OEM style fan duct for cooling, using TH3D EZABL (18mm). Fairly basic, easy print. I have only tested it at 0.5 nozzle.
Please try it, comment if it worked out ok. Should only use about 37g of filament. Print time at 20mm/s with 0.5mm nozzle was 1hr 27 minutes. Print speed does need to be slow for the fan cover section.
This is a work in progress, I am test fitting currently. and will print it finer when I get a moment spare on my CR10.
Pantech PLA+ PLA+
Designed for printing at 0.2mm, my test print was 0.5 and went well. I did not need more infill with the large nozzle, I would recommend maybe 15-20% for 0.2mm