150mm to 125mm duct 90 degree elbow

A custom design to connect a 150mm (6 inch) cooker hood extractor to a through-wall 125mm (5 inch) duct/vent at 90 degrees, without requiring other adapters for maximum air flow.

• Hood exhaust has outer diameter of 150mm, so adapter has collar that sits on outside for snug fit.
• Wall duct has inner diameter of 125mm, so adapter has sleeve that slots into that.
• Recommend to secure with duct tape or print something (150mm pipe buckle or 150mm clamp or 100mm hose clamp)

I used PLA as more flexible and does not get hot enough in my setup, but consider PETG for hotter applications.