This might be the final form. I can’t think of any more ducting that can be added to improve airflow.

36 Comments

  1. Morall_tach

    I feel like the big CPU duct is blocking the hot exhaust from the GPU from escaping.

  2. Doesnt the “front” fan on the actual gpu blow down so it’d be somewhat be fighting the extra fan if on? I definitely love the idea of ducts.

  3. dev1anceON3

    I think u actually block exhaust from GPU by CPU Cooler and that plastic duct – air always goes easiest way, so from bottom to top

  4. TheLegendD4RK

    This is like someone who just got a 3D printer and want to print everything!

  5. Prodigy_of_Bobo

    Quality. Glad to see the project is panning out. I gather some people aren’t getting it but the temps speak for themselves. Does it reduce noise at all by any chance?

  6. Nice-Ferret-3067

    Quite impressive, but in my mind, unnecessary. I am glad you’ve had a project!

  7. HelaPuff2020

    Would love a proper before/after temp comparison

  8. Suitable_Divide2816

    Since you went HAM, you should have also channeled the top front fan into one of the two runs as it is now rendered basically useless. It would be cool to see this concept with the H6.

  9. Alex35143

    What are before and after temps? This is amazing

  10. _JudgeDoom_

    This is really cool. Seems like a lot of people here don’t have a clue about physics or thermodynamics for that matter. I like the way everything looks tucked real nice, great job. 👏

  11. ApacheAttackChopperQ

    Nice work. Like opening the hood/bonnet to see the engine on any modern car.

  12. 420headshotsniper69

    I just have a big very air flow friendly case that move a ton of air. mATX fractal torrent.

  13. rodimusprime88

    So the only thing left “needing” cooling is the mobo. Maybe add some walls to the CPU duct to deflect air from the top front fan towards the inside of the case/mobo?

  14. I love it! Reminds me of OEM’s that had a CPU duct to vent via the PSU exhaust (Gateway had them during the P3 days).

    If I had a 3D printer, I would have tried making a duct for my old 990FX VRM’s, those suckers ran in the 90c range under load!

  15. TrixriT544

    I’m just waiting for you to 3D print an exhaust pipe all the way out of your home like a laundry exhaust

  16. PointDefence

    please tell me you’re gonna overclock

  17. Something to consider is that if you restrict the airflow path of fans too much you can end up causing them to just throw air every which way instead of in the direction that they should.

    I had a 50W Delta fan from a HP server that I was going to mod into a air duster but even with a really long tapered nozzle the fan wouldn’t actually push air through the constriction and instead just created a whole lot of turbulence.

    That said, if you are bored and have access to the full suite of Autodesk products you could actually model the airflow in your system using CFD. You should even be able to calculate the cooling potential of the air flow over the VRMs and other passively cooled components when taking into account the heat pushed into the system via the passthrough fan on the GPU.

  18. Odyssey_One

    If you really want to min-max airflow, then depending on the material of the printed parts, consider acetone smoothing.

  19. zakkwaldo

    make the top front and front top fans got 2-to-1 into the cpu cooler. the rear two fans will exhaust things fine without the front top fan acting as a cold intake. because each component has individual intakes, the ambient temp really doesn’t matter as it’s air is never passing through either of them.

  20. Exmormoneer

    Those print jobs look great, what printer do you use?

  21. RoleCode

    Would it be better if no mesh at the bottom, so no air can escape?

  22. dan_bodine

    Is there a opening for the front top intake to push air into the cpu cooler

  23. L0veToReddit

    Temp decreases by 1 degree

    It’s not much but it’s honest work

  24. thetradelegend

    There’s gonna be a hot pocket below the big duct, the top intake will hit the duct and flow down and the GPU fan is blowing up into it and both streams have nowhere to go.

  25. Retoru45

    Is it 2004? I can’t believe someone is actually putting plastic ducting in their PC. What a world we live in.

  26. Uniquorn2077

    We need back to back results because reasons.

  27. All that work and “engineering” to just ignore the existence of RAM or the power modules on the actual motherboard. You know the stuff that fans also happen to push air atop in a normal usecase.

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