QIDI TECH X-MAKER cooling upgrade

This is my cooling upgrade for the QIDI-TECH X-MAKER (I believe it should fit X-MAX and X-PLUS since they have same extruder).

The original part cooling has an internal 5015 fan but it's airflow is very poorly guided to the actual printed part.

After this upgrade I'm getting much better results with bridges and overhangs.

I tried to create this cooling mod with consideration in mind to have as minimum irreversible modifications to the original extruder as possible - so only two small holes for the M2 bolts should be drilled in the plastic of the extruder bottom side.

In order to create this mod you will need a standard 24V 5015 blower fan like the extruder already has(I didn't remove the original one and just wired the new fan in parallel to it), two M2 bolts with nuts and two 25mm M3 bolts.

The original M3 bolts that are holding the extruder hot-end are too short to use with this cooler mod, so you will have to replace them with a longer ones.
For the M2 bolts there i