Vent outlet for 100mm pipe

I needed a vent outlet for a bathroom extractor fan and couldn't find one small enough to fit in my soffit so I designed this one in tinkercad and printed on my new A1 (love this printer but wish I had bought the ams lite with it) 

Anyway the vent works perfectly. I used white pla and will probably reprint in a more durable filament if needed.

There is also a ring that fits inside to secure insect mesh if needed.