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You still have the files and list of parts for that @Pretzel
Honestly it needs a redesign to fit properly, as is it's uh, definitely forced in place by the power of screw tension currently. Got the arc of the goggles wrong but it was close enough that I couldn't be arsed to do a revision! 馃槀

For parts I used:
4x F16EA-03LLC /E Nidec Copal Electronics | Fans, Thermal Management | DigiKey
1x 2438 Keystone Electronics | Battery Products | DigiKey
1x https://www.pololu.com/product/2563
As well as some wire, JST connector, and a little printed regulator housing glued onto the battery box.

...And then of course the insane fan mount. Which is really the rug that brings the room together.

I can toss up the files on thingiverse with the caveat that it does work, but it's not nice about it, or I may just redesign so it's s drop fit. not sure.
 

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I'm really happy to see all these positive comments regarding exfog. I've chatted with the owner a few times and he seems like a genuinely nice person.

Also, I got immersed in wor the past couple days and haven't had the chance to test them out in my goggles. So I'm a little nervous going into a game on Saturday with an untested system. I should drag all that stuff out of my footlocker and try it tomorrow before I leave. lol
 

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The few guys on the team that have them seem to quite like them, I just prefer the system being goggle mounted cause less "stuff" to deal with.
I get that. On mine i have multiple adapters and tubes attached to my goggles and such. The main unit is attached to my vest.
 

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I run an ExFog on multiple eyepro setups. While it worked fine out of the box, I felt the plastic tube used for air distribution could use some refinement. Ended up designing/printing a diffuser that snaps in to the top vent ports of a Revision goggle. I don't even have to remove the stock foam, just add a small slit. The side above the goggle has a barb to press the stock ExFog tube over and the inside diffuser is 1mm x 18mm, centered over the eye. Even in the high summer humidity of the US south, my goggles never fog now.

I've handed out quite a few sets locally and, last I checked, all are still in use.
 

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Ended up designing/printing a diffuser
I've been thinking about doing something similar. My stock exfog worked flawlessly yesterday, but just sticking the tubes between the seal and my face was a bit awkward.. I'd like to make something that spreads our the airflow a little more, and better stabilizes the tubes to the goggles.
 

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On my first try I attached the tubes above the goggle and made small holes in it, so the air is distributed over the whole goggles, but it did'nt work. I chatted with the owner of exfog and he said, that the cold fresh air from the top collides the warm / humid air. The hot air is moving upwards. I had to attach the tubes on the side and never had a fogging issue again.

Last game (very wet) I played most of the game with the exfog shut down and when I had a small amount of fog, the lowest power setting kept the goggles clear.

A well designed diffuser might do it better, but the hot/humid air needs to leave to goggle and naturally exits through the top. So we would need a diffuser, that is connected to the bottom of the goggles or that diffuses the airflow on the sides.

Has anyone managed to get the exfog to be even more quiet? Its not annoying, but sometimes I hear the noise.
 

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Discussion Starter · #28 ·
well my home made version worked perfectly yesterday. This was my V2, the prototype worked for a few games in the morning then began to struggle as I got too hot. This pair then worked nicely. 2xAAA switch pack mounted on the back of the headband with velcro sewn in to the band.
18878
 

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I purchased ESS turbos but the fan was loud and just... solidly meh; it only mostly defogged me with my RX inserts. The wire was also breaking somewhere inside the strap and giving me intermittent connectivity; which was really annoying.

So... a bit of CAD and 3D printing, 4 micro fans, a 2x AA housing (waterproof with push button switch), and a 3v voltage regulator later... Presenting the ESS Ultrafans.

I've had fogging issues exactly once since building these... and that's because the wire broke off the regulator mid game (doh). Fixed and reinforced with no issues or fog since. 馃榿
View attachment 18713
Hey Pretzel,

I'm creating a similar set of fans for my goggles and I came across the picture you posted 7 months ago on your set up. I was wondering if you still have that 3d file and if you'd be willing to share it. Your set up looks tremendously clean and I'd love to see what you did so I can model out a similar one for my set up. I imagine our goggles have slightly different curves and my fans might have different diameters but your idea is brilliant and I'm sure I could edit the file to fit my project.

Sincerely,
Lane
 

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Hey Pretzel,

I'm creating a similar set of fans for my goggles and I came across the picture you posted 7 months ago on your set up. I was wondering if you still have that 3d file and if you'd be willing to share it. Your set up looks tremendously clean and I'd love to see what you did so I can model out a similar one for my set up. I imagine our goggles have slightly different curves and my fans might have different diameters but your idea is brilliant and I'm sure I could edit the file to fit my project.

Sincerely,
Lane
If anyone is interested, I've been putting this together. Its just a test print atm and I'll edit it further when my fans come in, but this is what I'm working with right now. Obviously it is entirely based off Pretzel's design. The fit is for 20x20x10 mm fans. Just email me to get access. This form isn't allowing me to put up a stl file.
 

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You don鈥檛 need a ventilation system, just goggles with loads of vents all the way around, the humid air will naturally pass through the vents鈥t鈥檚 not as complex a problem as we think

These are my mountain bike smith goggles that never fog

Helmet Sports equipment Sports gear Motorcycle helmet Motorcycle accessories

Helmet Grille Automotive lighting Motor vehicle Hood
 

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You don鈥檛 need a ventilation system, just goggles with loads of vents all the way around, the humid air will naturally pass through the vents鈥t鈥檚 not as complex a problem as we think
While moving, it's all you need. The issues tend to arise when you stop moving, like which happens a lot in airsoft. Taking cover, trying to not be spotted, being out of breath :D all reasons to stop, and typically when the fog sets in.

Personally I pulled the small fan out of some cheap ess turbofan clones (which have poor lenses), and stuck it into the top of a pair of valken tangos with the thermal lens. Even with a hood and face covering, I just don't fog, even when sitting still in a bush.
 

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Would love a guide on this, I have ESS too, I was wrong with my thoughts regarding needing only vents as on the weekend I tried 3 pairs of goggles, the most expensive were the blueye SOS supercell which are 180usd and all 3 fogged! It was better when I was moving but it was clear that air has to pass through at all times when your still especially鈥.the main thing that made a difference was removing my helmet that had no vents and using a breathable mesh cap instead.

So my plan is to use a cap and fan goggles for when I鈥檓 still or they start stealing, otherwise shouldn鈥檛 need them on hopefully , I will also take brightsparkle shine or ex fog next time also just in case
 

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Just a note. I have owned about 40 -50 different pairs of goggles. From ESS to Revision and nothing was as good as the FMA fan goggles. And the FMA goggles last a long time and they work.
 
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