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Fan Gill Grill Mod, Testing Phase. What do you guys think?

post #1 of 13
Thread Starter 
Hey guys. I'm making a gill type of fan grill specifically made for top exhaust ports on cases. Normal fan grills are great, but they allow anything going DOWN to potentially enter the case through these holes. So with these gills, which will be more closely placed together, prevent things from entering, while at the same time letting air in. ALSO, they will be 100% closed when the computer is off so that DUST cannot settle down into the fan holes like normal fan grills allow. Here is a quick video of a test, just with a paper model I made.

http://www.youtube.com/watch?v=l8guXLiYk0o

The airflow opens the gills, and the lack of airflow closes them. The finished product will have the gills arranged so they will tile over each other more, and be constructed out of thin black plastic so they look better..
post #2 of 13
It will work and a good idea. The only thing concerning me is the wait of the material that will be used in the final product and the how strong the fans will be. If the material is to heavy a low rpm fan may have a tough time pushing the flaps up. I know ac floor and ceiling registry do the same thing but you need to manually open and close them. Looked forward to some early mock ups with some plastic or graphite.
post #3 of 13
Sounds like a cool idea. Would be interested in seeing a more finalized idea but I understand its a prototype. And yeah having the tiles overlap would be a better setup for more airflow because there would be no cross beam support like in the video. Kinda reminds me of scale armor and such. Like Lights said, making the material light enough, strong enough, and cheap enough may cause some problems. But thats where you prove me wrong thumb.gif

Subbing because I like the concept
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Bubble Bee Tuna
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post #4 of 13
Doesn't the nzxt switch 810 have something on the top where you can manually close the top?
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post #5 of 13
Thread Starter 
Okay guys. Video of Rev 2 prototype is being uploaded. While that is happening, I'm going to type this out and explain what the video shows.

Material has been upgrade to a thin black plastic sheet. The hinges are just tape, and that will be upgrade as well to something more pleasing to the eye and not as temporary.
I have changed the layout of the "gills" to flow better with the air, therefore, producing WAY more force on the flaps, thus allowing me to use a thicker material. Who knows, in the end, it might end up looking
even cooler than the first one. The airflow is SO strong, that the flaps actually open up to the point where they flap backwards and dont close back up, so I had to simply place something to stop them from opening up too far, the fan grill at the top. Note this fan grill is ONLY there to STOP the flaps, and won't be there in the final product. I will have to figure out a better way to stop the flaps from opening up past a 90 degree angle. Will edit this post asap and link the new video.

VIDEO: http://www.youtube.com/watch?v=TYOZiQmoE28
Edited by alext72888 - 2/15/13 at 11:00am
post #6 of 13
Subscribed just to see how the final project looks. I'm very tempted to steal this idea for my computer, although I barely even have a layer of dust in it after 5 months of minimal cleaning.
post #7 of 13
I like your new approach on this. Very neat design and should work decent on single fans mounted horizontally. But I like the idea of having something to cover all 3 fans on my 360 which is mounted up top. I think your first idea would be great for this, that way they could cover a lot larger area. My idea would to be implement something like this, which is to a normal damper



The black area is obviously a lightweight plastic, blue being a axle or pivot point, and green being a weighted spot to help assist the opening of the flap so you dont have to have such powerful airflow
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post #8 of 13
I would shift the point of rotation to about 2/3 of the way along the slats, and set them away slightly. The result will be that the slats not only pivot, but also raise up slightly. I would look into using a small DC motor to drive the slats open. Have them counterweighted or spring loaded to drive themselves closed when power is removed.

And the top on the Switch 810 is the worst piece of crap I've ever seen from that company. The case is beautiful, but the tops only open 50% at best. Terrible for airflow. I have one. It's the only thing I don't like. It will be getting modded.
post #9 of 13
great idea man hope it works out for you smile.gif
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post #10 of 13
Thread Starter 
goodtobeking & TLHarrell, I understand your approach to this, and both ideas would work yes, but there are a few goals that I need to achieve with this mod.

1. Function. Number one is block dust and not block airflow. This comes over everything.
2. Simplicity & Price. Must be simple, and cheap, so others can make it too!
3. Looks cool. Should look cool.

Those three items must be in that order. When we put price and simplicity low in the list, we end up with motors, weights, and something that costs too much and takes way too long to make.

I have a blueprint for the final product in my head, its very easy to make. I work 70 hours a week so when I get the chance to make it this week or next week I'll make a new thread for it. It's based off of my last design. I'll do a massive write up for it, AND show you how easily you can make your own as well.
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