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Custom Tube adapter STL 3D file ⌀ 76–30 mm (Length: 170 mm) 📦#3914

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Tube coupler ⌀76 mm to ⌀30 mm in STL 3D format. Total length of this coupler is 170 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 50 mm. The ends are raw.
Generation date: 2025-11-27
3D Model Tube adapter STL 3D file ⌀ 76–30 mm (Length: 170 mm)

3D model download

Free
  • inline-tube-adapter-lenA30mm-d_model3914-nb0_dd{id}.stl : 1.4 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 76 mm (≃3 in)
#3 side A thickness 3 mm (≃1/8 in)
#4 side B length 50 mm (≃1.97 in)
#5 side B outer diameter 30 mm (≃1 3/16 in)
#6 side B thickness 3 mm (≃1/8 in)
#7 transition length 90 mm (≃3.54 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 70 mm (≃2 3/4 in)
inner diameter (side B) 24 mm (≃15/16 in)
total length 170 mm (≃6 11/16 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 fitting ⌀77 mm to ⌀30 mm in STL format. Length of this sleeve is 140 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 50 mm. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 77 mm
side A thickness 3 mm
side B length 50 mm
side B outer diameter 30 mm
side B thickness 3 mm
transition length 60 mm
axis offset 0 mm
ends fillet no fillet
Inline sleeve ⌀60 mm to ⌀26 mm in STL format. Total length of this coupler is 180 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 40 mm as well. The ends have a fillet on the outside.
Parameter Value Unit
side A length 40 mm
side A outer diameter 60 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 26 mm
side B thickness 3 mm
transition length 100 mm
axis offset 0 mm
ends fillet fillet on th...
Inline tube coupler ⌀100 mm to ⌀16 mm in STL 3D format. Final length of this sleeve is 140 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 30 mm. The ends are not rounded.
Parameter Value Unit
side A length 10 mm
side A outer diameter 100 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 16 mm
side B thickness 3 mm
transition length 100 mm
axis offset 0 mm
ends fillet no fillet
Tube adapter ⌀100 mm to ⌀20 mm in STL format. Final length of this reducer is 110 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 30 mm. The ends are not rounded.
Parameter Value Unit
side A length 10 mm
side A outer diameter 100 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 20 mm
side B thickness 3 mm
transition length 70 mm
axis offset 0 mm
ends fillet no fillet
Tube fitting ⌀100 mm to ⌀16 mm in STL 3D format. Length of this coupler is 110 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 30 mm. The ends are raw.
Parameter Value Unit
side A length 10 mm
side A outer diameter 100 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 16 mm
side B thickness 3 mm
transition length 70 mm
axis offset 0 mm
ends fillet no fillet
Inline tube reducer ⌀40 mm to ⌀35 mm in STL 3D format. Length of this adapter is 130 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 50 mm. 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 50 mm
side B outer diameter 35 mm
side B thickness 3 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Straight tube connector ⌀100 mm to ⌀34 mm in STL format. Length of this adapter is 115 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 5 mm, the smaller one of 30 mm. The ends have no fillet.
Parameter Value Unit
side A length 5 mm
side A outer diameter 100 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 34 mm
side B thickness 2 mm
transition length 80 mm
axis offset 0 mm
ends fillet no fillet
Tubing adapter ⌀83 mm to ⌀63 mm in STL 3D format. Length of this adapter is 120 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 83 mm
side A thickness 3 mm
side B length 15 mm
side B outer diameter 63 mm
side B thickness 3 mm
transition length 90 mm
axis offset 0 mm
ends fillet no fillet
Tubing reducer ⌀100 mm to ⌀71 mm in STL format. Final length of this fitting is 190 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 70 mm. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 100 mm
side A thickness 3 mm
side B length 70 mm
side B outer diameter 71 mm
side B thickness 3 mm
transition length 70 mm
axis offset 0 mm
ends fillet no fillet
Straight tube connector ⌀100 mm to ⌀24 mm in STL 3D format. Total length of this fitting is 105 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 5 mm, the smaller one of 20 mm. The ends are raw.
Parameter Value Unit
side A length 5 mm
side A outer diameter 100 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 24 mm
side B thickness 2 mm
transition length 80 mm
axis offset 0 mm
ends fillet no fillet
Inline tube junction ⌀27 mm to ⌀23 mm in STL format. Length of this junction is 162 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 31 mm, the smaller one of 71 mm. The ends have no fillet.
Parameter Value Unit
side A length 31 mm
side A outer diameter 27 mm
side A thickness 2 mm
side B length 71 mm
side B outer diameter 23 mm
side B thickness 2 mm
transition length 60 mm
axis offset 0 mm
ends fillet no fillet
Inline sleeve ⌀102 mm to ⌀61 mm in STL 3D format. Final length of this junction is 125 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 15 mm. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 102 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 61 mm
side B thickness 2 mm
transition length 90 mm
axis offset 0 mm
ends fillet no fillet
Inline tube coupler ⌀81 mm to ⌀61 mm in STL 3D format. Final length of this coupler is 115 mm. The thickness of the tubes is identical: 2 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 81 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 61 mm
side B thickness 2 mm
transition length 85 mm
