Creality CR-10S PRO Air Duct

I designed this inlet duct due to reason that my heatsink cooling fan gets replaced a lot due to random strings being rolled on it (they happen even with well calibrated retraction), causing for jammed rotation noise at low speed, until the fan gets warm. Then it starts rotating OK, at the full speed.

I was cleanig out or replacing the fan, but then I decided to prevent the clogging.
I glued this duct with the opening upwards, so no strings from print can get into the fan.

I have used the Scotch double-sided glue, to attach the duct.

This one was designed for Creality CR-10S PRO, but I think it can fit other fan guards, having an outside frame of about 43mm.