Please print the duct in at least PETG, if you can print ASA/ABS then feel free to do so. This is an updated design of my original shroud as requested my many members on our discord, the link is here if your interested;
Thanks to Ioan for the pictures
Print orientated like this;
and the fan duct like this (needs to be printed with a brim) ;
The author marked this model as their own original creation.