Hiprecy LEO - Part Cooling Fan Ducts

thingiverse

These replace the factory part cooling fan ducts on the LEO. The factory ducts seem nicely made but do a terrible job of cooling. They pretty much just blow air at the heater block and behind the nozzle. These custom ducts direct the air flow toward the nozzle where it belongs. With this design my overhangs went from shabby looking at 50 degrees to decent looking at 70 degrees (see photo). Print them right side up with or without supports. I printed them without supports and got a little bit of drooping across the top of the outlet but it did not affect performance.