Custom Tube adapter STL file ⌀ 77–31 mm (Length: 120 mm) 📦#7703

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Tube reducer ⌀77 mm to ⌀31 mm in STL format. Length of this connector is 120 mm. The larger-diameter tube has a thickness of 2.3 mm and a sleeve length of 80 mm. The smaller-diameter tube has a thickness of 2.4 mm and a length of 30 mm. The ends are raw.
Generation date: 2026-03-09
3D Model Tube adapter STL file ⌀ 77–31 mm (Length: 120 mm)

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  • inline-tube-adapter-lenA80mm-d_model7703-nb0_dd{id}.stl : 6.6 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 80 mm (≃3.15 in)
#2 side A outer diameter 77 mm (≃3.03 in)
#3 side A thickness 2.3 mm (≃0.09 in)
#4 side B length 30 mm (≃1 3/16 in)
#5 side B outer diameter 31 mm (≃1.22 in)
#6 side B thickness 2.4 mm (≃0.09 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) 72.4 mm (≃2.85 in)
inner diameter (side B) 26.2 mm (≃1.03 in)
total length 120 mm (≃4.72 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 

Tubing adapter STL 3D file ⌀ 62–32 mm (Length: 124 mm) (📦 #6512)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 62–32 mm (Length: 124 mm)
Straight tube adapter ⌀62 mm to ⌀32 mm in STL 3D format. Total length of this junction is 124 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 64 mm, the smaller one of 40 mm. The ends have no fillet.
Parameter Value Unit
side A length 64 mm
side A outer diameter 62 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 32 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 62–50 mm (Length: 95 mm) (📦 #7925)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 62–50 mm (Length: 95 mm)
Straight tube reducer ⌀62 mm to ⌀50 mm in STL 3D format. Final length of this fitting is 95 mm. The larger-diameter tube has a thickness of 2.9 mm and a sleeve length of 60 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm. The two axes of the tubes are offset by 0.1 mm. The ends are raw.
Parameter Value Unit
side A length 60 mm
side A outer diameter 62 mm
side A thickness 2.9 mm
side B length 20 mm
side B outer diameter 50 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0.1 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 77–31 mm (Length: 150 mm) (📦 #7704)

1 object(s) - format STL
Tubing adapter STL file ⌀ 77–31 mm (Length: 150 mm)
Inline tube coupler ⌀77 mm to ⌀31 mm in STL format. Length of this sleeve is 150 mm. The larger-diameter tube has a thickness of 2.3 mm and a length of 110 mm. The smaller-diameter tube has a thickness of 2.4 mm and a length of 30 mm. The ends have no fillet.
Parameter Value Unit
side A length 110 mm
side A outer diameter 77 mm
side A thickness 2.3 mm
side B length 30 mm
side B outer diameter 31 mm
side B thickness 2.4 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 77–31 mm (Length: 110 mm) (📦 #7686)

1 object(s) - format STL
Tubing adapter STL file ⌀ 77–31 mm (Length: 110 mm)
Straight tube connector ⌀77 mm to ⌀31 mm in STL 3D format. Total length of this connector is 110 mm. The larger-diameter tube has a thickness of 2.3 mm and a length of 60 mm. The smaller-diameter tube has a thickness of 2.4 mm and a length of 20 mm. The ends are not rounded.
Parameter Value Unit
side A length 60 mm
side A outer diameter 77 mm
side A thickness 2.3 mm
side B length 20 mm
side B outer diameter 31 mm
side B thickness 2.4 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 77–30 mm (Length: 110 mm) (📦 #7683)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 77–30 mm (Length: 110 mm)
Inline tube adapter ⌀77 mm to ⌀30 mm in STL format. Length of this connector is 110 mm. The larger-diameter tube has a thickness of 2.4 mm and a length of 60 mm. The smaller-diameter tube has a thickness of 2.5 mm and a length of 20 mm. The ends are raw.
Parameter Value Unit
side A length 60 mm
side A outer diameter 77 mm
side A thickness 2.4 mm
side B length 20 mm
side B outer diameter 30 mm
side B thickness 2.5 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 54–53 mm (Length: 85 mm) (📦 #4062)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 54–53 mm (Length: 85 mm)
Inline tube junction ⌀54 mm to ⌀53 mm in STL 3D format. Length of this sleeve is 85 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 54 mm, the smaller one of 26 mm. The ends are raw.
Parameter Value Unit
side A length 54 mm
side A outer diameter 54 mm
side A thickness 2 mm
side B length 26 mm
side B outer diameter 53 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 60–23 mm (Length: 74 mm) (📦 #3340)

1 object(s) - format STL
Tube adapter STL file ⌀ 60–23 mm (Length: 74 mm)
Straight sleeve ⌀60 mm to ⌀23 mm in STL 3D format. Final length of this coupler is 74 mm. The larger-diameter tube has a thickness of 2.2 mm and a sleeve length of 50 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 18 mm. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 60 mm
side A thickness 2.2 mm
side B length 18 mm
side B outer diameter 23 mm
side B thickness 2 mm
transition length 6 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 48–40 mm (Length: 90 mm) (📦 #8140)

1 object(s) - format STL
Tube adapter STL file ⌀ 48–40 mm (Length: 90 mm)
Tube coupler ⌀48 mm to ⌀40 mm in STL 3D format. Final length of this adapter is 90 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 30 mm. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 48 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 40 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 48–41 mm (Length: 90 mm) (📦 #8137)

