 0.05 Angular deflection 0.05
No compliance warranty No compliance warranty
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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 60 mm (≃2 3/8 in)
#2 side A outer diameter 50 mm (≃1.97 in)
#3 side A thickness 2 mm (≃0.08 in)
#4 side B length 300 mm (≃11 13/16 in)
#5 side B outer diameter 39 mm (≃1.54 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 30 mm (≃1 3/16 in)
#8 axis offset 5 mm (≃3/16 in)
#9 ends fillet fillet on the outside
Metadata Value
inner diameter (side A) 46 mm (≃1 13/16 in)
inner diameter (side B) 35 mm (≃1 3/8 in)
total length 390 mm (≃15.35 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 

Straight tube coupler ⌀27 mm to ⌀21 mm in STL 3D format. Total length of this sleeve is 395 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 60 mm, the smaller one of 300 mm. The ends have no fillet.
Parameter Value Unit
side A length 60 mm
side A outer diameter 27 mm
side A thickness 2 mm
side B length 300 mm
side B outer diameter 21 mm
side B thickness 2 mm
transition length 35 mm
axis offset 0 mm
ends fillet no fillet
Inline fitting ⌀33 mm to ⌀10 mm in STL format. Final length of this reducer is 260 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 230 mm. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 33 mm
side A thickness 2.9 mm
side B length 230 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet
Tube junction ⌀33 mm to ⌀10 mm in STL 3D format. Final length of this fitting is 250 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 230 mm. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 33 mm
side A thickness 2.9 mm
side B length 230 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet
Straight tube adapter ⌀29 mm to ⌀21 mm in STL 3D format. Final length of this junction is 230 mm. The larger-diameter tube has a thickness of 4 mm and a length of 20 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 200 mm. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 29 mm
side A thickness 4 mm
side B length 200 mm
side B outer diameter 21 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet
Straight tube adapter ⌀29 mm to ⌀25 mm in STL format. Length of this junction is 230 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 200 mm. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 29 mm
side A thickness 4 mm
side B length 200 mm
side B outer diameter 25 mm
side B thickness 4 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet
Straight sleeve ⌀160 mm to ⌀39 mm in STL 3D format. Final length of this coupler is 450 mm. The larger-diameter tube has a thickness of 4 mm and a length of 110 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 300 mm. The axes of the tubes are offset by 25.4 mm. The ends are not rounded.
Parameter Value Unit
side A length 110 mm
side A outer diameter 160 mm
side A thickness 4 mm
side B length 300 mm
side B outer diameter 39 mm
side B thickness 5 mm
transition length 40 mm
axis offset 25.4 mm
ends fillet no fillet
Tube connector ⌀58 mm to ⌀16 mm in STL format. Length of this fitting is 195 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 5 mm, the smaller one of 175 mm. The axes of the tubes are off-center by 2 mm. The ends have no fillet.
Parameter Value Unit
side A length 5 mm
side A outer diameter 58 mm
side A thickness 2 mm
side B length 175 mm
side B outer diameter 16 mm
side B thickness 2 mm
transition length 15 mm
axis offset 2 mm
ends fillet no fillet
Tube adapter ⌀29 mm to ⌀16 mm in STL format. Final length of this fitting is 195 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 5 mm, the smaller one of 175 mm. The axes of the tubes are offset by 2 mm. The ends are not rounded.
Parameter Value Unit
side A length 5 mm
side A outer diameter 29 mm
side A thickness 2 mm
side B length 175 mm
side B outer diameter 16 mm
side B thickness 2 mm
transition length 15 mm
axis offset 2 mm
ends fillet no fillet
Tube fitting ⌀29 mm to ⌀15 mm in STL format. Total length of this connector is 195 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 5 mm, the smaller one of 175 mm. The two axes of the tubes are off-center by 2 mm. The ends are raw.
Parameter Value Unit
side A length 5 mm
side A outer diameter 29 mm
side A thickness 2 mm
side B length 175 mm
side B outer diameter 15 mm
side B thickness 2 mm
transition length 15 mm
axis offset 2 mm
ends fillet no fillet
Straight tube connector ⌀153 mm to ⌀122 mm in STL format. Total length of this fitting is 250 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 190 mm. The two axes of the tubes are off-center by 10 mm. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 153 mm
side A thickness 2 mm
side B length 190 mm
side B outer diameter 122 mm
side B thickness 2 mm
transition length 40 mm
axis offset 10 mm
ends fillet no fillet
Straight tube coupler ⌀56 mm to ⌀17 mm in STL 3D format. Total length of this junction is 213 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 8 mm, the smaller one of 165 mm. The ends are raw.
Parameter Value Unit
side A length 8 mm
side A outer diameter 56 mm
side A thickness 2 mm
side B length 165 mm
side B outer diameter 17 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet
Tube coupler ⌀40 mm to ⌀26 mm in STL format. Total length of this reducer is 200 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 150 mm. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 40 mm
side A thickness 3 mm
side B length 150 mm
side B outer diameter 26 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet
Inline fitting ⌀40 mm to ⌀15 mm in STL 3D format. Final length of this junction is 165 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 150 mm. The ends have no fillet.
