A friend asked that I post how to wire up the computer fan so here it is.
It is very simple to wire this up however it may take a little trial and error to fine the right size power supply. I found one that was used for recharging a house rechargeable phone. Before you get to worried about the electric wiring you should know that the power supply is a low voltage and won't "shock" you easily and certainly would not hurt you. Your power supply should be in the neighborhood of 9 - 12 volts. Make sure the power supply is UNPLUGGED and cut the wire in half leaving as much wire on the power supply as possible. You will see two wires inside the insulation. Take a knife and separate them about 2 inches and then bare about the first 1/2" of each wire. Your power supply is ready to attach.
Next get your computer fan. It will have a plug on the end. You need to cut that plug off leaving as much wire on the fan as possible. Computer fans are different; Some have 2 wires and some have 3 wires. If yours has three wires don't worry it is simple to figure out. Three wires just means that it is two speed. You will want to run it on low speed for your incubator. Trim the insulation off all three wires and test it. Test it by connecting the two wires on the power supply to two of the wires on the fan. Don't let any of the pairs touch ... then plug it in but unplug it quickly. If the fan does not work try it a different way. If the fan runs then try other combinations until you determine which is the lowest speed. It is low voltage and won't hurt wiring it wrong for a few seconds. Just try it and unplug it quickly. For mine it was the white and red wire that gave me the right configuration.
Mount your fan with plenty room behind the fan for it to pull air through from behind. I found a little bracket and mounted mine out away from the sides. Of course you want to mounted to the top so you can remove all the wired parts as you remove the top. Find a hole for your wirse and use a couple wire nuts to connect up your wires and you are done.
Im not the best at explaining so feel free to ask questions if I was not clear.
Mike
It is very simple to wire this up however it may take a little trial and error to fine the right size power supply. I found one that was used for recharging a house rechargeable phone. Before you get to worried about the electric wiring you should know that the power supply is a low voltage and won't "shock" you easily and certainly would not hurt you. Your power supply should be in the neighborhood of 9 - 12 volts. Make sure the power supply is UNPLUGGED and cut the wire in half leaving as much wire on the power supply as possible. You will see two wires inside the insulation. Take a knife and separate them about 2 inches and then bare about the first 1/2" of each wire. Your power supply is ready to attach.
Next get your computer fan. It will have a plug on the end. You need to cut that plug off leaving as much wire on the fan as possible. Computer fans are different; Some have 2 wires and some have 3 wires. If yours has three wires don't worry it is simple to figure out. Three wires just means that it is two speed. You will want to run it on low speed for your incubator. Trim the insulation off all three wires and test it. Test it by connecting the two wires on the power supply to two of the wires on the fan. Don't let any of the pairs touch ... then plug it in but unplug it quickly. If the fan does not work try it a different way. If the fan runs then try other combinations until you determine which is the lowest speed. It is low voltage and won't hurt wiring it wrong for a few seconds. Just try it and unplug it quickly. For mine it was the white and red wire that gave me the right configuration.
Mount your fan with plenty room behind the fan for it to pull air through from behind. I found a little bracket and mounted mine out away from the sides. Of course you want to mounted to the top so you can remove all the wired parts as you remove the top. Find a hole for your wirse and use a couple wire nuts to connect up your wires and you are done.
Im not the best at explaining so feel free to ask questions if I was not clear.
Mike
