Layer fan holder for Flsun printer

flsun cubic printer hasnt layer cooling system. its a shame. so i designed my own.
can be printed without suports. done my one with 0.2 layer height it fits perfectly but it decreases the printing area by 1-2mm. sounds worth to get layer cooling.
Also tryed to make the extruder cooler flow go up and dont interact with layers when printing abs. not really acomplished. it still having some flow but now way less than default.

Its needed to rotate for print it.

Maybe i change this but at th