So, your hand is getting a little warm while playing or surfing the net? This little mod could help you. The basic function is somewhat similar to the device in bowling alleys where you can dry you hands and the bowling ball. Lets try out if this idea works :)

Mouse, like every other rodent, works with 5 volts. The logical choice for the fan would be from the chipset or from the video card with active cooling. So lets find one.

Take off the two little screws that are holding the heatsink and the fan together. Then take your pliers and cut the fan out of it's frame.

I chose my old Microsoft ps2 mouse for the mod. It's rather big and roomy, makes the installation a lot easier. Picture shows the first tries to fit the fan inside.

The idea is to get the air flowing against the player's palm. We need to get some air somewhere so I made a few holes to the side of the mouse to be used as an intake. You can also drill a hole for a switch if you like to add one. Could be useful if you want to turn this thing off :)
After a while, nice set of holes. Not quite symmetrical but should work.
Made a little platform with a rubber pad. You can use a nut, cork from a bottle etc. This is to ensure that the blades of the fan doesn't hit the case of the mouse.
Some instant glue, few solders and you are ready to test this. Just take that +5 volts anywhere you can find it. Best place to find is to take it straight from the ps2 cord. Other good place to look is the logic circuit. I took it there. The method used is described in LogoMouse article.
Ready to be tested... And it works. :) There is a noticable breeze coming out of the mouse. For the optimal performance you should try to make more or bigger holes than I did. There is too much material blocking the best air flow.


This kind of mod this time. Really weird mod but hey, it works, honestly. :) At least now you can demonstrate your great sense of style to you friends when you make this mod. Everybody should have one... maybe not, but that doesn't mean you shouldn't ;)

Questions, comments etc?
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Finnish version 07.08.2001, translated to English 17.12.2001 - ©Japala

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