I was struggling with the part cooling what I found for the CR10-MAX Micro Swiss extruder.

With this design you don't need to modify the BL-touch offsets, and easier to access the heat block if necessary.

Necessary screws:

-2pcs M3x8 socket head screw to mount the Heatblock_cooling_V2, you can use the original screws also

-2pcs M3x20 socket head screw to mount the Part_cooling_v5

-3pcs M3x16 socket head screw to mount the 4020 blower fan

-4pcs M3x12 socked head screw to mount the 4010 fan, the length can variate, it depends what type of fan yo are using

Feel free to use it. It is in test phase but I'm pleased with the result.