Custom Tube adapter STL file ⌀ 66–34 mm (Length: 70 mm) 📦#8355

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Straight tube fitting ⌀66 mm to ⌀34 mm in STL 3D format. Total length of this sleeve is 70 mm. The larger-diameter tube has a thickness of 10 mm and a sleeve length of 30 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 30 mm as well. The ends are not rounded.
Generation date: 2026-04-09
3D Model Tube adapter STL file ⌀ 66–34 mm (Length: 70 mm)

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  • inline-tube-adapter-lenA30mm-d_model8355-nb0_dd{id}.stl : 4.9 Mo
STL Mesh quality : Linear deflection 0.05 Angular deflection 0.05
No compliance warranty No compliance warranty
(attribution - commercial use allowed)
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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 10 mm (≃0.39 in)
#4 side B length 30 mm (≃1 3/16 in)
#5 side B outer diameter 34 mm (≃1.34 in)
#6 side B thickness 2 mm (≃0.08 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) 46 mm (≃1 13/16 in)
inner diameter (side B) 30 mm (≃1 3/16 in)
total length 70 mm (≃2 3/4 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 ⌀ 90–16 mm (Length: 60 mm) (📦 #7445)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 90–16 mm (Length: 60 mm)
Inline tubing adapter ⌀90 mm to ⌀16 mm in STL 3D format. Total length of this sleeve is 60 mm. The larger-diameter tube has a thickness of 10 mm and a length of 20 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 25 mm. The ends are not rounded.
Parameter Value Unit
side A length 20 mm
side A outer diameter 90 mm
side A thickness 10 mm
side B length 25 mm
side B outer diameter 16 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 58–42 mm (Length: 130 mm) (📦 #6986)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 58–42 mm (Length: 130 mm)
Tube connector ⌀58 mm to ⌀42 mm in STL 3D format. Final length of this connector is 130 mm. The larger-diameter tube has a thickness of 9 mm and a sleeve length of 50 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 50 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 58 mm
side A thickness 9 mm
side B length 50 mm
side B outer diameter 42 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 32–17 mm (Length: 70 mm) (📦 #9496)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 32–17 mm (Length: 70 mm)
Tubing reducer ⌀32 mm to ⌀17 mm in STL 3D format. Final length of this junction is 70 mm. The larger-diameter tube has a thickness of 5 mm and a sleeve length of 25 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 30 mm. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 32 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 17 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 14–6 mm (Length: 50 mm) (📦 #9286)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 14–6 mm (Length: 50 mm)
Tubing adapter ⌀14 mm to ⌀6 mm in STL 3D format. Final length of this fitting is 50 mm. The larger-diameter tube has a thickness of 5 mm and a length of 20 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm as well. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 14 mm
side A thickness 5 mm
side B length 20 mm
side B outer diameter 6 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 32–29 mm (Length: 65 mm) (📦 #8233)

1 object(s) - format STL
Tubing adapter STL file ⌀ 32–29 mm (Length: 65 mm)
Inline tube junction ⌀32 mm to ⌀29 mm in STL 3D format. Length of this adapter is 65 mm. The larger-diameter tube has a thickness of 5 mm and a sleeve length of 35 mm. The smaller-diameter tube has a thickness of 4 mm and a length of 10 mm. The ends have no fillet.
Parameter Value Unit
side A length 35 mm
side A outer diameter 32 mm
side A thickness 5 mm
side B length 10 mm
side B outer diameter 29 mm
side B thickness 4 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 32–17 mm (Length: 123 mm) (📦 #9494)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 32–17 mm (Length: 123 mm)
Straight tube connector ⌀32 mm to ⌀17 mm in STL format. Total length of this reducer is 123 mm. The larger-diameter tube has a thickness of 5 mm and a length of 55 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 53 mm. The ends are not rounded.
Parameter Value Unit
side A length 55 mm
side A outer diameter 32 mm
side A thickness 5 mm
side B length 53 mm
side B outer diameter 17 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 200–90 mm (Length: 65 mm) (📦 #7341)

1 object(s) - format STL
Tubing adapter STL file ⌀ 200–90 mm (Length: 65 mm)
Tube adapter ⌀200 mm to ⌀90 mm in STL 3D format. Length of this reducer is 65 mm. The larger-diameter tube has a thickness of 8 mm and a 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.
Parameter Value Unit
side A length 30 mm
side A outer diameter 200 mm
side A thickness 8 mm
side B length 30 mm
side B outer diameter 90 mm
side B thickness 4 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 13–6 mm (Length: 30 mm) (📦 #9291)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 13–6 mm (Length: 30 mm)
Straight tube fitting ⌀13 mm to ⌀6 mm in STL 3D format. Final length of this connector is 30 mm. The larger-diameter tube has a thickness of 5 mm and a length of 10 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 10 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 10 mm
side A outer diameter 13 mm
side A thickness 5 mm
side B length 10 mm
side B outer diameter 6 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 80–59 mm (Length: 70 mm) (📦 #9592)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 80–59 mm (Length: 70 mm)
Straight tube coupler ⌀80 mm to ⌀59 mm in STL 3D format. Total length of this reducer is 70 mm. The larger-diameter tube has a thickness of 5 mm and a length of 20 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 10 mm. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 80 mm
side A thickness 5 mm
side B length 10 mm
side B outer diameter 59 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 19–9 mm (Length: 45 mm) (📦 #4915)

