Mk7 fan duct v2

thingiverse

For a stronger airflow at the nozzle, upgrade from the standard Mk7 fan to a 4mm version. Compared to the original design, this modification involves disassembling the Mk7 extruder, replacing the duct with one that channels more air towards the nozzle, and attaching the beefier fan using two M3x16 bolts. Previous attempts at increasing airflow were unsafe and ineffective; this improved method is both reliable and efficient. Don't forget to print the updated duct design!