axis offset 0 mm
ends fillet no fillet
Inline fitting ⌀82 mm to ⌀61 mm in STL format. Total length of this connector is 100 mm. The larger-diameter tube has a thickness of 2 mm and a length of 20 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 20 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 20 mm
side A outer diameter 82 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 61 mm
side B thickness 3 mm
transition length 60 mm
axis offset 0 mm
ends fillet no fillet
Inline tube reducer ⌀80 mm to ⌀66 mm in STL 3D format. Final length of this sleeve is 120 mm. The larger-diameter tube has a thickness of 3 mm and a length of 40 mm. The smaller-diameter tube has a thickness of 2.5 mm and a length of 30 mm. The ends have no fillet.
Parameter Value Unit
side A length 40 mm
side A outer diameter 80 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 66 mm
side B thickness 2.5 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Straight tube reducer ⌀150 mm to ⌀75 mm in STL format. Total length of this sleeve is 150 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 40 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 150 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 75 mm
side B thickness 3 mm
transition length 70 mm
axis offset 0 mm
ends fillet no fillet
Straight sleeve ⌀60 mm to ⌀30 mm in STL 3D format. Final length of this adapter is 140 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 20 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 20 mm as well. The two axes of the tubes are off-center by 13.9 mm. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 60 mm
side A thickness 4 mm
side B length 20 mm
side B outer diameter 30 mm
side B thickness 3 mm
transition length 100 mm
axis offset 13.9 mm
ends fillet no fillet
Straight tube connector ⌀104 mm to ⌀81 mm in STL 3D format. Length of this fitting is 140 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 5 mm. The ends are not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 104 mm
side A thickness 3 mm
side B length 5 mm
side B outer diameter 81 mm
side B thickness 3 mm
transition length 95 mm
axis offset 0 mm
ends fillet no fillet
Tube adapter ⌀75 mm to ⌀66 mm in STL 3D format. Length of this connector is 120 mm. The larger-diameter tube has a thickness of 4 mm and a length of 40 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 40 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 40 mm
side A outer diameter 75 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 66 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet
Tube junction ⌀113 mm to ⌀40 mm in STL format. Total length of this reducer is 85 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 20 mm. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 113 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 40 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet
Tube junction ⌀27 mm to ⌀23 mm in STL format. Length of this fitting is 192 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 61 mm, the smaller one of 71 mm. The ends are raw.
Parameter Value Unit
side A length 61 mm
side A outer diameter 27 mm
side A thickness 2 mm
side B length 71 mm
side B outer diameter 23 mm
side B thickness 2 mm
transition length 60 mm
axis offset 0 mm
ends fillet no fillet
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...
Tube junction ⌀100 mm to ⌀60 mm in STL format. Total length of this junction is 180 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 60 mm, the smaller one of 60 mm as well. The ends feature an external fillet.
Parameter Value Unit
side A length 60 mm
side A outer diameter 100 mm
side A thickness 2 mm
side B length 60 mm
side B outer diameter 60 mm
side B thickness 2 mm
transition length 60 mm
axis offset 0 mm
ends fillet fillet on th...
Tube fitting ⌀75 mm to ⌀50 mm in STL 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 20 mm, the smaller one of 20 mm as well. The axes of the tubes are off-center by 12.4 mm. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 75 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 50 mm
side B thickness 2 mm
transition length 60 mm
axis offset 12.4 mm
ends fillet no fillet
Straight tube connector ⌀61 mm to ⌀15 mm in STL 3D format. Final length of this fitting is 80 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 are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 61 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 15 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet
Inline tube coupler ⌀90 mm to ⌀50 mm in STL 3D format. Total length of this connector is 130 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 40 mm. The two axes of the tubes are offset by 1 mm. The ends feature an external fillet to make tube connection easier.
Parameter Value Unit
side A length 50 mm
side A outer diameter 90 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...
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
Straight tube fitting ⌀60 mm to ⌀35 mm in STL 3D format. Length of this adapter is 240 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 80 mm, the smaller one of 80 mm as well. The ends are raw.
Parameter Value Unit
side A length 80 mm
side A outer diameter 60 mm
side A thickness 3 mm
side B length 80 mm
side B outer diameter 35 mm
side B thickness 3 mm
transition length 80 mm
axis offset 0 mm
ends fillet no fillet
Straight tube adapter ⌀180 mm to ⌀16 mm in STL format. Final length of this fitting is 150 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 30 mm. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 180 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 16 mm
side B thickness 3 mm
transition length 70 mm
axis offset 0 mm
ends fillet no fillet