Custom Tube adapter STL file ⌀ 100–51 mm (Length: 160 mm) 📦#1098

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Diameter adapter ⌀100 mm to ⌀51 mm in STL format. Total length of this reducer is 160 mm. The larger-diameter tube has a thickness of 4 mm and a length of 60 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 40 mm. The axes of the tubes are off-center by 25.4 mm. The ends feature a fillet to facilitate the connection of the two tubes.
Generation date: 2025-06-16
3D Model Tube adapter STL file ⌀ 100–51 mm (Length: 160 mm)

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  • inline-tube-adapter-lenA60mm-d_model1098-nb0_dd{id}.stl : 1.6 Mo
STL Mesh quality : not defined
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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 60 mm (≃2 3/8 in)
#2 side A outer diameter 100 mm (≃3 15/16 in)
#3 side A thickness 4 mm (≃0.16 in)
#4 side B length 40 mm (≃1 9/16 in)
#5 side B outer diameter 51 mm (≃2 in)
#6 side B thickness 5 mm (≃3/16 in)
#7 transition length 60 mm (≃2 3/8 in)
#8 axis offset 25.4 mm (1 in)
#9 ends fillet fillet on both inside
and outside
Metadata Value
inner diameter (side A) 92 mm (≃3 5/8 in)
inner diameter (side B) 41 mm (≃1 5/8 in)
total length 160 mm (≃6 5/16 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

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To search for a model based on your own parameters, go to the template page Inline tube adapter 

Inline tube junction ⌀100 mm to ⌀50 mm in STL 3D format. Length of this coupler is 160 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 60 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 40 mm. The axes of the tubes are off-center by 25.4 mm. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 60 mm
side A outer diameter 100 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 50 mm
side B thickness 5 mm
transition length 60 mm
axis offset 25.4 mm
ends fillet fillet on bo...
Straight tubing adapter ⌀100 mm to ⌀51 mm in STL format. Total length of this coupler is 180 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 80 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 40 mm. The axes of the tubes are offset by 25.4 mm. The ends feature a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 80 mm
side A outer diameter 100 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 51 mm
side B thickness 5 mm
transition length 60 mm
axis offset 25.4 mm
ends fillet fillet on bo...
Straight tube reducer ⌀100 mm to ⌀50 mm in STL 3D format. Length of this coupler is 140 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 40 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 40 mm as well. The axes of the tubes are off-center by 25.4 mm. The ends have a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 40 mm
side A outer diameter 100 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 50 mm
side B thickness 5 mm
transition length 60 mm
axis offset 25.4 mm
ends fillet fillet on bo...
Inline tube reducer ⌀60 mm to ⌀30 mm in STL format. Length of this fitting is 150 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The axes of the tubes are offset by 14 mm. The ends are rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 60 mm
side A thickness 5 mm
side B length 50 mm
side B outer diameter 30 mm
side B thickness 5 mm
transition length 50 mm
axis offset 14 mm
ends fillet fillet on bo...
Inline tube coupler ⌀80 mm to ⌀50 mm in STL 3D format. Final length of this sleeve is 120 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 40 mm. The two axes of the tubes are off-center by 14.9 mm. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 50 mm
side A outer diameter 80 mm
side A thickness 5 mm
side B length 40 mm
side B outer diameter 50 mm
side B thickness 5 mm
transition length 30 mm
axis offset 14.9 mm
ends fillet fillet on bo...
Inline tube junction ⌀155 mm to ⌀103 mm in STL format. Final length of this reducer is 130 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 60 mm, the smaller one of 40 mm. The two axes of the tubes are offset by 25.4 mm. The ends have a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 60 mm
side A outer diameter 155 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 103 mm
side B thickness 3 mm
transition length 30 mm
axis offset 25.4 mm
ends fillet fillet on bo...
Tube reducer ⌀120 mm to ⌀56 mm in STL 3D format. Total length of this adapter is 120 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 60 mm. The axes of the tubes are offset by 30 mm. The ends feature an internal fillet to make tube connection easier.
Parameter Value Unit
side A length 30 mm
side A outer diameter 120 mm
side A thickness 3 mm
side B length 60 mm
side B outer diameter 56 mm
side B thickness 3 mm
transition length 30 mm
axis offset 30 mm
ends fillet fillet on th...
