cheap generator

[miloszlaw]

Sorry for my english 
Inspired by windbelt generator http://http://www.instructables.com/id/HOW-TO-build-cheap-VHS-tape-WINDBELT-generator/
i came up with a generator very cheap to build and maby lead to OU?
Two magnets repel each other. If you move between steel plaque, they come closer. Thus create vibrations low effort.
Does anyone else have the tools and some time to do such a test device?

[deslomeslager]

Tried to build it, but the magnets (either one of them) was being dragged to much to the iron. And if I take the magnets further apart, the movements are to small to be used for generating energy. Also the magnets did create a drag on the iron.

Perhaps somebody else likes to replicate?
It is not that much work . . .

[DreamThinkBuild]

Hi Miloszlaw,

I tried with a thin transformer laminate but it had to much pull, sticking, or not enough.

I played around with some other parts and found that if you get those large rubber bands that holds broccoli together and place two cylinder magnets(.5" diameter) in the middle worked really good when passing a long (1") magnet near it. When the band is taut it will vibrate for a good 2-3 seconds by just swiping the magnet past once. Using the long magnet I measured a distance of about 4cm while still being able to effect the magnets which is pretty far, so loading would be minimal.

One possibility is placing a drive magnet in the center of the rubber band then the generator magnet near the end and have a small motor with just one long magnet on a wheel to vibrate the drive magnet each time it passes.