FLSUN QQ-S Pro Part Cooler Duct

Update: 2021-02-19

• Found an error on the E3D Version, when reprinting the duct for myself
• deleted the faulty version and uploaded the corrected one

Update: 2021-01-16

• Finished the Support Free Version
• Made a Version for an E3Dv6 Hotend
• Made CFD Simulations for all Versions
• Renamed the STL's

Update: 2020-12-21

Redesign of Variant 1 (FLSun QQ-S Pro Duct v4):

• Better Fit and Snap
• 1mm "Ring" to better cover the printers opening
• Nozzle better centered
• Airflow optimized

Most of the existing designs were not quite OK for my Stock QQ-S Pro.

Almost all (I tried) where blowing directly onto the nozzle.

Compared to the stock duct you might need to decrease your fan-speed.

PID Tuning after replacement is recommended.

I recommend using PETG or ABS for printing. After serval testprints I finally used GreenTEC Pro from extrudr (it prints almost like PLA using temps like PETG, but it is Heat resistance up to 160°C VICAT A / 115°C HDT/B*)

Print Settings

Printer:

FLSUN QQ-S Pro

Rafts:

No

Supports:

Yes

Resolution:

0.16, 0.20

Infill:

doesn't matter

Filament:

extrudr GreenTEC Pro

doesn't matter

Notes:

For the first prints on my FLSUN QQ-S Pro I was additionally using a raft as the lattice bed doesn't offer very good adhesion with PETG.

During longer prints (12hrs+) without partcooler (as I mostly use PETG) I noticed that one of the ducts had a slight deformation. Therefore although PETG seems to work OK (if you are using part cooling for your prints, I recommend filaments with higher glass transition tempertures like ABS, GreenTEC oder GreenTEC Pro.

Category: 3D Printer Parts