Circle to Ellipse Reducing Elbow Tube
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Circular to elliptical duct reducer for 2.5" hose, curved path, parametric OpenSCAD.
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Model information
- Source
- Printables
- Category
- Mechanical Parts
- License
- Creative Commons — Public Domain
This is a parametric duct reducer that transitions from a circular to an elliptical profile along a curved path. It's ideal for routing 2.5" tubing around corners while preserving airflow — useful for fume extraction, dust collection, or general ventilation.
Features:
- Smooth arc transition with adjustable curvature
- Elliptical scaling for compact or directional airflow
- Optional straight extensions for easier coupling
- Adjustable wall thickness for strength/tolerance tuning
Designed in OpenSCAD using BOSL2.
The STL model is released into the public domain (CC0).
The source code is MIT licensed and fully parametric.
Note: I integrated this into a larger assembly, so I don't have standalone photos of the part — but it prints and works great.