FLSUN QQ-S Fan Duct

###The first upgrade you should do after unpacking your FLSUN QQ. Replace the stock air ducts which are blowing onto nothing. The water test proves how effective they come out. Beware to print them in PETG or better ABS or they melt... Print them with the flat side down. **No supports needed inside! Only for the clamps... ** Have fun! And please give me likes and share your make. https://youtu.be/NiuaFVTrBQI