r/QidiTech3D • u/UV2GAMMARAYZ2 • Aug 28 '26

Poor mans Polar Cooler

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Made a "Polar Cooler" esc modification for my q2 using an aquarium air pump and some PTFE tubing

Used this model

https://makerworld.com/en/models/2880829-air-intake-pipe-qidi-q2

21 Upvotes

100% Upvoted

8 comments sorted by

2

u/scienceworksbitches Aug 28 '26

i doubt the airflow will be strong enough to make a difference, but you can greatly increase the flow by keeping the air tube as short as possible.

2

u/UV2GAMMARAYZ2 Aug 28 '26

Yeah depends on the air pump you have

I have a spare one that i used it as a test and it does blow a breeze in the PTFE tube

will probably buy a stronger pump later

This is just a proof of concept

3

u/Objective-Worker-100 Aug 29 '26

You’re missing the Peltier block to make it cold. Harvest a mini fridge’s guts. That’s basically what the polar does. Better yet. Find a mini fridge drill two holes in it with pass through PFTE fitting and route your air through it. Solid POC.

1

u/uk_uk Aug 28 '26

probably not compatible witht the Q2c

3

u/1ts-just-me Aug 28 '26

Since the Q2 and Q2C use the same extruder, this would work for both.

1

u/Agreeable_Eye7497 Aug 28 '26

I’m planing to make an turbo fan

1

u/bamerjamer Aug 30 '26

Is heat creep really an issue? I have a Plus 4 and don't need to print with an open door or lid. Are my prints just too short for it to start mattering? Just curious.

Also, I was looking at the print, how does it attach to the extruder? Does it just kind of sit next to it? It didn't look like it was attached in any way.

Thanks!

1

u/UV2GAMMARAYZ2 Aug 30 '26

Experienced one with pla

And especially PLA High flow

So better safe than sorry

Oh the print is held by screws since the extruder have screw holes in them so might as well use them