This is a nifty idea. But having high powered magnets next to the bearings can magnetize them. Ever see a bearing on a finger flick look like it had breaks and reverse just a little at the end of the spin. That can slow a bearing down quite a bit and help ruin a bearing. So my question is, is the magnets in this far enough away and not that powerful to cause damage? I’m not trying knock your product, just curious because i really like this idea and I’m really into magnets big time.
Can i ask where you get your magnets and or any info you have on them. If you want you can pm me the info. Strings wouldn’t get in the way of a magnetic field btw. Its the distance and gauss rating on the magnets that would be the deciding factor.