I've lately been messing around with the 4 power pins on a couple of HDD motors. I've Noticed some people were having trouble with it 4 pin connection compaired to Miksoj's 3 pin motor. It's just a theory but i think each pin is connected to a specific electromagnet in the motor and in most cases 2 wires connected to it will only cause 2 magnets to lock on and hold the motor in place. I think the chip that originally was connected to the 4 pin motors have some kind of timed alternating current sent to power the magnets. I've noticed LyokoHaCK said he got a 4 pinned motor to work but ive tried every combo on 3 different hdd motors with no luck, just the common twitch.
o, and great job Miksoj, this was a cool idea.
Welcome to the forums BTW man ^_^