Custom Tubing adapter STL file ⌀ 38–30 mm (Length: 80 mm) 📦#9396

STL Download STL 2
Create a new model expert
from scratch search for a model
Inline fitting ⌀38 mm to ⌀30 mm in STL 3D format. Total length of this reducer 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 have no fillet.
Generation date: 2026-06-11
3D Model Tubing adapter STL file ⌀ 38–30 mm (Length: 80 mm)

3D model download

Free
  • inline-tube-adapter-lenA20mm-d_model9396-nb0_dd{id}.stl : 529.2 Ko
STL Mesh quality : Linear deflection 0.05 Angular deflection 0.05
No compliance warranty No compliance warranty
(attribution - commercial use allowed)
Safe download
Instant .zip download — no email, no account

Values for this model

This model was generated by the Inline tube adapter template, with the following values:
Parameter Value
#1 side A length 20 mm (≃0.79 in)
#2 side A outer diameter 38 mm (≃1 1/2 in)
#3 side A thickness 2 mm (≃0.08 in)
#4 side B length 20 mm (≃0.79 in)
#5 side B outer diameter 30 mm (≃1 3/16 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 40 mm (≃1 9/16 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 34 mm (≃1.34 in)
inner diameter (side B) 26 mm (≃1.02 in)
total length 80 mm (≃3.15 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 file ⌀ 38–25 mm (Length: 100 mm) (📦 #7832)

1 object(s) - format STL
Tubing adapter STL file ⌀ 38–25 mm (Length: 100 mm)
Inline fitting ⌀38 mm to ⌀25 mm in STL format. Length of this reducer is 100 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 ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 38 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 36–25 mm (Length: 100 mm) (📦 #7760)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 36–25 mm (Length: 100 mm)
Inline sleeve ⌀36 mm to ⌀25 mm in STL format. Length of this fitting is 100 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 ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 36 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 61–15 mm (Length: 80 mm) (📦 #1326)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 61–15 mm (Length: 80 mm)
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

Tubing adapter STL file ⌀ 25–20 mm (Length: 100 mm) (📦 #6713)

1 object(s) - format STL
Tubing adapter STL file ⌀ 25–20 mm (Length: 100 mm)
Tube junction ⌀25 mm to ⌀20 mm in STL 3D format. Final length of this junction is 100 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 ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 25 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 39–33 mm (Length: 90 mm) (📦 #3411)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 39–33 mm (Length: 90 mm)
Straight tube fitting ⌀39 mm to ⌀33 mm in STL format. Total length of this reducer 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 ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 39 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 33 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 36–26 mm (Length: 100 mm) (📦 #7731)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 36–26 mm (Length: 100 mm)
Tubing reducer ⌀36 mm to ⌀26 mm in STL 3D format. Final length of this reducer is 100 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 36 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 26 mm
side B thickness 2 mm
transition length 60 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 38–12 mm (Length: 110 mm) (📦 #4670)

1 object(s) - format STL
Tubing adapter STL file ⌀ 38–12 mm (Length: 110 mm)
Tube connector ⌀38 mm to ⌀12 mm in STL format. Length of this adapter is 110 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 ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 38 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 12 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 39–36 mm (Length: 60 mm) (📦 #6845)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 39–36 mm (Length: 60 mm)
Inline tube coupler ⌀39 mm to ⌀36 mm in STL format. Length of this junction is 60 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 have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 39 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 36 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 44–16 mm (Length: 90 mm) (📦 #1270)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 44–16 mm (Length: 90 mm)
Inline fitting ⌀44 mm to ⌀16 mm in STL format. Final length of this sleeve is 90 mm. The larger-diameter tube has a thickness of 2.5 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 raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 44 mm
side A thickness 2.5 mm
side B length 30 mm
side B outer diameter 16 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 36–26 mm (Length: 80 mm) (📦 #7635)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 36–26 mm (Length: 80 mm)
Straight tube fitting ⌀36 mm to ⌀26 mm in STL format. 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 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 36 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 26 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 45–15 mm (Length: 90 mm) (📦 #1272)

1 object(s) - format STL
Tube adapter STL file ⌀ 45–15 mm (Length: 90 mm)
Tube coupler ⌀45 mm to ⌀15 mm in STL format. Total length of this sleeve is 90 mm. The larger-diameter tube has a thickness of 2.5 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 raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 45 mm
side A thickness 2.5 mm
side B length 30 mm
side B outer diameter 15 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 41–5 mm (Length: 75 mm) (📦 #9861)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 41–5 mm (Length: 75 mm)
Straight tube fitting ⌀41 mm to ⌀5 mm in STL 3D format. Length of this sleeve is 75 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 10 mm. The ends are raw.
Parameter Value Unit
side A length 15 mm
side A outer diameter 41 mm
side A thickness 2 mm
side B length 10 mm
side B outer diameter 5 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 35–19 mm (Length: 60 mm) (📦 #7901)

1 object(s) - format STL
Tube adapter STL file ⌀ 35–19 mm (Length: 60 mm)
Tube coupler ⌀35 mm to ⌀19 mm in STL format. Length of this sleeve is 60 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a 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 35 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 19 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 10–8 mm (Length: 70 mm) (📦 #2847)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 10–8 mm (Length: 70 mm)
Inline sleeve ⌀10 mm to ⌀8 mm in STL format. Length of this junction is 70 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 ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 10 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 8 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 33–19 mm (Length: 60 mm) (📦 #7943)

