Absolutely Raps

We have to have pole switching, whether it be mechanical or electrical. Of course electrical is the easiest and takes little or no power to accomplish, but so far, this is the easiest way that I have found to get poles switching with permanent magnets. I believe the key will be in finding the easiest way to pole switch while using the least amount of motion and energy to do so. Thats what this project is all about. =]

When you watch vid 1 and 2, what is happening is when the stator mag is centered, there will be equal amounts of N and S fields to the plane of the rotor, so there is no affect on the rotor. But when we turn the stator just a bit, vertical fields change, and as the rotor magnets pole are in a vertical direction, this wil cause an attract or repel on the rotor. In this case we are utilizing both sides of the magnets always, so there is always a positive attract and repel on the rotor by each stator mag, other than the one being switched while it is centered during the switch.
Mind you, the stator does take energy to switch. And it is quite close to the same amount of force being applied by the whole of the other mags pushing and pulling the rotor in motion. But vid 3 is something I played with for quite some time to make sure there is enough from the others to push through the 1.

Mags

Mags

Just some things to think about from my experience, so you dont have to work it out for your selves.
Below is a vid made in Cinema 4D that I used to get the cam right before I made it.
The thing with the cam, to get more than 4 switches per per stator per revolution would be difficult. Even 4 would be tight. If the rotor just had 2 mags and many stators, the cam forks would have to be thin and layered at the cam itself and kept from rubbing to avoid friction. But there isnt enough force with 1 opposite rotor mag to push the other through the switch. So I believe more mags on the perimeter to push the 1 through is the way to go.

All of this is just to tell that the way that I have designed the switching has been well thought out as to doing it with the greatest of ease, simple and modular, modular in that if there is a problem with a mech, it is easily removed and repaired without a big tear down.

Mags

Raps
Too much friction.  The cam is ridding on the fork all of the time, and so are gears. In my latching version only 1 stator is making any contact with the rotor at any time. That is a lot of friction reduction compared to cams and gears. Ive been through all that. =] There may be an easier way. But even if it were a cam in the center of the rotor, the amount of energy from the rotor to the stator will be the same to get it to move. Been there done that.
Also when the rotor HITS the half moon of the stator, that impulse helps reduce the amount of energy to turn the stator. =]

Mags

Hi Magluvin, i like the concept.

But, ye, gears suck !

I couldn't view your Cinema 4d .avi, even though i have klite codec pack latest installed


Gary.

Deep

Jet Audio will play it and its free.

Mags

I am modelling pic2.jpg in FEM3D - in all varriants of magnet and traektories - such as elleptical gear - its full moments ballanse ( summa of moments =0)

Jonifer
Did you read that 2 of the stator magnets are not in the proper phase? If you were to look at it as a clock from this view, the stators at 10 oclock and 4 oclock should be 90 deg from the way they are sitting with the poles aiming up and down. I still would like to see your modeling. I looked at Fem3d and Im not sure you can get a truly valid score on this one. But I think everyone would be interested to see what you have done. Thanks for the interest in doing so.

Mags