Exhaust Fan Duct Adapter
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A duct adapter for an exhaust fan
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Other House Equipment
- Licencja
- Creative Commons — Attribution — Noncommercial — Share Alike
I made this adapter for a Broan-Nutone exhaust fan. I was replacing an old existing fan and realized it's output was approximately 4" and the new one is about 3". Most of these types of adapters I was able to find were for reducing the size from 4" down to 3" instead of increasing the size like I needed.
The small side has an ID of 75mm and a 1 degree taper. It was a very snug fit on the exhaust fan outlet. I actually had to sand the edges and inner surface a bit to remove any burrs and flatten the printed seam a little.
The large end has an OD of 100mm with a small lip that sticks out about 1mm. This was intended to take a flexible hose with a metal hose clamp.
I set the infill to 100%. Although the wall thickness is only 2mm so I'm not sure that it really makes a difference. It didn't look like there was too much difference in the estimated filament usage between 15% and 100% infill.
Anyway it seems strong enough for what is required. Printed in PETG.