Lenzless rotation using radially (update: axially works too) magnetized PM.

[Creativity]

i am glad u r buildng it!nice..fast idea followed by fast experimentation.We should all do more like this.If i got it right in the last design u can wind up the stator with wire so it will look like toroidal coil on a magnet,no?

[broli]

Below is another design of this. It's pretty simple. Do you guys think the reason of rotation is correct?

[Kator01]

Hi all,

Alert !!!

If you take apart the magnetron never break the ceramic pin at the front which extends into resonance chamber.

This ceramic contains beryllium-oxide which is the most toxic substance ever used in electronics.

Inhaling of dust or even touching it and bringing this stuff in contact with small open    skin-infringements endangers your life !

Be very careful

Regards

Kator01

[broli]

Thanks for letting me know Kator! Something so dangerous to human health shouldn't be used in consumer technology, but I guess profit comes before concern.

But I was changing my plan anyway and this convinced me even further. I found that speaker magnets are nothing bu ring magnets. I took a part the magnetic case and found ring magnets in them. In a few days I'm going to go to a recyling center to get myself a very large broken speaker and salvage the magnets out of it. It's a disgrace that a ring magnet as big as my palm costs around 20 EURO while every kind of big sized speaker has them.

[Paul-R]

Thanks for letting me know Kator! Something so dangerous to human health shouldn't be used in consumer technology, but I guess profit comes before concern.

But I was changing my plan anyway and this convinced me even further. I found that speaker magnets are nothing bu ring magnets. I took a part the magnetic case and found ring magnets in them. In a few days I'm going to go to a recyling center to get myself a very large broken speaker and salvage the magnets out of it. It's a disgrace that a ring magnet as big as my palm costs around 20 EURO while every kind of big sized speaker has them.

Speaker magnets often have a round slot into which the voice coil is put. The magnetism
is intended to be ACROSS this slot, rather than in/out of the device.