1 object(s) - format STL
Tubing adapter STL file ⌀ 19–9 mm (Length: 45 mm)
Inline tube junction ⌀19 mm to ⌀9 mm in STL format. Length of this reducer is 45 mm. The larger-diameter tube has a thickness of 5 mm and a sleeve length of 20 mm. The smaller-diameter tube has a thickness of 4 mm and a length of 15 mm. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 19 mm
side A thickness 5 mm
side B length 15 mm
side B outer diameter 9 mm
side B thickness 4 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 80–40 mm (Length: 80 mm) (📦 #4711)

1 object(s) - format STL
Tubing adapter STL file ⌀ 80–40 mm (Length: 80 mm)
Tube connector ⌀80 mm to ⌀40 mm in STL format. Length of this adapter is 80 mm. The thickness of the tubes is identical: 5 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 80 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 40 mm
side B thickness 5 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 55–40 mm (Length: 65 mm) (📦 #8397)

1 object(s) - format STL
Tube adapter STL file ⌀ 55–40 mm (Length: 65 mm)
Tube coupler ⌀55 mm to ⌀40 mm in STL 3D format. Total length of this junction is 65 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 40 mm. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 55 mm
side A thickness 5 mm
side B length 40 mm
side B outer diameter 40 mm
side B thickness 5 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 42–29 mm (Length: 85 mm) (📦 #8231)

1 object(s) - format STL
Tubing adapter STL file ⌀ 42–29 mm (Length: 85 mm)
Diameter adapter ⌀42 mm to ⌀29 mm in STL 3D format. Total length of this junction is 85 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 35 mm, the smaller one of 30 mm. The ends have no fillet.
Parameter Value Unit
side A length 35 mm
side A outer diameter 42 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 29 mm
side B thickness 5 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 70–49 mm (Length: 110 mm) (📦 #4299)

1 object(s) - format STL
Tubing adapter STL file ⌀ 70–49 mm (Length: 110 mm)
Tube junction ⌀70 mm to ⌀49 mm in STL 3D format. Final length of this adapter is 110 mm. The larger-diameter tube has a thickness of 5 mm and a sleeve length of 50 mm. The smaller-diameter tube has a thickness of 4 mm and a length of 40 mm. The ends are rounded on the outside to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 50 mm
side A outer diameter 70 mm
side A thickness 5 mm
side B length 40 mm
side B outer diameter 49 mm
side B thickness 4 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL 3D file ⌀ 32–24 mm (Length: 78 mm) (📦 #9337)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 32–24 mm (Length: 78 mm)
Straight tube connector ⌀32 mm to ⌀24 mm in STL format. Final length of this connector is 78 mm. The thickness of the tubes is identical: 5 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 32 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 24 mm
side B thickness 5 mm
transition length 18 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 50–45 mm (Length: 90 mm) (📦 #1918)

1 object(s) - format STL
Tube adapter STL file ⌀ 50–45 mm (Length: 90 mm)
Straight tube coupler ⌀50 mm to ⌀45 mm in STL 3D format. Length of this adapter is 90 mm. The thickness of the tubes is identical: 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 50 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 45 mm
side B thickness 5 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 123–58 mm (Length: 85 mm) (📦 #2027)

1 object(s) - format STL
Tube adapter STL file ⌀ 123–58 mm (Length: 85 mm)
Tube fitting ⌀123 mm to ⌀58 mm in STL format. Length of this sleeve is 85 mm. The larger-diameter tube has a thickness of 5 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 123 mm
side A thickness 5 mm
side B length 25 mm
side B outer diameter 58 mm
side B thickness 4 mm
transition length 35 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 50–40 mm (Length: 108 mm) (📦 #2978)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 50–40 mm (Length: 108 mm)
Straight tube reducer ⌀50 mm to ⌀40 mm in STL 3D format. Total length of this coupler is 108 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 60 mm. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 50 mm
side A thickness 5 mm
side B length 60 mm
side B outer diameter 40 mm
side B thickness 5 mm
transition length 18 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 64–49 mm (Length: 65 mm) (📦 #1230)

