Digitus Wall Rack Fan Duct

I got a Digitus DN-19 09U-6/6 wall rack for my equipment and wanted to route the exhaust on top to a building outlet.

So i designed this duct fan to be used with the 2x 120mm fan holes at the top of the rack to be combined into a single 100mm outlet which can be used with general available duct pipes in my area.

Design is split into 3 parts so that a smaller printer like an Ender 3 can print it.

Parts need to be glued together.

Screwholes fit M4 screws.

PS: Fans can be mounted on top of the rack or inside the rack.