Picture of Mini Hovercraft From a Dead Computer!
Hi! this will be my entry for the dead computer contest. In this instructable I will show you how to make a small hovercraft using parts from a dead desktop PC!

Step 1: Step 1- Parts & Tools


>A 12 volt, 0.14 amp cooling fan
>Fan pipe thingy (in the picture it is the bottom black round thing). or a plastic can of equal diameter to the fan. (has to be at least 3 inches deep).
>erector set pieces (optional)
>4 9-volt battery clips
>4 9-volt batteries
>electrical tape


>Swiss-army knife
>soldering iron (or tin foil and even more electrical tape)

darrenhall2 years ago
Now that's cool - I love folks who make stuff from trash or revamp broken things.

Big respect.

azrathud3 years ago
Attach the batteries in series to create a higher voltage. When you attach the batteries in parallel you increase the amperage but the voltage is the same as one battery. see http://www.kpsec.freeuk.com/voltage.htm
martzsam (author)  azrathud3 years ago
oops. I forgot this instructable was even here. I was thinking of deleting it because it is so bad.
The creation itself isn't so bad, but your explanation(pictures / video) is a little lacking.
wamper954 years ago
what kinada fan is that?
martzsam (author)  wamper954 years ago
It's a fan ripped from an old computer. I've since found that either styrofoam plates or a disposable pie pan work great for hovercraft. The styrofoam is cool because you can shape it into cool crafts. Just make sure you run the fan at the minimum twice its nominal voltage.
wamper954 years ago
i really want to know so that i can make one but with Styrofoam plates.
akeeksha4 years ago
can we replace the 9 volt clips with any wire?
martzsam (author)  akeeksha4 years ago
If you have to you can solder the wires straight to the battery...

BUT- there is a specific danger to soldering directly to batteries. Batteries will heat up faster than you think and EXPLODE. I recommend just buying the 9 volt clips at radioshack for 3 dollars.

does both old desktop and or laptop or just one

martzsam (author)  Doctor Freeman5 years ago
What are u trying to say?
what im trying to say is do you have to use a desktop, laptop or can you use both
martzsam (author)  Doctor Freeman5 years ago
Oh, i see. I havent used one from a laptop, so I wouldnt know. I imagine u could.
eulaliaaaa!5 years ago
This looks like something from an old Macgyver episode.
martzsam (author)  eulaliaaaa!5 years ago
Why do you say that?
Because there was this one episode where he was trapped in this top-secret-underground-base-type-thing and that looks like the little laser-shooting-heat-seeking-security-robots.
martzsam (author)  eulaliaaaa!5 years ago
oh. cool. Go Macgyver!
Mudbud5 years ago
 This is awesome! But I dont have that round top thingy. What could I use to replace that? Anyyway Its still cool
martzsam (author)  Mudbud5 years ago
the round top thingy is just an extra bit to keep your fingers from being sliced off and is totally optional.
Mudbud martzsam5 years ago
 oh ok thanks!!  I'm making one now!!!.............
martzsam (author)  Mudbud5 years ago
have fun! and watch your fingers...
Misac-kun5 years ago
With a video, you will surely get some more votes
I'm almost --- no, I am certain that that fan, or any generic computer fan won't be able to move enough air to lift itself. Though I am all for being proven wrong, a video should be in order.
I think it might work; hovercrafts use compression, not air displacement, to achieve lift, so not much power is needed. I'd like to see a video.
martzsam (author)  JamesRPatrick5 years ago
Your right. the hovercraft I built uses compression of the air to lift itself. I have to run the fan at 36 volts so the air doesn't come back out of the top.
 I have seen a game of air hockey that lifts the ball with a small fan like this computers uses...so nothing suprise me anymore
martzsam (author)  The Ideanator5 years ago
keep in mind the fan is being run at 36 volts. that is way more than usual. It burns out the motor after a while. I'll try and post a video as soon as possible.
kelseymh5 years ago
You need pictures on the rest of your steps.  Preferably pictures showing the intermediate steps in assembly.  Separating Step 3 into multiple steps, each one showing one actual step of the process.  Spelling and punctuation are nice things to include so people can understand what you mean.
Plus, a video of it running would be good.