1 object(s) - format STL
Tubing adapter STL file ⌀ 48–41 mm (Length: 90 mm)
Inline fitting ⌀48 mm to ⌀41 mm in STL format. Final length of this adapter is 90 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 30 mm. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 48 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 41 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 47–41 mm (Length: 90 mm) (📦 #8139)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 47–41 mm (Length: 90 mm)
Tubing reducer ⌀47 mm to ⌀41 mm in STL 3D format. Final length of this junction is 90 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 30 mm. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 47 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 41 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 80–46 mm (Length: 160 mm) (📦 #3941)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 80–46 mm (Length: 160 mm)
Inline sleeve ⌀80 mm to ⌀46 mm in STL 3D format. Length of this fitting is 160 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 80 mm, the smaller one of 60 mm. The ends have no fillet.
Parameter Value Unit
side A length 80 mm
side A outer diameter 80 mm
side A thickness 3 mm
side B length 60 mm
side B outer diameter 46 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 46–40 mm (Length: 91 mm) (📦 #8135)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 46–40 mm (Length: 91 mm)
Inline tube coupler ⌀46 mm to ⌀40 mm in STL 3D format. Total length of this coupler is 91 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 30 mm. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 46 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 40 mm
side B thickness 2 mm
transition length 11 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 47–42 mm (Length: 90 mm) (📦 #8138)

1 object(s) - format STL
Tubing adapter STL file ⌀ 47–42 mm (Length: 90 mm)
Tube junction ⌀47 mm to ⌀42 mm in STL 3D format. Length of this coupler is 90 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 30 mm. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 47 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 42 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 46–44 mm (Length: 95 mm) (📦 #8119)

1 object(s) - format STL
Tubing adapter STL file ⌀ 46–44 mm (Length: 95 mm)
Straight sleeve ⌀46 mm to ⌀44 mm in STL format. Total length of this junction is 95 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 30 mm. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 46 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 44 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 44–29 mm (Length: 140 mm) (📦 #7729)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 44–29 mm (Length: 140 mm)
Tube reducer ⌀44 mm to ⌀29 mm in STL format. Length of this coupler is 140 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 110 mm, the smaller one of 20 mm. The ends are not rounded.
Parameter Value Unit
side A length 110 mm
side A outer diameter 44 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 29 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 64–32 mm (Length: 166 mm) (📦 #2979)

1 object(s) - format STL
Tube adapter STL file ⌀ 64–32 mm (Length: 166 mm)
Inline tubing adapter ⌀64 mm to ⌀32 mm in STL 3D format. Total length of this junction is 166 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 80 mm, the smaller one of 60 mm. The ends are raw.
Parameter Value Unit
side A length 80 mm
side A outer diameter 64 mm
side A thickness 3 mm
side B length 60 mm
side B outer diameter 32 mm
side B thickness 3 mm
transition length 26 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 60–30 mm (Length: 140 mm) (📦 #4786)

1 object(s) - format STL
Tubing adapter STL file ⌀ 60–30 mm (Length: 140 mm)
Tube reducer ⌀60 mm to ⌀30 mm in STL 3D format. Total length of this coupler is 140 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 60 mm, the smaller one of 60 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 60 mm
side A outer diameter 60 mm
side A thickness 2.5 mm
side B length 60 mm
side B outer diameter 30 mm
side B thickness 2.5 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 50–20 mm (Length: 80 mm) (📦 #8580)

1 object(s) - format STL
Tubing adapter STL file ⌀ 50–20 mm (Length: 80 mm)
Inline tube coupler ⌀50 mm to ⌀20 mm in STL 3D format. Length of this junction is 80 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 20 mm. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 50 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 20 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 39–36 mm (Length: 100 mm) (📦 #7761)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 39–36 mm (Length: 100 mm)
Straight tubing adapter ⌀39 mm to ⌀36 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 50 mm, the smaller one of 40 mm. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 39 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 36 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 63–43 mm (Length: 120 mm) (📦 #5796)

1 object(s) - format STL
Tubing adapter STL file ⌀ 63–43 mm (Length: 120 mm)
Inline tube junction ⌀63 mm to ⌀43 mm in STL 3D format. Length of this junction is 120 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 50 mm as well. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 63 mm
side A thickness 2.5 mm
side B length 50 mm
side B outer diameter 43 mm
side B thickness 2.5 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 100–30 mm (Length: 120 mm) (📦 #8594)

1 object(s) - format STL
Tubing adapter STL file ⌀ 100–30 mm (Length: 120 mm)
Inline fitting ⌀100 mm to ⌀30 mm in STL 3D format. Length of this coupler is 120 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 40 mm. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 100 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 30 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 44–40 mm (Length: 110 mm) (📦 #8091)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 44–40 mm (Length: 110 mm)
Tubing adapter ⌀44 mm to ⌀40 mm in STL format. Final length of this junction is 110 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 44 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 40 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 56–50 mm (Length: 120 mm) (📦 #1493)

1 object(s) - format STL (5.0/5) 1 vote(s)
Tube adapter STL 3D file ⌀ 56–50 mm (Length: 120 mm)
Inline fitting ⌀56 mm to ⌀50 mm in STL format. Length of this adapter is 120 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 56 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 50 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 43–31 mm (Length: 120 mm) (📦 #2849)

1 object(s) - format STL
Tube adapter STL file ⌀ 43–31 mm (Length: 120 mm)
Tube adapter ⌀43 mm to ⌀31 mm in STL format. Final length of this coupler is 120 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 43 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 31 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet