Prusa Mini Detachable Cooling NO THREAD INSERT + Scorpio Cooling duct for dragon HF (and v6 design)

Essentially it is a remix of this one https://www.thingiverse.com/thing:4894561. I removed the thread insert and modified for square nuts. I reworked the cooling duct for the Dragon Hotend (high flow for me, but works obviously also for the normal version).