1 object(s) - format STL
Tube adapter STL file ⌀ 33–19 mm (Length: 60 mm)
Inline tube reducer ⌀33 mm to ⌀19 mm in STL format. Final length of this reducer is 60 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 15 mm. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 33 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 19 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 45–10 mm (Length: 90 mm) (📦 #1260)

1 object(s) - format STL (4.0/5) 1 vote(s)
Tube adapter STL 3D file ⌀ 45–10 mm (Length: 90 mm)
Inline sleeve ⌀45 mm to ⌀10 mm in STL format. Total length of this connector is 90 mm. The larger-diameter tube has a thickness of 2.5 mm and a length of 30 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 30 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 45 mm
side A thickness 2.5 mm
side B length 30 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 60–12 mm (Length: 110 mm) (📦 #4672)

1 object(s) - format STL
Tube adapter STL file ⌀ 60–12 mm (Length: 110 mm)
Tubing adapter ⌀60 mm to ⌀12 mm in STL 3D format. Length of this fitting is 110 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 ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 60 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 12 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 60–12 mm (Length: 90 mm) (📦 #4674)

1 object(s) - format STL
Tube adapter STL file ⌀ 60–12 mm (Length: 90 mm)
Tubing reducer ⌀60 mm to ⌀12 mm in STL format. Final length of this sleeve is 90 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve 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 60 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 12 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 45–9 mm (Length: 90 mm) (📦 #1271)

1 object(s) - format STL
Tube adapter STL file ⌀ 45–9 mm (Length: 90 mm)
Straight tube connector ⌀45 mm to ⌀9 mm in STL 3D format. Total length of this fitting is 90 mm. The larger-diameter tube has a thickness of 2.5 mm and a 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.
Parameter Value Unit
side A length 30 mm
side A outer diameter 45 mm
side A thickness 2.5 mm
side B length 30 mm
side B outer diameter 9 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 37–33 mm (Length: 80 mm) (📦 #3410)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 37–33 mm (Length: 80 mm)
Inline tubing adapter ⌀37 mm to ⌀33 mm in STL format. Final length of this junction is 80 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 ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 37 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 33 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 12–9 mm (Length: 65 mm) (📦 #2845)

1 object(s) - format STL
Tubing adapter STL file ⌀ 12–9 mm (Length: 65 mm)
Straight sleeve ⌀12 mm to ⌀9 mm in STL 3D format. Final length of this junction is 65 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 ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 12 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 9 mm
side B thickness 2 mm
transition length 25 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 65–55 mm (Length: 80 mm) (📦 #8220)

1 object(s) - format STL
Tubing adapter STL file ⌀ 65–55 mm (Length: 80 mm)
Inline sleeve ⌀65 mm to ⌀55 mm in STL format. Final length of this fitting is 80 mm. The thickness of the tubes is identical: 2 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 65 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 55 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 44–36 mm (Length: 80 mm) (📦 #5045)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 44–36 mm (Length: 80 mm)
Straight tube adapter ⌀44 mm to ⌀36 mm in STL format. Length of this fitting is 80 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 ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 44 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 36 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 71–55 mm (Length: 70 mm) (📦 #7438)

1 object(s) - format STL
Tubing adapter STL file ⌀ 71–55 mm (Length: 70 mm)
Inline tube coupler ⌀71 mm to ⌀55 mm in STL format. Total length of this fitting is 70 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 ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 71 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 55 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 80–30 mm (Length: 63 mm) (📦 #3810)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 80–30 mm (Length: 63 mm)
Inline tube reducer ⌀80 mm to ⌀30 mm in STL 3D format. Length of this reducer is 63 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 80 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 30 mm
side B thickness 2 mm
transition length 38 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 12–6 mm (Length: 65 mm) (📦 #2844)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 12–6 mm (Length: 65 mm)
Straight tube reducer ⌀12 mm to ⌀6 mm in STL format. Total length of this connector is 65 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 have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 12 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 6 mm
side B thickness 2 mm
transition length 25 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 50–46 mm (Length: 90 mm) (📦 #3179)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 50–46 mm (Length: 90 mm)
Diameter adapter ⌀50 mm to ⌀46 mm in STL format. Final length of this coupler is 90 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 35 mm. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 50 mm
side A thickness 2 mm
side B length 35 mm
side B outer diameter 46 mm
side B thickness 2 mm
transition length 25 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 31–15 mm (Length: 75 mm) (📦 #5849)

1 object(s) - format STL
Tube adapter STL file ⌀ 31–15 mm (Length: 75 mm)
Inline tubing adapter ⌀31 mm to ⌀15 mm in STL format. Total length of this junction is 75 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 30 mm. The axes of the tubes are offset by 5 mm. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 31 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 15 mm
side B thickness 2 mm
transition length 25 mm
axis offset 5 mm
ends fillet no fillet

Tube adapter STL file ⌀ 40–16 mm (Length: 85 mm) (📦 #2463)

1 object(s) - format STL
Tube adapter STL file ⌀ 40–16 mm (Length: 85 mm)
Tube adapter ⌀40 mm to ⌀16 mm in STL format. Final length of this adapter is 85 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 20 mm. The ends are raw.
Parameter Value Unit
side A length 40 mm
side A outer diameter 40 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 16 mm
side B thickness 2 mm
transition length 25 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 45–10 mm (Length: 97 mm) (📦 #1443)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 45–10 mm (Length: 97 mm)
Inline tube junction ⌀45 mm to ⌀10 mm in STL 3D format. Total length of this fitting is 97 mm. The larger-diameter tube has a thickness of 2.5 mm and a sleeve length of 30 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 37 mm. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 45 mm
side A thickness 2.5 mm
side B length 37 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet