Custom Tube adapter STL file ⌀ 69–68 mm (Length: 90 mm) 📦#4851

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Tube junction ⌀69 mm to ⌀68 mm in STL format. Total length of this fitting is 90 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 30 mm. The ends are rounded.
Generation date: 2025-12-16
3D Model Tube adapter STL file ⌀ 69–68 mm (Length: 90 mm)

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  • inline-tube-adapter-lenA20mm-d_model4851-nb0_dd{id}.stl : 6.5 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 20 mm (≃0.79 in)
#2 side A outer diameter 69 mm (≃2.72 in)
#3 side A thickness 2 mm (≃0.08 in)
#4 side B length 30 mm (≃1 3/16 in)
#5 side B outer diameter 68 mm (≃2 11/16 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 40 mm (≃1 9/16 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet fillet on both inside
and outside
Metadata Value
inner diameter (side A) 65 mm (≃2 9/16 in)
inner diameter (side B) 64 mm (≃2.52 in)
total length 90 mm (≃3.54 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 fitting ⌀96 mm to ⌀79 mm in STL format. Total length of this connector is 100 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.
Parameter Value Unit
side A length 30 mm
side A outer diameter 96 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 79 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on bo...
Diameter adapter ⌀96 mm to ⌀80 mm in STL 3D format. Length of this junction is 100 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.
Parameter Value Unit
side A length 30 mm
side A outer diameter 96 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 80 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on bo...
Straight tube adapter ⌀68 mm to ⌀67 mm in STL format. Length of this coupler is 99 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 35 mm, the smaller one of 35 mm as well. The ends have a fillet.
Parameter Value Unit
side A length 35 mm
side A outer diameter 68 mm
side A thickness 2 mm
side B length 35 mm
side B outer diameter 67 mm
side B thickness 2 mm
transition length 29 mm
axis offset 0 mm
ends fillet fillet on bo...
Straight tube coupler ⌀104 mm to ⌀65 mm in STL 3D format. Total length of this adapter is 85 mm. The larger-diameter tube has a thickness of 2 mm and a length of 20 mm. The smaller-diameter tube has a thickness of 2.1 mm and a length of 35 mm. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 20 mm
side A outer diameter 104 mm
side A thickness 2 mm
side B length 35 mm
side B outer diameter 65 mm
side B thickness 2.1 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...
Tube connector ⌀68 mm to ⌀60 mm in STL 3D format. Final length of this fitting is 90 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 30 mm. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 20 mm
side A outer diameter 68 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 60 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on bo...
Inline tube coupler ⌀104 mm to ⌀65 mm in STL format. Final length of this adapter is 85 mm. The larger-diameter tube has a thickness of 2.4 mm and a length of 20 mm. The smaller-diameter tube has a thickness of 2.1 mm and a length of 35 mm. The ends feature a fillet to ease the connection.
Parameter Value Unit
side A length 20 mm
side A outer diameter 104 mm
side A thickness 2.4 mm
side B length 35 mm
side B outer diameter 65 mm
side B thickness 2.1 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...
Inline fitting ⌀100 mm to ⌀50 mm in STL format. Total length of this sleeve is 100 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 100 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 50 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on bo...
Inline tubing adapter ⌀68 mm to ⌀67 mm in STL format. Final length of this fitting is 100 mm. The larger-diameter tube has a thickness of 2 mm and a sleeve length of 35 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 35 mm as well. The ends are rounded to make tube connection easier.
Parameter Value Unit
side A length 35 mm
side A outer diameter 68 mm
side A thickness 2 mm
side B length 35 mm
side B outer diameter 67 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...
Diameter adapter ⌀78 mm to ⌀65 mm in STL 3D format. Length of this reducer is 70 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 20 mm. The ends are rounded to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 30 mm
side A outer diameter 78 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 65 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...
Tube coupler ⌀85 mm to ⌀60 mm in STL 3D format. Final length of this connector is 100 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 35 mm, the smaller one of 40 mm. The ends feature a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 35 mm
side A outer diameter 85 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 60 mm
side B thickness 2 mm
transition length 25 mm
axis offset 0 mm
ends fillet fillet on bo...
Tube fitting ⌀104 mm to ⌀45 mm in STL 3D format. Final length of this junction is 100 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 104 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 45 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on bo...
Tube adapter ⌀102 mm to ⌀43 mm in STL 3D format. Total length of this sleeve is 100 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 102 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 43 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on bo...
