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Old January 6th, 2010, 09:56   #1
rogue152003
 
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Join Date: Dec 2008
Location: St. Catharines, Ontario, Canada
De-Fogging Hat Mod for goggles and glasses!!!!

ok guys...here is a solution for those hot, humid days when your googles and glasses keep fogging up. I prefer to play with smaller glasses or goggles, can't stand the paintball stuff, so I came up with this mod and it works great!...plus it only costs about $15 not including the hat. I will list what you need and how to do it, pics will be at the end.

Here's what you need:

1) Baseball Hat - 1 .....cost is up to you
2) Computer Fan - 1 ..(I used a fan purchased from "The Source". It is a 12V DC, 0.09A fan...1.5" x 1.5" x 3/8" thick)...model# is: CFA124010MS....cost $10
3) 9v Battery case with on/off switch - 1 ...(purchased at "The Source" and on ebay)....cost $3
4) 9v Battery - 1 ...(will run this fan for around 30 hours continuose)
5) #8 x 3/4" automotive trim screws - 4 ....(from "Canadian Tire")...cost $1.50/set
6) Velcro Strapping - 1 box ...(purchased from "Canadian Tire")...cost$3

Here's the procedure:

1) Make a 1.5" diameter hole in the brim of the hat so that when the hat is on ur head the fan will sit just off of your forehead. Remove excees material on the underside of the brim so the fan will sit right on the brim plastic.
2) Drill 4 - 1/8" holes in the brim of the hat for the mounting holes on the fan.
3) Connect the wires from the 9v battery case to the fan...i use solder and heat shrink, but small electrical connectors work too, or i guess if you had too you could twist em and tape em...ur call.
4) Mount the fan to the underside of the hat brim using the #8 Screws....thread the screws into the fan housing slowly...take your time here or you might snap the fan case.
5) Make a slit in the hat trim ring inside the hat to run the wires through, i make the slit big enough to fit the 9v battery case through so that i can dissassemble the hat and wash it.
6)Attach the battery case to the size adjuster on the back of the hat using the velcro strapping. (I used tape in the pic..i hadn't bought the velcro yet...velcro works better..lol)
7)Run the wires inside the hat using the trim ring.

Now, when you wear the hat, and the goggles start to fog, you reach up, flick the switch, and the fan blows nice cold air at a surprising rate over and into the top of your goggles or glasses, de-fogging them almost instantly. This setup blows way more air than any paintball system i have used. This setup also doesn't weigh much and you wont even feel it on the hat when you are wearing it. Also, these fans are completely SILENT!!!, you will not be able to hear it running!

Hope this helps some of you, it works perfect for me....enjoy....
pm me if you have any other questions.

Here are the pics:
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Last edited by rogue152003; January 6th, 2010 at 10:04..
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