Tube connector ⌀152 mm to ⌀87 mm in STL 3D format. Total length of this sleeve is 100 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 20 mm. The axes of the tubes are offset by 25.4 mm. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 40 mm
side A outer diameter 152 mm
side A thickness 2.5 mm
side B length 20 mm
side B outer diameter 87 mm
side B thickness 2.5 mm
transition length 40 mm
axis offset 25.4 mm
ends fillet fillet on bo...
Straight sleeve ⌀149.6 mm to ⌀99.6 mm in STL 3D format. Final length of this sleeve is 80 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The two axes of the tubes are offset by 24.9 mm. The ends feature a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 30 mm
side A outer diameter 149.6 mm
side A thickness 4 mm
side B length 30 mm
side B outer diameter 99.6 mm
side B thickness 4 mm
transition length 20 mm
axis offset 24.9 mm
ends fillet fillet on bo...
Inline tubing adapter ⌀155 mm to ⌀105 mm in STL 3D format. Final length of this coupler is 205 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 70 mm, the smaller one of 40 mm. The two axes of the tubes are off-center by 23.9 mm. The ends feature a fillet to make tube connection easier.
Parameter Value Unit
side A length 70 mm
side A outer diameter 155 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 105 mm
side B thickness 3 mm
transition length 95 mm
axis offset 23.9 mm
ends fillet fillet on bo...
Tubing reducer ⌀150 mm to ⌀99 mm in STL format. Total length of this reducer is 205 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 70 mm, the smaller one of 40 mm. The axes of the tubes are off-center by 25 mm. The ends feature an internal fillet.
Parameter Value Unit
side A length 70 mm
side A outer diameter 150 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 99 mm
side B thickness 3 mm
transition length 95 mm
axis offset 25 mm
ends fillet fillet on th...
Straight sleeve ⌀149.6 mm to ⌀99.6 mm in STL 3D format. Total length of this coupler is 80 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The two axes of the tubes are offset by 20 mm. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 149.6 mm
side A thickness 4 mm
side B length 30 mm
side B outer diameter 99.6 mm
side B thickness 4 mm
transition length 20 mm
axis offset 20 mm
ends fillet fillet on bo...
Tube adapter ⌀100 mm to ⌀50 mm in STL format. 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 30 mm, the smaller one of 30 mm as well. The two axes of the tubes are off-center by 24.9 mm. The ends have a fillet on the inside to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 100 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 50 mm
side B thickness 2 mm
transition length 30 mm
axis offset 24.9 mm
ends fillet fillet on th...
Diameter adapter ⌀104 mm to ⌀50 mm in STL 3D format. Total 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 30 mm, the smaller one of 25 mm. The two axes of the tubes are offset by 25.4 mm. The ends feature an internal fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 104 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 50 mm
side B thickness 2 mm
transition length 30 mm
axis offset 25.4 mm
ends fillet fillet on th...
Tube adapter ⌀104 mm to ⌀50 mm in STL format. Final length of this junction is 85 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 25 mm. The axes of the tubes are off-center by 26 mm. The ends feature an internal fillet to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 104 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 50 mm
side B thickness 2 mm
transition length 30 mm
axis offset 26 mm
ends fillet fillet on th...
Inline tube reducer ⌀104 mm to ⌀50 mm in STL 3D format. Total length of this adapter is 85 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 25 mm. The two axes of the tubes are off-center by 26.9 mm. The ends are rounded on the inside to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 30 mm
side A outer diameter 104 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 50 mm
side B thickness 2 mm
transition length 30 mm
axis offset 26.9 mm
ends fillet fillet on th...
Straight tube fitting ⌀100 mm to ⌀51 mm in STL format. Total length of this sleeve is 160 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 60 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 40 mm. The two axes of the tubes are off-center by 25.4 mm. The ends are raw.
Parameter Value Unit
side A length 60 mm
side A outer diameter 100 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 51 mm
side B thickness 5 mm
transition length 60 mm
axis offset 25.4 mm
ends fillet no fillet
Diameter adapter ⌀102 mm to ⌀67 mm in STL format. Length of this connector is 78 mm. The larger-diameter tube has a thickness of 2.6 mm and a length of 30 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm. The axes of the tubes are offset by 15 mm. The ends feature a fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 102 mm
side A thickness 2.6 mm
side B length 20 mm
side B outer diameter 67 mm
side B thickness 2 mm
transition length 28 mm
axis offset 15 mm
ends fillet fillet on bo...