Parameter Value Unit
side A length 10 mm
side A outer diameter 40 mm
side A thickness 2 mm
side B length 150 mm
side B outer diameter 15 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet
Inline sleeve ⌀56 mm to ⌀17 mm in STL format. Final length of this fitting is 183 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 8 mm, the smaller one of 135 mm. The ends are raw.
Parameter Value Unit
side A length 8 mm
side A outer diameter 56 mm
side A thickness 2 mm
side B length 135 mm
side B outer diameter 17 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet
Tube coupler ⌀44 mm to ⌀38 mm in STL 3D format. Length of this coupler is 180 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 40 mm, the smaller one of 120 mm. The two axes of the tubes are off-center by 2.9 mm. The ends are raw.
Parameter Value Unit
side A length 40 mm
side A outer diameter 44 mm
side A thickness 2 mm
side B length 120 mm
side B outer diameter 38 mm
side B thickness 2 mm
transition length 20 mm
axis offset 2.9 mm
ends fillet no fillet
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Parameter Value Unit
side A length 40 mm
side A outer diameter 47 mm
side A thickness 3 mm
side B length 120 mm
side B outer diameter 28 mm
side B thickness 2 mm
transition length 20 mm
axis offset 2.9 mm
ends fillet no fillet
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Parameter Value Unit
side A length 30 mm
side A outer diameter 205 mm
side A thickness 2.5 mm
side B length 200 mm
side B outer diameter 190 mm
side B thickness 2.5 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on bo...
Tube reducer ⌀80 mm to ⌀58 mm in STL format. Final length of this fitting is 420 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 200 mm, the smaller one of 200 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 200 mm
side A outer diameter 80 mm
side A thickness 5 mm
side B length 200 mm
side B outer diameter 58 mm
side B thickness 5 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet
Tube reducer ⌀55 mm to ⌀30 mm in STL format. Final length of this coupler is 150 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 100 mm. The two axes of the tubes are offset by 12.4 mm. The ends are not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 55 mm
side A thickness 2 mm
side B length 100 mm
side B outer diameter 30 mm
side B thickness 2 mm
transition length 10 mm
axis offset 12.4 mm
ends fillet no fillet
Inline sleeve ⌀36 mm to ⌀32 mm in STL 3D format. Length of this adapter is 210 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 100 mm, the smaller one of 100 mm as well. The ends are raw.
Parameter Value Unit
side A length 100 mm
side A outer diameter 36 mm
side A thickness 3 mm
side B length 100 mm
side B outer diameter 32 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet
Tubing adapter ⌀37 mm to ⌀14 mm in STL 3D format. Total length of this coupler is 160 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 100 mm. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 50 mm
side A outer diameter 37 mm
side A thickness 2 mm
side B length 100 mm
side B outer diameter 14 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...
Tube adapter ⌀45 mm to ⌀35 mm in STL 3D format. Total length of this sleeve is 155 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 5 mm, the smaller one of 100 mm. The ends have no fillet.
Parameter Value Unit
side A length 5 mm
side A outer diameter 45 mm
side A thickness 2 mm
side B length 100 mm
side B outer diameter 35 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Straight tube connector ⌀150 mm to ⌀90 mm in STL format. Final length of this junction is 200 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 100 mm. The ends feature an external fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 50 mm
side A outer diameter 150 mm
side A thickness 2 mm
side B length 100 mm
side B outer diameter 90 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet fillet on th...
Diameter adapter ⌀149 mm to ⌀100 mm in STL format. Final length of this fitting is 200 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 100 mm. The ends have a fillet on the outside.
Parameter Value Unit
side A length 50 mm
side A outer diameter 149 mm
side A thickness 2 mm
side B length 100 mm
side B outer diameter 100 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet fillet on th...
Inline sleeve ⌀80 mm to ⌀77 mm in STL format. Total length of this fitting is 150 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 90 mm. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 80 mm
side A thickness 2 mm
side B length 90 mm
side B outer diameter 77 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet
Inline tubing adapter ⌀84 mm to ⌀81 mm in STL 3D format. Total length of this connector is 150 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 90 mm. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 84 mm
side A thickness 2 mm
side B length 90 mm
side B outer diameter 81 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet
Tube connector ⌀78 mm to ⌀34 mm in STL format. Total length of this sleeve is 260 mm. The larger-diameter tube has a thickness of 2.5 mm and a length of 60 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 100 mm. The ends are not rounded.
Parameter Value Unit
side A length 60 mm
side A outer diameter 78 mm
side A thickness 2.5 mm
side B length 100 mm
side B outer diameter 34 mm
side B thickness 2 mm
transition length 100 mm
axis offset 0 mm
ends fillet no fillet
Inline tube adapter ⌀50 mm to ⌀49 mm in STL 3D format. Length of this fitting is 200 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 100 mm, the smaller one of 90 mm. The ends have a fillet on the inside.
Parameter Value Unit
side A length 100 mm
side A outer diameter 50 mm
side A thickness 2 mm
side B length 90 mm
side B outer diameter 49 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on th...