Exhaust Fan Flange 92mm to 75mm

SummaryThis is basically just a part intended to connect a 92mm 12V fan to a 75mm diameter duct. It will act as a connecting part for my 3D printer enclosures exhaust. The parts i am using: Fan: http://www.pollin.de/shop/dt/NTc0OTc2OTk-/Bauelemente_Bauteile/Luefter/Axialluefter_SUNON_HA92251V4_999_92x92x25_mm_12_V_.html Duct (75mm version): http://www.ebay.de/itm/300650466024 Print SettingsPrinter: Original Prusa i3Rafts: NoSupports: NoResolution: 0.2 mm layerInfill: 15%Notes: Print time is about ~3 hours, the part turns out to be very rigid.