Custom Tube adapter STL 3D file ⌀ 81–57 mm (Length: 45 mm) 📦#6941

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Straight sleeve ⌀81 mm to ⌀57 mm in STL 3D format. Final length of this reducer is 45 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 20 mm. The ends are raw.
Generation date: 2026-01-30
3D Model Tube adapter STL 3D file ⌀ 81–57 mm (Length: 45 mm)

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  • inline-tube-adapter-lenA15mm-d_model6941-nb0_dd{id}.stl : 7 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 15 mm (≃0.59 in)
#2 side A outer diameter 81 mm (≃3 3/16 in)
#3 side A thickness 3 mm (≃1/8 in)
#4 side B length 20 mm (≃0.79 in)
#5 side B outer diameter 57 mm (≃2 1/4 in)
#6 side B thickness 3 mm (≃1/8 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) 75 mm (≃2 15/16 in)
inner diameter (side B) 51 mm (≃2 in)
total length 45 mm (≃1.77 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 ⌀ 81–58 mm (Length: 49 mm) (📦 #6944)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 81–58 mm (Length: 49 mm)
Inline tube reducer ⌀81 mm to ⌀58 mm in STL 3D format. Total length of this reducer is 49 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 24 mm. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 81 mm
side A thickness 3 mm
side B length 24 mm
side B outer diameter 58 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 82–56 mm (Length: 50 mm) (📦 #6940)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 82–56 mm (Length: 50 mm)
Inline tubing adapter ⌀82 mm to ⌀56 mm in STL format. Total length of this sleeve is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 82 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 56 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 85–60 mm (Length: 45 mm) (📦 #1165)

1 object(s) - format STL
Tube adapter STL file ⌀ 85–60 mm (Length: 45 mm)
Tube coupler ⌀85 mm to ⌀60 mm in STL format. Final length of this connector is 45 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 85 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 60 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 65–63 mm (Length: 45 mm) (📦 #6060)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 65–63 mm (Length: 45 mm)
Tube coupler ⌀65 mm to ⌀63 mm in STL 3D format. Final length of this sleeve is 45 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 65 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 63 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 60–48 mm (Length: 45 mm) (📦 #1973)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 60–48 mm (Length: 45 mm)
Inline tube adapter ⌀60 mm to ⌀48 mm in STL format. Final length of this sleeve is 45 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 20 mm. The ends are not rounded.
Parameter Value Unit
side A length 10 mm
side A outer diameter 60 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 48 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 68–46 mm (Length: 55 mm) (📦 #4884)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 68–46 mm (Length: 55 mm)
Inline tube reducer ⌀68 mm to ⌀46 mm in STL 3D format. Total length of this sleeve is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 20 mm. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 68 mm
side A thickness 3 mm
side B length 20 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 ⌀ 90–46 mm (Length: 50 mm) (📦 #3889)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 90–46 mm (Length: 50 mm)
Inline tubing adapter ⌀90 mm to ⌀46 mm in STL format. Total length of this junction is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 10 mm, the smaller one of 20 mm. The ends have no fillet.
Parameter Value Unit
side A length 10 mm
side A outer diameter 90 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 46 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 67–42 mm (Length: 53 mm) (📦 #8707)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 67–42 mm (Length: 53 mm)
Diameter adapter ⌀67 mm to ⌀42 mm in STL 3D format. Length of this fitting is 53 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 23 mm, the smaller one of 20 mm. The ends have no fillet.
Parameter Value Unit
side A length 23 mm
side A outer diameter 67 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 42 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 61–58 mm (Length: 60 mm) (📦 #4709)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 61–58 mm (Length: 60 mm)
Inline tubing adapter ⌀61 mm to ⌀58 mm in STL 3D format. Length of this adapter 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 25 mm as well. The ends are raw.
Parameter Value Unit
side A length 25 mm
side A outer diameter 61 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 58 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 68–46 mm (Length: 50 mm) (📦 #9016)

1 object(s) - format STL
Tube adapter STL file ⌀ 68–46 mm (Length: 50 mm)
Tubing reducer ⌀68 mm to ⌀46 mm in STL format. Total length of this connector is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 15 mm as well. The ends are raw.
Parameter Value Unit
side A length 15 mm
side A outer diameter 68 mm
side A thickness 3 mm
side B length 15 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 file ⌀ 67–39 mm (Length: 48 mm) (📦 #4866)

1 object(s) - format STL
Tubing adapter STL file ⌀ 67–39 mm (Length: 48 mm)
Inline tube adapter ⌀67 mm to ⌀39 mm in STL 3D format. Length of this fitting is 48 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 13 mm, the smaller one of 20 mm. The ends have no fillet.
Parameter Value Unit
side A length 13 mm
side A outer diameter 67 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 39 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 74–63 mm (Length: 20 mm) (📦 #9784)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 74–63 mm (Length: 20 mm)
Tube adapter ⌀74 mm to ⌀63 mm in STL format. Total length of this adapter is 20 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 5 mm, the smaller one of 10 mm. The ends have no fillet.
Parameter Value Unit
side A length 5 mm
side A outer diameter 74 mm
side A thickness 3 mm
side B length 10 mm
side B outer diameter 63 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 57–46 mm (Length: 35 mm) (📦 #9300)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 57–46 mm (Length: 35 mm)
Tube reducer ⌀57 mm to ⌀46 mm in STL format. Total length of this sleeve is 35 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 15 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 57 mm
side A thickness 3 mm
side B length 15 mm
side B outer diameter 46 mm
side B thickness 3 mm
transition length 5 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 file ⌀ 68–41 mm (Length: 50 mm) (📦 #9020)

1 object(s) - format STL
Tube adapter STL file ⌀ 68–41 mm (Length: 50 mm)
Straight tubing adapter ⌀68 mm to ⌀41 mm in STL format. Final length of this reducer is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 15 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 68 mm
side A thickness 3 mm
side B length 15 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 ⌀ 98–56 mm (Length: 70 mm) (📦 #3102)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 98–56 mm (Length: 70 mm)
Tube coupler ⌀98 mm to ⌀56 mm in STL 3D format. Length of this reducer is 70 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 are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 98 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 56 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

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 file ⌀ 88–82 mm (Length: 55 mm) (📦 #9800)

1 object(s) - format STL
Tube adapter STL file ⌀ 88–82 mm (Length: 55 mm)
Inline tube reducer ⌀88 mm to ⌀82 mm in STL 3D format. Final length of this coupler is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 20 mm
side A outer diameter 88 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 82 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 70–63 mm (Length: 70 mm) (📦 #6989)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 70–63 mm (Length: 70 mm)
Straight tube connector ⌀70 mm to ⌀63 mm in STL format. Total length of this sleeve is 70 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 70 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 63 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 69–63 mm (Length: 70 mm) (📦 #6923)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 69–63 mm (Length: 70 mm)
Inline sleeve ⌀69 mm to ⌀63 mm in STL format. Length of this sleeve is 70 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 69 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 63 mm
side B thickness 3 mm
transition length 10 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

Tubing adapter STL file ⌀ 87–83 mm (Length: 55 mm) (📦 #9799)

1 object(s) - format STL
Tubing adapter STL file ⌀ 87–83 mm (Length: 55 mm)
Inline sleeve ⌀87 mm to ⌀83 mm in STL 3D format. Total length of this connector is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 87 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 83 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 53–40 mm (Length: 35 mm) (📦 #9270)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 53–40 mm (Length: 35 mm)
Tube adapter ⌀53 mm to ⌀40 mm in STL 3D format. Final length of this sleeve is 35 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 15 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 53 mm
side A thickness 3 mm
side B length 15 mm
side B outer diameter 40 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 65–63 mm (Length: 70 mm) (📦 #4286)

1 object(s) - format STL
Tubing adapter STL file ⌀ 65–63 mm (Length: 70 mm)
Tubing reducer ⌀65 mm to ⌀63 mm in STL 3D format. Final length of this reducer is 70 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 65 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 63 mm
side B thickness 3 mm
transition length 10 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 3D file ⌀ 63–62 mm (Length: 70 mm) (📦 #4303)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 63–62 mm (Length: 70 mm)
Inline tube junction ⌀63 mm to ⌀62 mm in STL 3D format. Total length of this connector 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 raw.
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 62 mm
side B thickness 3 mm
transition length 10 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 3D file ⌀ 63–59 mm (Length: 65 mm) (📦 #9921)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 63–59 mm (Length: 65 mm)
Straight tube coupler ⌀63 mm to ⌀59 mm in STL 3D format. Length of this fitting is 65 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 63 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 59 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet