Custom Tubing adapter STL file ⌀ 75–25 mm (Length: 110 mm) 📦#4283

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Tube adapter ⌀75 mm to ⌀25 mm in STL format. Final length of this coupler is 110 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 40 mm. The ends are rounded on the inside to ease the connection.
Generation date: 2025-12-04
3D Model Tubing adapter STL file ⌀ 75–25 mm (Length: 110 mm)

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  • inline-tube-adapter-lenA30mm-d_model4283-nb0_dd{id}.stl : 6.2 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 30 mm (≃1 3/16 in)
#2 side A outer diameter 75 mm (≃2 15/16 in)
#3 side A thickness 2 mm (≃0.08 in)
#4 side B length 40 mm (≃1 9/16 in)
#5 side B outer diameter 25 mm (≃0.98 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 the inside
Metadata Value
inner diameter (side A) 71 mm (≃2.80 in)
inner diameter (side B) 21 mm (≃13/16 in)
total length 110 mm (≃4.33 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

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Parameter Value Unit
side A length 30 mm
side A outer diameter 100 mm
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Parameter Value Unit
side A length 30 mm
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Parameter Value Unit
side A length 40 mm
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Parameter Value Unit
side A length 30 mm
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Parameter Value Unit
side A length 30 mm
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side A thickness 3 mm
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Parameter Value Unit
side A length 40 mm
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Parameter Value Unit
side A length 30 mm
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Parameter Value Unit
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Parameter Value Unit
side A length 30 mm
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side A thickness 2 mm
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Parameter Value Unit
side A length 30 mm
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side A thickness 3 mm
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transition length 29 mm
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Parameter Value Unit
side A length 30 mm
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Parameter Value Unit
side A length 45 mm
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transition length 35 mm
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Parameter Value Unit
side A length 29 mm
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side A thickness 3 mm
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Parameter Value Unit
side A length 45 mm
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Parameter Value Unit
side A length 25 mm
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side A thickness 2 mm
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side B thickness 2 mm
transition length 20 mm
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Parameter Value Unit
side A length 30 mm
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Parameter Value Unit
side A length 30 mm
side A outer diameter 64 mm
side A thickness 3 mm
side B length 30 mm
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side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
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Parameter Value Unit
side A length 45 mm
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side A thickness 2 mm
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side B outer diameter 43 mm
side B thickness 2 mm
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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...
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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...
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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...
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Parameter Value Unit
side A length 30 mm
side A outer diameter 50 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 20 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on th...
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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...
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Parameter Value Unit
side A length 35 mm
side A outer diameter 68 mm
side A thickness 2 mm
side B length 70 mm
side B outer diameter 39 mm
side B thickness 2 mm
transition length 25 mm
axis offset 0 mm
ends fillet fillet on th...
Straight tube fitting ⌀76 mm to ⌀50 mm in STL 3D format. Length of this fitting 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 an internal fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 76 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 th...
Inline sleeve ⌀78 mm to ⌀50 mm in STL format. Length of this sleeve 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 two axes of the tubes are offset by 1 mm. The ends feature an internal fillet to ease the connection.
Parameter Value Unit
side A length 20 mm
side A outer diameter 78 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 1 mm
ends fillet fillet on th...
Tube connector ⌀78 mm to ⌀50 mm in STL 3D format. Length of this junction is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 20 mm. The axes of the tubes are off-center by 1 mm. The ends have a fillet on the inside to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 40 mm
side A outer diameter 78 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 1 mm
ends fillet fillet on th...
Inline tube reducer ⌀80 mm to ⌀50 mm in STL 3D format. Total length of this connector 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 two axes of the tubes are offset by 1 mm. The ends feature an internal 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 1 mm
ends fillet fillet on th...
Tube connector ⌀77 mm to ⌀50 mm in STL format. Total length of this fitting is 125 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 45 mm, the smaller one of 40 mm. The ends are rounded on the outside to make tube connection easier.
Parameter Value Unit
side A length 45 mm
side A outer diameter 77 mm
side A thickness 2.5 mm
side B length 40 mm
side B outer diameter 50 mm
side B thickness 2.5 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on th...
Inline tube adapter ⌀77 mm to ⌀50 mm in STL 3D format. Length of this sleeve is 125 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 45 mm, the smaller one of 40 mm. The two axes of the tubes are offset by 1 mm. The ends have a fillet on the outside.
Parameter Value Unit
side A length 45 mm
side A outer diameter 77 mm
side A thickness 2.5 mm
side B length 40 mm
side B outer diameter 50 mm
side B thickness 2.5 mm
transition length 40 mm
axis offset 1 mm
ends fillet fillet on th...