Lutec 1000 inventor speaks out !

[prometheus_effect]

Hi Vorg,

I suggest you checkout http://www.magnetsales.com/index.htm especially their design guide. It's a good reference.

Regards,
Prometheus_Effect

[rlm555339]

So it's better to not expose them to matching poles (n-n s-s), try to only use atracting poles (n-s) right? I take it switching poles is also what creates the eddies? So if it's setup so N poles only see South poles, both problems sould be avoided? Since they use such magnets in motors, there must be a way to prevent the edies.

The brushless disc type generator I built using 2" x 1" round neodymium magnets has 10 of them installed in a N - S - N - S manner on the 16" rotor.  During the experimenting I've done in this last year, I've subjected these magnets to high and low voltage pulses, AC and DC pulses, higher speeds and lower speeds past amorphous iron shot cores and #6 AWG coilwire.  It's been used as a dynamo and as a plain drivin generator with duty cycles as long as almost a day without stopping.   They've seen high amperages and heavy loading.

Let me be the first to assure everyone that there is absolutely NO sign of any weakening in these neo's.  They'll grab a wrench or screwdriver out of your hand in a heartbeat and keep it.    

What they haven't been subjected to is being dropped, banged, abused, excessive heating, or other stationary magnetic fields.  Also, I have NO IRON in the frame of the generator.

[prometheus_effect]

Hi Rlm555339,

That is as it should be. Have a look at the attached BH curves for a range of Neos and you will see that over most of the marnets useful range it's flux output is very flat and thus there will be little eddy current flow in the magnet. Also with a operating temp of 150deg C it will take a LOT of eddy currents to push the magnet's temp beyond that.

[TechStuf]

With Neos.....any impact strong enough to effect any noticeable degaussing would be beyond the material's breaking point anyway....

Stefan is correct about ferrite ceramic magnets....their uses, both separate and in contact with Neos is very useful.

There is a product called the 'battery doubler' which makes use of a small square of the much ballyhooed YT magnet material.  Suffice it to say that Neos are showing their age....(just not publicly as of yet).

Peace,

TS out

[Kysmett]

There is not a lot of information since the scooter came out.  Do you have any YT references?