1 object(s) - format STL
Tube adapter STL file ⌀ 64–49 mm (Length: 65 mm)
Tube reducer ⌀64 mm to ⌀49 mm in STL format. Length of this coupler is 65 mm. The larger-diameter tube has a thickness of 4 mm and a length of 25 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 25 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 64 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 49 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 40–37 mm (Length: 118 mm) (📦 #4474)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 40–37 mm (Length: 118 mm)
Diameter adapter ⌀40 mm to ⌀37 mm in STL 3D format. Length of this fitting is 118 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 38 mm, the smaller one of 40 mm. The ends have no fillet.
Parameter Value Unit
side A length 38 mm
side A outer diameter 40 mm
side A thickness 5 mm
side B length 40 mm
side B outer diameter 37 mm
side B thickness 5 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 48–32 mm (Length: 75 mm) (📦 #9506)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 48–32 mm (Length: 75 mm)
Tube fitting ⌀48 mm to ⌀32 mm in STL format. Length of this fitting is 75 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 25 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 30 mm. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 48 mm
side A thickness 4 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

Tubing adapter STL file ⌀ 110–100 mm (Length: 110 mm) (📦 #6019)

1 object(s) - format STL
Tubing adapter STL file ⌀ 110–100 mm (Length: 110 mm)
Inline tube junction ⌀110 mm to ⌀100 mm in STL 3D format. Final length of this reducer is 110 mm. The larger-diameter tube has a thickness of 6 mm and a sleeve length of 35 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 35 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 35 mm
side A outer diameter 110 mm
side A thickness 6 mm
side B length 35 mm
side B outer diameter 100 mm
side B thickness 5 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 67–36 mm (Length: 27 mm) (📦 #8360)

1 object(s) - format STL
Tubing adapter STL file ⌀ 67–36 mm (Length: 27 mm)
Straight tube coupler ⌀67 mm to ⌀36 mm in STL 3D format. Length of this adapter is 27 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 11 mm, the smaller one of 11 mm as well. The ends have a fillet on the outside.
Parameter Value Unit
side A length 11 mm
side A outer diameter 67 mm
side A thickness 5 mm
side B length 11 mm
side B outer diameter 36 mm
side B thickness 5 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL file ⌀ 100–75 mm (Length: 60 mm) (📦 #3527)

1 object(s) - format STL
Tubing adapter STL file ⌀ 100–75 mm (Length: 60 mm)
Straight tube connector ⌀100 mm to ⌀75 mm in STL format. Length of this adapter is 60 mm. The thickness of the tubes is identical: 5 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 100 mm
side A thickness 5 mm
side B length 20 mm
side B outer diameter 75 mm
side B thickness 5 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 53–35 mm (Length: 100 mm) (📦 #2985)

1 object(s) - format STL
Tube adapter STL file ⌀ 53–35 mm (Length: 100 mm)
Straight tube fitting ⌀53 mm to ⌀35 mm in STL 3D format. Length of this adapter is 100 mm. The larger-diameter tube has a thickness of 4 mm and a length of 45 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 40 mm. The ends are not rounded.
Parameter Value Unit
side A length 45 mm
side A outer diameter 53 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 35 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 58–45 mm (Length: 100 mm) (📦 #2970)

1 object(s) - format STL
Tube adapter STL file ⌀ 58–45 mm (Length: 100 mm)
Tubing reducer ⌀58 mm to ⌀45 mm in STL format. Total length of this junction is 100 mm. The larger-diameter tube has a thickness of 4 mm and a length of 45 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 40 mm. The ends are raw.
Parameter Value Unit
side A length 45 mm
side A outer diameter 58 mm
side A thickness 4 mm
side B length 40 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 file ⌀ 53–45 mm (Length: 100 mm) (📦 #2971)

1 object(s) - format STL
Tube adapter STL file ⌀ 53–45 mm (Length: 100 mm)
Straight tube fitting ⌀53 mm to ⌀45 mm in STL 3D format. Final length of this reducer is 100 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 45 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 40 mm. The ends are raw.
Parameter Value Unit
side A length 45 mm
side A outer diameter 53 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 45 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 32–17 mm (Length: 123 mm) (📦 #9493)

1 object(s) - format STL
Tubing adapter STL file ⌀ 32–17 mm (Length: 123 mm)
Straight tubing adapter ⌀32 mm to ⌀17 mm in STL 3D format. Final length of this reducer is 123 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 55 mm, the smaller one of 53 mm. The ends are not rounded.
Parameter Value Unit
side A length 55 mm
side A outer diameter 32 mm
side A thickness 5 mm
side B length 53 mm
side B outer diameter 17 mm
side B thickness 5 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 58–49 mm (Length: 100 mm) (📦 #2984)

1 object(s) - format STL
Tubing adapter STL file ⌀ 58–49 mm (Length: 100 mm)
Tubing reducer ⌀58 mm to ⌀49 mm in STL format. Length of this junction is 100 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 45 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 40 mm. The ends are not rounded.
Parameter Value Unit
side A length 45 mm
side A outer diameter 58 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 49 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet