Even lezen :
The negative power hook up will be delivered to the motor spindle from the ball bearings. Either insert a thin piece of contact wire between the bearing and the plastic, or solder a wire to the outside of the bearing casing. Don't solder to the top or inside casing of the bearing or it won't work. A resistor of appropriate strength should be attached to this point and soldered to the negative power terminal for the fan.
The positive power hook up will be delivered by a spring, or other type of brush type device to the edge of the metal magnet casing. How you set this up will depend on what you use. In our case we used a gold-plated leaf spring set so that it would ride along the edge of the metal magnet casing as the impeller rotates. This spring is connected directly to the positive power terminal by a short wire. Other possible hook ups could include braided wire for example. Whatever you use, it is important that it make continuous contact with the rim of the metal casing or the LED's will switch on and off as the impeller rotates. Chances are that a little tweaking to the magnet casing will get it to seat more evenly and improve the connectivity of the positive power hook up
<EDIT> Ik moet zelf beter lezen, dat bedoelde je niet, kun je het niet aan de draden zien ????</EDIT>
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