This is a fan cover for the inside of the Qube 500 enclosure. It has been optimised for 140mm/120mm fans. The different parts of the cover are plugged together and the whole cover is fixed to the enclosure with 6x M4 screws. The same hole pattern is used on the case. This means that the same various accessories can be attached.
The fan cover is split in two so that you can print it on a Prusa mini.
I haven't printed it myself yet, but you should put the parts on the large surface and use support structures for the cutouts.
The author marked this model as their own original creation.