Anycubic i3 mega fan duct for Sunon radial fan

Made this part to use the Sunon fan (Sunon Radial Fan 50x50x15mm MF50151VX-A99) for part cooling while mounting it in the original Anycubic fanbox.

Mounting requires a second hole to be drilled right next to the bottom one to fit the different screw distance of the Sunon fan instead of the original Boosfan - the fan outlet should then sit well aligned with the bottom of the fanbox but slightly lower than in the original printed fanbox, so this fan duct is not as tall as the original one to co