Instructables

Step 1: Parts & Tools.

Picture of Parts & Tools.
You will need:

a plank of wood (anything works. Ply, MDF, whatever you have lying around)
2 fans (you can use more if necessary)
A Switch (I used a fan controller because i was going to make them switch on and off individually, but i
decided against it. i still used it though. Makes it look cool. any SPST will work)
A 10~14 v supply (DC, whatever amps your fans are.)
Wire
Heat shrink
Solder


Tools:
Soldering Iron
Wire Cutters
Drill
Drill Bits
Flat Blade screwdriver
Phillips Screwdriver

Step 2: Marking Everything.

Mark the holes of your fans & switch. when you do, look for a symbol on the fan. it will show rotation & air flow direction. these will help when marking stuff out.

Step 3: Modding the switch

This step is only required if you are using the 3 speed switch. if you are. follow the instructions. if not, continue on.

Pull the knob off.
Then, remove all the stuff coming from the back of the switch. You should end up with something like below. if not, I can't help you.

You will have Common (or C) 1 (or M100) 2 and 3.

Step 4: Drill Vent holes

I was unsure what to do here. If you have a finger guard for the fans, then cut out a big hole. if not, I just drilled lots of 5.5 mm holes. Works fine.

Afterwards, attach the switch.
 
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Arbitror4 years ago
Oh! I now that round fan! It's a Pentium 3 fan, with the square frame cut off. To be exact, model 0925-12LMB.


If I were you, I would make the air holes way bigger. Currently, I use a $20, 20cm fan from Costco for soldering.
your 13 too! im in Australia too and find most usa prices shit :-\
edfel015 years ago
do u have to use a heatsink? wat do they llok like? good instructible!
iceclipper5 years ago
Filters for aquariums are carbon and washable. Might be just the thing for this. I was looking for a vacuum to clean dust from PCs when I open them. I think I will add a small hose to the intake side of this for what I need. Thank you!
Odin496 years ago
So where does the toxic air end up? Where did you position the fans and how did you dump the toxic air to the outside? I need an extractor like this one but would like the extra info, it would help a lot.
Da_Fudge (author)  Odin496 years ago
It just removes the air from out of my face, and blows it upwards, where it disperses.
Would be better if it had a filter. The particles are still in the air, and will settle on surfaces eventually.
dude3007 years ago
what power supply did you use
Da_Fudge (author)  dude3006 years ago
an old plugpack I had lying around.
JoelSimpson7 years ago
I really hate it when I see people suggest a "go buy it instead" solution, but this has worked SO well that I feel like I have to share. I apologize to everyone in advance. I've tried fans, but they only blow the fumes around the room and ducts to the outside aren't usually practical or convenient. I stumbled upon a much better and reasonably inexpensive off the shelf solution. A HEPA air filter. Flux fumes in, clean air out. My wife can't even tell when I've been soldering anymore. You can get a small desktop unit for less than $50, ( I'm using a Holmes HAP242-UC) The only down side I've found so far is that it doesn't have very good reach. You have to solder within 4 or 5 inches...or use a VERY weak fan to blow the fumes toward the filter.
Da_Fudge (author)  JoelSimpson7 years ago
"I really hate it when I see people suggest a "go buy it instead" solution

I know. Those HEPA filters aren't avavilable here in Australia. And the price sounds a bit out of reach for a 13-year old like me.
kawouter7 years ago
Hi, I like your idea. I use something similar to this when i'm soldering, but i think this idea can preform better. For example, do not dril tiny vent holes, but just make a hole as big as the fan. Also, you have a chance putting your fingers or soldering iron in the fans, maybe you could place them at the other side of the panel , and if you use bigger holes you could buy a fanguard for example. But the idea itself is great.
Da_Fudge (author)  kawouter7 years ago
Yeah thanks for the comments. It was a quick design and the only reason I didn't use one big vent hole was because I didn't have a fan guard. I originally mounted them on the other side but it didn't suck as well. also, I had all of those parts and I didn't want to go buy a fan guard. next time I will put a carbon filter on. Thanks again for the constructive criticism.
pixelrider7 years ago
1. Make one big hole instead of those little holes - air flow will be better 2. In stores you can buy filters with "active carbon" - it looks like thin, black sponge - place it behind fans - it will clear the air - smell killer. 3. Make a stand from solid wires, or hang it above your workplace - the smoke usualy goes up :) [possibly I will make an instructable about my solution...]