Flsun QQ-S V6 fan cooling ducts

thingiverse

The original fan duct (like all I have tried so far) was made for the (frankly, atrocious) original QQ hotend- V6 bowden heatbreak, V5 heatblock and mk8 nozzle (a combination that should not, and indeed did not, work...) Since mine has the V6 configuration of the Dragon hotend, I needed a shorter fan shroud; Secondly, since the original version (while it seems less restrictive to air flow than most others) has quite thin walls, it is less rigid and therefore holds in the effector rather weakly- especially with less rigid materials such as PETG, CPEs or ASA (which are also the more heat-resistant ones...); so I added a rim on the outside to stiffen the system a bit. Print out of a material you expect to hold its shape right above the heat bed; mine are out of Fiberlogy CPE-HT With on-plate supports, and ideally a brim as well PS. to get the second duct, mirror the STL in your slicer