5 model

Free

Powerful CTC Fan Duct

Thingiverse

Free

Powerful Sango-Bruticus

Thingiverse

Free

TRIPLE FAN FUN - the most powerful BLOWER V.2

Thingiverse

Free

TRIPLE FAN FUN - the most powerful BLOWER V1

Thingiverse

Free

Ender 3 Fan Duct - Easy, Powerfull, Lightweight

Thingiverse