Inline tube reducer ⌀100 mm to ⌀80 mm in STL format. Final length of this sleeve is 150 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 40 mm, the smaller one of 60 mm. The axes of the tubes are offset by 9.9 mm. The ends are rounded to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 40 mm
side A outer diameter 100 mm
side A thickness 2 mm
side B length 60 mm
side B outer diameter 80 mm
side B thickness 2 mm
transition length 50 mm
axis offset 9.9 mm
ends fillet fillet on bo...
Straight tube adapter ⌀123 mm to ⌀58 mm in STL format. Length of this reducer is 120 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 50 mm as well. The two axes of the tubes are off-center by 4.9 mm. The ends feature a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 50 mm
side A outer diameter 123 mm
side A thickness 5 mm
side B length 50 mm
side B outer diameter 58 mm
side B thickness 5 mm
transition length 20 mm
axis offset 4.9 mm
ends fillet fillet on bo...
Tube coupler ⌀80 mm to ⌀55 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 length of 30 mm, the smaller one of 30 mm as well. The two axes of the tubes are offset by 12.4 mm. The ends have a fillet on the inside to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 80 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 55 mm
side B thickness 2 mm
transition length 80 mm
axis offset 12.4 mm
ends fillet fillet on th...
Inline tube reducer ⌀150 mm to ⌀110 mm in STL format. Final length of this reducer is 170 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 60 mm, the smaller one of 60 mm as well. The two axes of the tubes are offset by 14 mm. The ends have a fillet on the outside to make tube connection easier.
Parameter Value Unit
side A length 60 mm
side A outer diameter 150 mm
side A thickness 5 mm
side B length 60 mm
side B outer diameter 110 mm
side B thickness 5 mm
transition length 50 mm
axis offset 14 mm
ends fillet fillet on th...
Straight tube connector ⌀153 mm to ⌀86 mm in STL format. Final length of this sleeve is 160 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 60 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 40 mm. The two axes of the tubes are offset by 25.4 mm. The ends are not rounded.
Parameter Value Unit
side A length 60 mm
side A outer diameter 153 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 86 mm
side B thickness 5 mm
transition length 60 mm
axis offset 25.4 mm
ends fillet no fillet
Straight tube adapter ⌀186 mm to ⌀113 mm in STL 3D format. Total length of this fitting is 163 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 90 mm, the smaller one of 40 mm. The axes of the tubes are offset by 33 mm. The ends feature a fillet.
Parameter Value Unit
side A length 90 mm
side A outer diameter 186 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 113 mm
side B thickness 3 mm
transition length 33 mm
axis offset 33 mm
ends fillet fillet on bo...
Straight tube coupler ⌀155 mm to ⌀90 mm in STL 3D format. Total length of this connector is 160 mm. The larger-diameter tube has a thickness of 4 mm and a length of 60 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 40 mm. The two axes of the tubes are off-center by 25.4 mm. The ends are not rounded.
Parameter Value Unit
side A length 60 mm
side A outer diameter 155 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 90 mm
side B thickness 5 mm
transition length 60 mm
axis offset 25.4 mm
ends fillet no fillet
Inline tube reducer ⌀90 mm to ⌀49 mm in STL format. Total length of this junction is 120 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 40 mm. The axes of the tubes are off-center by 20 mm. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 90 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 49 mm
side B thickness 4 mm
transition length 30 mm
axis offset 20 mm
ends fillet no fillet
Inline sleeve ⌀80 mm to ⌀32 mm in STL format. Total length of this fitting is 110 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 60 mm. The two axes of the tubes are offset by 10 mm. The ends feature an internal fillet to make tube connection easier.
Parameter Value Unit
side A length 30 mm
side A outer diameter 80 mm
side A thickness 3 mm
side B length 60 mm
side B outer diameter 32 mm
side B thickness 3 mm
transition length 20 mm
axis offset 10 mm
ends fillet fillet on th...
Inline tubing adapter ⌀120 mm to ⌀56 mm in STL format. Final length of this connector is 130 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 60 mm. The two axes of the tubes are off-center by 6 mm. The ends feature an internal fillet to make tube connection easier.
Parameter Value Unit
side A length 30 mm
side A outer diameter 120 mm
side A thickness 3 mm
side B length 60 mm
side B outer diameter 56 mm
side B thickness 3 mm
transition length 40 mm
axis offset 6 mm
ends fillet fillet on th...
Straight tube reducer ⌀74 mm to ⌀57 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 sleeve length of 25 mm, the smaller one of 25 mm as well. The two axes of the tubes are off-center by 8 mm. The ends feature a fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 74 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 57 mm
side B thickness 3 mm
transition length 20 mm
axis offset 8 mm
ends fillet fillet on bo...