Looking for print cooling solution for E3D V6

Hello!

I have been printing with a lot of different extruders and print cooling constructions. Mostly one-sided print coolings. While printing overhangs that are on the opposite side of the print fan, those become not very clean.
I tried several other fan duct cunstructions but never have been happy with their size (bulky) or overall performance.

So while scavanging the thingiverse repository (which is very tideous if you look for a specific thing that meets your criterias) I thought I write a REQUEST/SEARCH post on an "authentic" 3d printer community site which is reprap.org.

What I have tried so far:
My current extruder design [www.thingiverse.com]
Current cooling fan duct: [www.thingiverse.com]

I just printed this: [www.thingiverse.com]
But this is rather bulky IMHO.

I also like to use those 50mm radial fans as they are very quiet.

Any ideas? What do you use?
Do you know the droids I am looking for?

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Blog: Capotexl
Filament Factory - How to build your own cheap filament extruder
Frankenstein Laser Engraver
Make the world a better place

Compressed air, when it expands, cools down greatly.
Just open the valve on a scuba tank and watch it frost up.
A fine nozzle jeting compressed air will expand and cool close to print surface.
Could be very small next to extruder.

Even very low pressure drop cools a lot.

Putting a Peltier cooler on fan inlet can frost your polymer / plastic

Quote
cozmicray
Compressed air, when it expands, cools down greatly.
Just open the valve on a scuba tank and watch it frost up.
A fine nozzle jeting compressed air will expand and cool close to print surface.
Could be very small next to extruder.

Even very low pressure drop cools a lot.

Putting a Peltier cooler on fan inlet can frost your polymer / plastic

Not sure if spam or failed AI comment bot?

And I guess pulmonary frostbite must be a common accident in scuba diving...

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Blog: Capotexl
Filament Factory - How to build your own cheap filament extruder
Frankenstein Laser Engraver
Make the world a better place

Ah Slept thru Physics class?

When scuba diving with regulator on tank, air let out of tank slowly and warms up
in hose from first stage to second stage

Compressed air out of compressor colder than ambient.

At room temperature, all gases except hydrogen, helium and neon cool upon expansion
by the Joule–Thomson process; these three gases experience the same effect
but only at lower temperatures.

[en.wikipedia.org]

Propane bottle under your barbeque cools a lot during a cook session, expansion of propane.

Have you looked at the Berd Air approach?
[www.themakerhive.com]

I made my own, and then eventually converted to tusk approach that I read about at:
[www.sublimelayers.com]

Source for the parts I ordered:
Pump: [www.aliexpress.com] (ask for 12 or 24v)
Silicon tubing: [www.aliexpress.com]
Aluminium tubing: [www.amazon.com]

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Co-creator of the Zesty Nimble, worlds lightest direct drive extruder.
[zesty.tech]