Shed Vent Fan

DIY Shed Ventilation using DC motor XD-3420 (recommend threaded model) powered via solar panel (or any desired means) needs 6-7 Watt to run recommend max 25W solar minimum something above 10W. Updated file to use PETG since during my summer the PLA started warping and needed replaced. Added fan cover into 3mf file. Optional can use M3 25 mm screw to hold fan in place with nut and/or with threaded insert see picture. Feel design isn't well polished but is what i'm using since already put so much work into it. For one wish i made it smaller and the fan cover needs to be loose and not touch fan.