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Tube adapter STL 3D file ⌀ 100–50 mm (Length: 90 mm) 📦#1453

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Tube fitting ⌀100 mm to ⌀50 mm in STL format. Total length of this sleeve is 90 mm. The larger-diameter tube has a thickness of 2 mm and a sleeve length of 30 mm. The smaller-diameter tube has a thickness of 20 mm and a length of 30 mm as well. The two axes of the tubes are off-center by 25.4 mm. The ends are rounded on the inside to ease the connection.
Generation date: 2025-08-27
3D Model Tube adapter STL 3D file ⌀ 100–50 mm (Length: 90 mm)

3D model download

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  • inline-tube-adapter-lenA30mm-d_model1453-nb0_dd{id}.stl : 6.7 Mo
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 30 mm
#2 side A outer diameter 100 mm
#3 side A thickness 2 mm
#4 side B length 30 mm
#5 side B outer diameter 50 mm
#6 side B thickness 20 mm
#7 transition length 30 mm
#8 axis offset 25.4 mm
#9 ends fillet fillet on the inside
illustration of the parameters
Representation of the parameters

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 reducer ⌀80 mm to ⌀66 mm in STL format. Total length of this fitting is 120 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 40 mm. The smaller-diameter tube has a thickness of 20 mm and a length of 30 mm. The ends are raw.
Parameter Value Unit
side A length 40 mm
side A outer diameter 80 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 66 mm
side B thickness 20 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Straight tube reducer ⌀100 mm to ⌀50 mm in STL 3D format. Length of this coupler is 140 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 40 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 40 mm as well. The axes of the tubes are off-center by 25.4 mm. The ends have a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 40 mm
side A outer diameter 100 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 50 mm
side B thickness 5 mm
transition length 60 mm
axis offset 25.4 mm
ends fillet fillet on bo...
Inline tube junction ⌀100 mm to ⌀50 mm in STL 3D format. Length of this coupler is 160 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 60 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 40 mm. The axes of the tubes are off-center by 25.4 mm. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 60 mm
side A outer diameter 100 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 50 mm
side B thickness 5 mm
transition length 60 mm
axis offset 25.4 mm
ends fillet fillet on bo...
Diameter adapter ⌀100 mm to ⌀51 mm in STL format. Total length of this reducer is 160 mm. The larger-diameter tube has a thickness of 4 mm and a length of 60 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 40 mm. The axes of the tubes are off-center by 25.4 mm. The ends feature a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 60 mm
side A outer diameter 100 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 51 mm
side B thickness 5 mm
transition length 60 mm
axis offset 25.4 mm
ends fillet fillet on bo...
Straight tube fitting ⌀100 mm to ⌀51 mm in STL format. Total length of this sleeve is 160 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 60 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 40 mm. The two axes of the tubes are off-center by 25.4 mm. The ends are raw.
Parameter Value Unit
side A length 60 mm
side A outer diameter 100 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 51 mm
side B thickness 5 mm
transition length 60 mm
axis offset 25.4 mm
ends fillet no fillet
Inline tube coupler ⌀80 mm to ⌀50 mm in STL 3D format. Final length of this sleeve is 120 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 40 mm. The two axes of the tubes are off-center by 14.9 mm. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 50 mm
side A outer diameter 80 mm
side A thickness 5 mm
side B length 40 mm
side B outer diameter 50 mm
side B thickness 5 mm
transition length 30 mm
axis offset 14.9 mm
ends fillet fillet on bo...
Inline tube adapter ⌀150 mm to ⌀120 mm in STL format. Final length of this fitting is 108 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 22.5 mm, the smaller one of 35.5 mm. The axes of the tubes are offset by 14 mm. The ends have a fillet on the outside to make tube connection easier.
Parameter Value Unit
side A length 22.5 mm
side A outer diameter 150 mm
side A thickness 5 mm
side B length 35.5 mm
side B outer diameter 120 mm
side B thickness 5 mm
transition length 50 mm
axis offset 14 mm
ends fillet fillet on th...
Straight sleeve ⌀149.6 mm to ⌀99.6 mm in STL 3D format. Final length of this sleeve is 80 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The two axes of the tubes are offset by 24.9 mm. 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 149.6 mm
side A thickness 4 mm
side B length 30 mm
side B outer diameter 99.6 mm
side B thickness 4 mm
transition length 20 mm
axis offset 24.9 mm
ends fillet fillet on bo...
Straight sleeve ⌀149.6 mm to ⌀99.6 mm in STL 3D format. Total length of this coupler is 80 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The two axes of the tubes are offset by 20 mm. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 149.6 mm
side A thickness 4 mm
side B length 30 mm
side B outer diameter 99.6 mm
side B thickness 4 mm
transition length 20 mm
axis offset 20 mm
ends fillet fillet on bo...
Straight sleeve ⌀124 mm to ⌀103 mm in STL format. Total length of this coupler is 120 mm. The thickness of the tubes is identical: 6 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 40 mm as well. The ends are rounded to make tube connection easier.
Parameter Value Unit
side A length 40 mm
side A outer diameter 124 mm
side A thickness 6 mm
side B length 40 mm
side B outer diameter 103 mm
side B thickness 6 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on bo...
Inline fitting ⌀115 mm to ⌀105 mm in STL 3D format. Final length of this fitting is 120 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 50 mm as well. The axes of the tubes are off-center by 4.9 mm. The ends feature a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 50 mm
side A outer diameter 115 mm
side A thickness 5 mm
side B length 50 mm
side B outer diameter 105 mm
side B thickness 5 mm
transition length 20 mm
axis offset 4.9 mm
ends fillet fillet on bo...
Tube adapter ⌀117 mm to ⌀103 mm in STL 3D format. Length of this coupler is 90 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 40 mm as well. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 40 mm
side A outer diameter 117 mm
side A thickness 5 mm
side B length 40 mm
side B outer diameter 103 mm
side B thickness 5 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...
Straight tube coupler ⌀50 mm to ⌀45 mm in STL 3D format. Length of this adapter is 90 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 50 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 45 mm
side B thickness 5 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet
Tube adapter ⌀135 mm to ⌀100 mm in STL 3D format. Length of this coupler is 140 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. 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 135 mm
side A thickness 5 mm
side B length 50 mm
side B outer diameter 100 mm
side B thickness 5 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on th...
Inline sleeve ⌀120 mm to ⌀93 mm in STL 3D format. Final length of this coupler is 110 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 120 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 93 mm
side B thickness 5 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Straight tube coupler ⌀68 mm to ⌀53 mm in STL 3D format. Final length of this fitting is 65 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 4 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 68 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 53 mm
side B thickness 4 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet
Tube connector ⌀140 mm to ⌀93 mm in STL 3D format. Length of this adapter is 110 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 140 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 93 mm
side B thickness 5 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Straight tube reducer ⌀110 mm to ⌀80 mm in STL format. Final length of this connector is 63 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 25 mm, the smaller one of 25 mm as well. The ends feature an external fillet to ease the connection.
Parameter Value Unit
side A length 25 mm
side A outer diameter 110 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 80 mm
side B thickness 4 mm
transition length 13 mm
axis offset 0 mm
ends fillet fillet on th...
Straight tube coupler ⌀110 mm to ⌀80 mm in STL format. Total length of this reducer is 58 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 25 mm. The ends have a fillet on the outside.
Parameter Value Unit
side A length 20 mm
side A outer diameter 110 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 80 mm
side B thickness 4 mm
transition length 13 mm
axis offset 0 mm
ends fillet fillet on th...
Inline tube adapter ⌀160 mm to ⌀90 mm in STL 3D format. Final length of this reducer is 250 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 100 mm. The axes of the tubes are off-center by 25.4 mm. The ends are rounded to make tube connection easier.
Parameter Value Unit
side A length 110 mm
side A outer diameter 160 mm
side A thickness 4 mm
side B length 100 mm
side B outer diameter 90 mm
side B thickness 5 mm
transition length 40 mm
axis offset 25.4 mm
ends fillet fillet on bo...
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 connector ⌀111 mm to ⌀90 mm in STL format. Final length of this adapter is 170 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 70 mm, the smaller one of 80 mm. The ends have a fillet on the outside to ease the connection.
Parameter Value Unit
side A length 70 mm
side A outer diameter 111 mm
side A thickness 5 mm
side B length 80 mm
side B outer diameter 90 mm
side B thickness 5 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on th...
Straight tube fitting ⌀68 mm to ⌀52 mm in STL 3D format. Total length of this connector is 65 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 68 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 52 mm
side B thickness 4 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet
Straight sleeve ⌀68 mm to ⌀53 mm in STL 3D format. Total length of this sleeve is 65 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 68 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 53 mm
side B thickness 4 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet
Inline tube junction ⌀70 mm to ⌀42 mm in STL 3D format. Total length of this coupler is 80 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The two axes of the tubes are offset by 13.8 mm. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 70 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 42 mm
side B thickness 3 mm
transition length 20 mm
axis offset 13.8 mm
ends fillet no fillet
Inline fitting ⌀70 mm to ⌀42 mm in STL 3D format. Final length of this reducer is 87 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 27 mm, the smaller one of 40 mm. The axes of the tubes are off-center by 13.8 mm. The ends are raw.
Parameter Value Unit
side A length 27 mm
side A outer diameter 70 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 42 mm
side B thickness 3 mm
transition length 20 mm
axis offset 13.8 mm
ends fillet no fillet
Inline tube adapter ⌀64 mm to ⌀49 mm in STL format. Length of this adapter is 63 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 25 mm, the smaller one of 25 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 64 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 49 mm
side B thickness 4 mm
transition length 13 mm
axis offset 0 mm
ends fillet no fillet
Tube coupler ⌀88 mm to ⌀25 mm in STL format. Total length of this adapter is 63 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 25 mm, the smaller one of 25 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 88 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 25 mm
side B thickness 4 mm
transition length 13 mm
axis offset 0 mm
ends fillet no fillet
Straight tube connector ⌀80 mm to ⌀70 mm in STL 3D format. Total length of this adapter is 65 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 25 mm. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 80 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 70 mm
side B thickness 4 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet
Inline tube adapter ⌀100 mm to ⌀80 mm in STL format. Total length of this junction is 63 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 25 mm, the smaller one of 25 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 100 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 80 mm
side B thickness 4 mm
transition length 13 mm
axis offset 0 mm
ends fillet no fillet