Straight tube connector ⌀100 mm to ⌀80 mm in STL 3D format. Final length of this connector is 100 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 axes of the tubes are offset by 5 mm. 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 100 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 80 mm
side B thickness 2 mm
transition length 40 mm
axis offset 5 mm
ends fillet fillet on bo...
Tube coupler ⌀80 mm to ⌀50 mm in STL 3D format. Final length of this fitting is 90 mm. The thickness of the tubes is identical: 3 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 facilitate the connection of the two tubes.
Parameter Value Unit
side A length 25 mm
side A outer diameter 80 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 50 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on bo...
Inline tube reducer ⌀80 mm to ⌀50 mm in STL format. Total length of this coupler is 60 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 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 80 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 50 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...
Tubing adapter ⌀96 mm to ⌀79 mm in STL format. Length of this coupler 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 make tube connection easier.
Parameter Value Unit
side A length 30 mm
side A outer diameter 96 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 79 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...
Diameter adapter ⌀67 mm to ⌀65 mm in STL 3D format. Length of this adapter is 100 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 35 mm, the smaller one of 35 mm as well. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 35 mm
side A outer diameter 67 mm
side A thickness 3 mm
side B length 35 mm
side B outer diameter 65 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...
Tubing reducer ⌀98 mm to ⌀80 mm in STL format. Total length of this adapter is 98 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 28 mm. The ends are rounded to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 30 mm
side A outer diameter 98 mm
side A thickness 3 mm
side B length 28 mm
side B outer diameter 80 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on bo...
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...
Tube junction ⌀102 mm to ⌀79 mm in STL 3D format. Final length of this adapter 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 are rounded to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 102 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 79 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...
Tubing reducer ⌀101 mm to ⌀83 mm in STL format. Final length of this connector is 120 mm. The larger-diameter tube has a thickness of 2 mm and a length of 30 mm. The smaller-diameter tube has a thickness of 2.5 mm and a length of 50 mm. 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 101 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 83 mm
side B thickness 2.5 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on bo...
Tube adapter ⌀103 mm to ⌀83 mm in STL 3D format. Final length of this sleeve is 105 mm. The larger-diameter tube has a thickness of 2 mm and a sleeve length of 25 mm. The smaller-diameter tube has a thickness of 2.1 mm and a length of 50 mm. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 25 mm
side A outer diameter 103 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 83 mm
side B thickness 2.1 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...
Diameter adapter ⌀67 mm to ⌀45 mm in STL format. Total length of this coupler is 120 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 45 mm, the smaller one of 40 mm. The ends are rounded to make tube connection easier.
Parameter Value Unit
side A length 45 mm
side A outer diameter 67 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 45 mm
side B thickness 2 mm
transition length 35 mm
axis offset 0 mm
ends fillet fillet on bo...
Tubing adapter ⌀87 mm to ⌀65 mm in STL 3D format. Length of this junction is 115 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 25 mm. The ends are rounded to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 50 mm
side A outer diameter 87 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 65 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on bo...
Tube fitting ⌀67 mm to ⌀43 mm in STL format. Length of this coupler is 119 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 45 mm, the smaller one of 40 mm. The ends feature a fillet to ease the connection.
Parameter Value Unit
side A length 45 mm
side A outer diameter 67 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 43 mm
side B thickness 2 mm
transition length 34 mm
axis offset 0 mm
ends fillet fillet on bo...
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...
Inline tube coupler ⌀67 mm to ⌀41 mm in STL format. Length of this reducer is 120 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 45 mm, the smaller one of 40 mm. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 45 mm
side A outer diameter 67 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 41 mm
side B thickness 2 mm
transition length 35 mm
axis offset 0 mm
ends fillet fillet on bo...
Inline fitting ⌀100 mm to ⌀53 mm in STL 3D format. Final length of this connector is 100 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 an internal fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 30 mm
side A outer diameter 100 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 53 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on th...
Diameter adapter ⌀67 mm to ⌀40 mm in STL 3D format. Length of this sleeve is 120 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 45 mm, the smaller one of 40 mm. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 45 mm
side A outer diameter 67 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 40 mm
side B thickness 2 mm
transition length 35 mm
axis offset 0 mm
ends fillet fillet on bo...
Inline fitting ⌀100 mm to ⌀50 mm in STL 3D format. Total length of this reducer is 100 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 an internal fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 30 mm
side A outer diameter 100 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 50 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on th...