Instructables

Step 7: Vibrating motors

Picture of Vibrating motors
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Turn your fans into vibrating motors by cutting off some of the fan blades.

You should try to avoid making them evenly symmetrical by cutting off the fan blades in a different pattern on each fan. This will give it a little bit more of a unique mobility.
 
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ceeceemerto3 years ago
what happens if you only use one fan instead of two fans?
randofo (author)  ceeceemerto3 years ago
Two fans create competing vibration patterns. It will still work with one fan, there will just be less of a dynamic vibration/motion.
robert0joe4 years ago
Can I just use the PS2 controller vibrators?
randofo (author)  robert0joe4 years ago
I suppose so, with mildly varying results.