Make a Fog Chiller for $10

Step 6 Make the lower chamber

1. Refer to step two to cut a hole near the bottom of the cooler, on one of the short sides. It's a good idea to use the 1.5" PVC coupling as a guide.
2. Cut another hole of the same diameter directly opposite this one (on the other side of the cooler)
3. Place the fan over the hole, so that it blows into the box, and the wires are facing up. You may need to test it with the 9v battery. Poke holes through the Styrofoam where the mounting holes of the fan are.
4. Thread a long piece of string through one of the mounting holes, and into the cooler.
5. Finish mounting the fan by "sewing" it onto the cooler. Tie off the string when finished.
6. If you have a 9v battery clip, wire up the fan directly to the clip. A switch is optional, since it is easy enough to just disconnect the battery.

Comments

[neardood]

I wouldnt use a 9v battery with a 12v fan. You'l wear out the battery real quick and the fanwill under-perform. Try useing a proper 12V supply or battery

[frollard]

I wouldnt worry about under-voltage on a cpu fan that much; they are pretty tolerant, and simply (as you say) lose speed. If you underpower it too much, it will just stop. I built the other one - super cheap version, and I love the results. I imagine this has a very similar effect, but a constant flow - the fanless one 'billows' more.

[neardood]

you're battery is gonna die in about half aan hour if you left it on

[munchman]

You could replace the 9v with a variable power supply

[neardood]

good idea though, i'd make one of them if I had a fog machine