Ultimate PC Exhaust Fan

Ever wished your PC exhaust fan was just a little more powerful?

This shroud allows a Honda Accord (Euro) blower fan (Part Number 194000-1720) to be mounted in place of a standard 92mm case fan.

Power draw at full speed is around 250 watts, you'll want a brushed (not brushless) ESC, ideally with a BEC for your microcontroller, to control this. Unfortunately, the interface for that and for PC fan control are different, so you'll want some form of Arduino or other microcontroller as an intermediary. Power can be taken from your case power supply: 8 pin PCI-E connectors are rated for 150w, so you'll need two.

In some left-hand-drive markets, the part 194000-7402 may be available, which appears to be very similar, save for the fact that it has a different connector and spins in the opposite direction. I haven't checked in any great detail, so there may be other less obvious differences. If you are using this fan, you will need to mirror all 3D printed parts.

Pros:

• Can move more air than anything the boys from Noctua can sell you
• Allows easy connection to 4 inch/100mm ducting for exhaust system
• Watercooling? Unnecessary when you're changing the air in your case every half second. Cons:

• RGB not supported yet
• May overload your power supply

• Shrieks like a mad banshee Still not enough airflow for you? Consider Yale Zhang's brushless upgrade.

  Print Settings

Printer:

RepRap Fisher

Rafts:

Yes

No

Notes:

• Brim or rafts recommended for stability of segments 3-6.

There are some ambitious-but-possible bridges at the top of the outlet on segments 1 and 2,

Requires 75mm print bed radius and 130mm of height

All parts are designed to be printed in the supplied orientation, except the outlet, which should be printed with its flange at its base. Assembly

• Assemble segments by inserting them onto the fan's baseplate, it's a lot easier to fit them individually than as a whole.

• Three of the segments require M5 screws and nuts to hold them down.

• The holes connecting them require M3x12 (or longer) screws and nuts. Don't miss the one underneath segments 1 and 2.

• The adapter to fit to the PC then attaches on top, using M3x10 screws, no shorter or longer, and nuts.

• The outlet can then be fitted if desired, using M3x14 (or longer) screws and nuts.