Design your own perfectly sized pipe reducer with this fully parametric OpenSCAD model.

This model allows you to generate custom reducers by simply adjusting a few parameters—ideal for 3D printing adapters for ventilation, plumbing, dust collection, or DIY projects.

🔧 Features

• Fully parametric design
• Adjustable:
  • Inside diameter (main pipe)
  • Reduction diameter (outlet)
  • Wall thickness
  • Inlet length (straight section)
  • Transition length (taper)
  • Outlet length (straight section)
• Smooth tapered transition for better airflow and strength
• Clean geometry optimized for 3D printing

🧰 Use Cases

• Ventilation adapters (HVAC)
• Dust collection systems
• Workshop hose reducers
• DIY plumbing (non-pressurized recommended)
• Custom lab or electronics enclosures

🖨️ Printing Tips

• Print vertically for best strength and roundness
• Use 3–5 perimeters for durability
• Increase wall thickness for pressure applications
• Add slight tolerance (+0.2–0.4 mm) to diameters for slip fit depending on your printer

⚠️ Disclaimer

This model is intended for prototyping and non-critical use. For pressurized or safety-critical systems, verify dimensions and material suitability.