Custom Tube adapter STL 3D file ⌀ 66–44 mm (Length: 85 mm) 📦#2625

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Straight tube reducer ⌀66 mm to ⌀44 mm in STL 3D format. Final length of this connector is 85 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 4 mm and a length of 30 mm as well. The ends are raw.
Generation date: 2025-10-20
3D Model Tube adapter STL 3D file ⌀ 66–44 mm (Length: 85 mm)

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  • inline-tube-adapter-lenA30mm-d_model2625-nb0_dd{id}.stl : 3.5 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 30 mm (≃1 3/16 in)
#2 side A outer diameter 66 mm (≃2.60 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 44 mm (≃1.73 in)
#6 side B thickness 4 mm (≃0.16 in)
#7 transition length 25 mm (≃0.98 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 62 mm (≃2 7/16 in)
inner diameter (side B) 36 mm (≃1.42 in)
total length 85 mm (≃3.35 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 

Tube adapter STL 3D file ⌀ 68–53 mm (Length: 65 mm) (📦 #1232)

1 object(s) - format STL (4.0/5) 1 vote(s)
Tube adapter STL 3D file ⌀ 68–53 mm (Length: 65 mm)
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 adapter STL file ⌀ 60–47 mm (Length: 80 mm) (📦 #2556)

1 object(s) - format STL
Tube adapter STL file ⌀ 60–47 mm (Length: 80 mm)
Straight tube reducer ⌀60 mm to ⌀47 mm in STL format. Length of this reducer 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 axes of the tubes are offset by 0.1 mm. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 60 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 47 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0.1 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 57–46 mm (Length: 90 mm) (📦 #8784)

1 object(s) - format STL
Tubing adapter STL file ⌀ 57–46 mm (Length: 90 mm)
Straight tube coupler ⌀57 mm to ⌀46 mm in STL 3D format. Length of this fitting is 90 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 ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 57 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 46 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 69–51 mm (Length: 90 mm) (📦 #8686)

1 object(s) - format STL
Tube adapter STL file ⌀ 69–51 mm (Length: 90 mm)
Inline sleeve ⌀69 mm to ⌀51 mm in STL format. Final length of this junction is 90 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 ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 69 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 51 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 76–50 mm (Length: 80 mm) (📦 #1439)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 76–50 mm (Length: 80 mm)
Straight sleeve ⌀76 mm to ⌀50 mm in STL 3D format. Total length of this sleeve 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 ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 76 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 50 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 75–51 mm (Length: 90 mm) (📦 #8819)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 75–51 mm (Length: 90 mm)
Inline tube reducer ⌀75 mm to ⌀51 mm in STL format. Total length of this reducer is 90 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 ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 75 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 51 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 58–48 mm (Length: 75 mm) (📦 #5424)

1 object(s) - format STL
Tubing adapter STL file ⌀ 58–48 mm (Length: 75 mm)
Inline tube junction ⌀58 mm to ⌀48 mm in STL 3D format. Total length of this fitting is 75 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 25 mm. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 58 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 48 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 80–50 mm (Length: 80 mm) (📦 #1163)

1 object(s) - format STL (5.0/5) 1 vote(s)
Tube adapter STL 3D file ⌀ 80–50 mm (Length: 80 mm)
Tube coupler ⌀80 mm to ⌀50 mm in STL format. Final length of this adapter 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 ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 80 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 50 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 57–41 mm (Length: 70 mm) (📦 #5429)

1 object(s) - format STL
Tube adapter STL file ⌀ 57–41 mm (Length: 70 mm)
Straight tube adapter ⌀57 mm to ⌀41 mm in STL format. Length of this fitting is 70 mm. The thickness of the tubes is identical: 3 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 57 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 41 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 68–45 mm (Length: 75 mm) (📦 #3463)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 68–45 mm (Length: 75 mm)
Straight tube fitting ⌀68 mm to ⌀45 mm in STL format. Length of this fitting is 75 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 30 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 68 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 45 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 60–45 mm (Length: 75 mm) (📦 #1234)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 60–45 mm (Length: 75 mm)
Diameter adapter ⌀60 mm to ⌀45 mm in STL format. Final length of this sleeve is 75 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 30 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 60 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 45 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 46–41 mm (Length: 90 mm) (📦 #1920)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 46–41 mm (Length: 90 mm)
Tube junction ⌀46 mm to ⌀41 mm in STL 3D format. 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 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 46 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 41 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 83–53 mm (Length: 80 mm) (📦 #7159)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 83–53 mm (Length: 80 mm)
Inline sleeve ⌀83 mm to ⌀53 mm in STL 3D format. Length of this adapter 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 ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 83 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 53 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 46–38 mm (Length: 80 mm) (📦 #5044)

1 object(s) - format STL
Tubing adapter STL file ⌀ 46–38 mm (Length: 80 mm)
Inline fitting ⌀46 mm to ⌀38 mm in STL 3D format. Final 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 ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 46 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 38 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 80–50 mm (Length: 80 mm) (📦 #1575)

1 object(s) - format STL (5.0/5) 1 vote(s)
Tube adapter STL file ⌀ 80–50 mm (Length: 80 mm)
Tube reducer ⌀80 mm to ⌀50 mm in STL 3D format. Final length of this coupler is 80 mm. The thickness of the tubes is identical: 2.5 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 80 mm
side A thickness 2.5 mm
side B length 30 mm
side B outer diameter 50 mm
side B thickness 2.5 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 80–30 mm (Length: 80 mm) (📦 #1587)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 80–30 mm (Length: 80 mm)
Diameter adapter ⌀80 mm to ⌀30 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 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 80 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 30 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 63–50 mm (Length: 63 mm) (📦 #5002)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 63–50 mm (Length: 63 mm)
Diameter adapter ⌀63 mm to ⌀50 mm in STL format. Total length of this coupler is 63 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 18 mm. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 63 mm
side A thickness 3 mm
side B length 18 mm
side B outer diameter 50 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 63–58 mm (Length: 75 mm) (📦 #6791)

1 object(s) - format STL
Tubing adapter STL file ⌀ 63–58 mm (Length: 75 mm)
Tube fitting ⌀63 mm to ⌀58 mm in STL 3D format. Length of this coupler is 75 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 30 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 63 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 58 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 72–61 mm (Length: 80 mm) (📦 #8222)

1 object(s) - format STL
Tube adapter STL file ⌀ 72–61 mm (Length: 80 mm)
Tubing adapter ⌀72 mm to ⌀61 mm in STL 3D format. Final length of this sleeve is 80 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 have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 72 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 61 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 85–46 mm (Length: 52 mm) (📦 #8914)

1 object(s) - format STL
Tube adapter STL file ⌀ 85–46 mm (Length: 52 mm)
Straight tubing adapter ⌀85 mm to ⌀46 mm in STL 3D format. Total length of this sleeve is 52 mm. The larger-diameter tube has a thickness of 2.3 mm and a length of 22 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 15 mm. The ends are raw.
Parameter Value Unit
side A length 22 mm
side A outer diameter 85 mm
side A thickness 2.3 mm
side B length 15 mm
side B outer diameter 46 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 75–60 mm (Length: 75 mm) (📦 #2754)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 75–60 mm (Length: 75 mm)
Straight tube coupler ⌀75 mm to ⌀60 mm in STL 3D format. Length of this sleeve is 75 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 ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 75 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 60 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 68–54 mm (Length: 85 mm) (📦 #3462)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 68–54 mm (Length: 85 mm)
Tube reducer ⌀68 mm to ⌀54 mm in STL format. Total length of this adapter is 85 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 40 mm, the smaller one of 30 mm. The ends have no fillet.
Parameter Value Unit
side A length 40 mm
side A outer diameter 68 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 54 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 38–37 mm (Length: 80 mm) (📦 #7705)

1 object(s) - format STL
Tubing adapter STL file ⌀ 38–37 mm (Length: 80 mm)
Inline tube coupler ⌀38 mm to ⌀37 mm in STL 3D format. Final 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 ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 38 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 37 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 40–32 mm (Length: 80 mm) (📦 #5043)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 40–32 mm (Length: 80 mm)
Inline tube junction ⌀40 mm to ⌀32 mm in STL format. Final length of this fitting is 80 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 30 mm as well. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 40 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 32 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 80–65 mm (Length: 80 mm) (📦 #8587)

1 object(s) - format STL
Tube adapter STL file ⌀ 80–65 mm (Length: 80 mm)
Tube coupler ⌀80 mm to ⌀65 mm in STL format. Total length of this reducer 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 ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 80 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 65 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 79–40 mm (Length: 60 mm) (📦 #9009)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 79–40 mm (Length: 60 mm)
Tube reducer ⌀79 mm to ⌀40 mm in STL format. Length of this sleeve is 60 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 15 mm. The ends are raw.
Parameter Value Unit
side A length 25 mm
side A outer diameter 79 mm
side A thickness 3 mm
side B length 15 mm
side B outer diameter 40 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 63–56 mm (Length: 70 mm) (📦 #4307)

1 object(s) - format STL
Tube adapter STL file ⌀ 63–56 mm (Length: 70 mm)
Tube reducer ⌀63 mm to ⌀56 mm in STL format. Final length of this coupler is 70 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 30 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 63 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 56 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 81–66 mm (Length: 90 mm) (📦 #8236)

1 object(s) - format STL
Tubing adapter STL file ⌀ 81–66 mm (Length: 90 mm)
Inline tube junction ⌀81 mm to ⌀66 mm in STL 3D format. Total length of this adapter is 90 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 30 mm as well. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 81 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 66 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 42–30 mm (Length: 90 mm) (📦 #6474)

1 object(s) - format STL
Tube adapter STL file ⌀ 42–30 mm (Length: 90 mm)
Tube connector ⌀42 mm to ⌀30 mm in STL format. Final length of this reducer 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 35 mm. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 42 mm
side A thickness 3 mm
side B length 35 mm
side B outer diameter 30 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet