I had made a new fan duct/nozzle.
The problems by the original fan/fan holder:
More pictures and the stl files are at thingiverse.com/thing:160252
Interessting,
had the same thought’s about a better cooling, because I had massive problems with small high part (gets already deformed) and bridges (hanging through).
Just finished “my” improved cooling solution, based on thingiverse.com/thing:47573
And I’m very impressed about the much more better quality for difficult parts.
The “standard” cooling solution of the K8200 is a nice thing to start with, but I think it’s very important to bring the air to the point(s) where it’s needed 
Regards Bernd
Interesting project 
looks very good.
i am printing the clip at the moment and it works very good
Do you have to print the Nozzle with support ?
What speed do ypu use ?
And some Feedback.
The clip looks good but the bridge from the profile mount to the holder looks a bit thin .
But i will give you my eperience when it is ready.
Best regards
Hi Lars,
I had printed the nozzle without support but i had switched on “keep fan always on” in the filament seting cooling.
the other setings are default.
And i hat rotatet it by repetier for better print (X=90°, Z=270°, dont forget to center new)
But i must say to print this i had used a older nozzle version from me (V5).
There is no wight on holder and nozzle, so the holder with the clip is normaly to big.
But i had made it more solid so i had no chance to vibrate.
Edit: at the last print i used layer high 0,15mm
Realy nice design.
Which Fan do you use? The original one?
Is it possible to get the solid files, to edit?
I want to use a bigger fan, because the original has not enough power to cool abs fast enough.
I’ve printed the whole thing and it greatly improved my printings (thanks Eytec).
When I tried to put the clip in place I broke it so yes it’s thin ;). Instead of reprinting it I screwed it to the extruder arm with a M4 bolt and nut (M5 doesn’t fit because the strut is a bit too high).
Now it certainly can’t vibrate.
Hm, i had printed many versions of the clip and so i pull it manytimes on and off to the frame and there was no break. But it is possible thad the yellow PLA filament i use is a litle bit more elastic.
ABS fast cooling??? For ABS it is bether to cool down slow (Normaly i turn of the fan by printing ABS)
And yes i use the original Fan.
Normaly you do not need a bigger fan.
I did it at my own and use a 60 mm fan now.
the only Problem was that slic3r made a mistake and forgot some layers about 12mm from bottom, so I hat to fix it with some Filament manually, just out of the extruder.
I’m wondering, that you had so much trash at the side between the pipes. My printing was very smooth there.
I printed it at 0.2mm Layer with 0.5 mm extruder.
I want to have more windspeed by printing ABS, to make longer bridges possible.
Thx for sharing this great duct. I never believed, that prining without support can result such a complex part.
by the way, black filament is also elastic enough
[quote=“Andrej”]
by the way, black filament is also elastic enough[/quote]
Well, white is not obviously …
I think, I’ll give it another try. The last one I made (thingiverse.com/thing:262352) was fine to make and I “soldered” the parts, but it cooled the hotend down fo 165° 
Indication that you positioned the nozzle wrong. Like in the description/picture stated you need to position the nozzle a little bit behind the extruder. If you position the nozzle just a few mm wrong it will cool down the extruder itself and not the outflowing PLA/ABS.
Check this Pictures and position the Nozzle like this
Can you tell me which model of a 60-mm fan you used? I bought one which only turns when the fan speed is 100% and stops otherwise—no way to make it turn at half speed, very frustrating. Any idea why?