would this setup work?

[Raish]

You might need some mumetal shielding to get you out of a sticky spot.

Interesting, i thought there was no material to dampen a magnetic field ..

What effect does the mu-metal have exactly?
Could i just put mu-metal in the way of the magnets to stop them from pushing the rotor in the wrong direction like this:

Or would putting mu-metal anywhere near the magnets just lower the field strength everywhere equally?

[Low-Q]

Hi there!

1. There is no point in trying to directing or angle magnets - like you do with a watering can to controll the direction of the water.

2. A shield will just alter the path of magnetism. "Shielding" the stator magnets will also impact on the rotor magnets. Even if you weaken the magnetism on one side, both rotor and stator magnet will be attractive to that metal accordingly. So no net changes are made - at least weaken the repulsion in the right direction equally to the less repulsion in the wrong direction.
Using weaker magnets just make the magnets less workable, and that in turn will also force the rotor to a stop at the corresponding weaker sticky spot.

You setup will not work.

Br.

Vidar

[gyulasun]

@Raish

I think there is a threaded hole in the middle of such floppy hub and if you have a fitting screw into it, then you may "sandwich" the CD with a smaller hard paper disc onto the hub's surface.  You may also use hard paper disc instead of the CD if you wish to change diameter.
It would be better to use relatively long magnets at all places so that the opposite poles could well be further out from the interacting rotor-stator poles, you will certainly have more trouble with relatively short magnets.  On long magnet I mean say at least 3-4 centimeter, the cross section can be small, say 3-4 mm x 3-4 mm square or even cylinder shape.  Also, no need for Neodymium, ceramic/ferrite magnets are good for a start and cheaper.

I cannot say if your setup works or not (normally they do not) but one thing is sure: you can collect experience only by personal building. Introducing a soft magnetic material like a transformer laminate or mu-metal or a simple soft iron plate is a good idea and you have 3 variables: thickness (by layering), size of the plate (length and width) and the distances.  You may achieve a situation when the Z magnet coming towards the shield by momentum and not by attraction and will kick out when leaving the central line of an A magnet. This is not easy to achive and needs much tinkering at each sticky point.  I believe this,  I have not built your setup, sorry.

rgds,  Gyula

[molux]

@Raish,

Your setup look like à simple version of the biggest magnetic motor group called "Magnetic Wankel"
(Look here : http://www.overunity.com/index.php/topic,2451.0.html)

There are an equilibrum probleme from the magntic field.
If you find a good shield to cut the equilibrum, your right ! (Tell us here

It existe an other kind of solution, is to unbalence the equilibrum, like the Albert Michel Motor:
(Look here http://www.overunity.com/index.php?topic=2519.0)
The Eletric replication, put juste a little amount of power to cut the equilibrum at precise time

Have nice day

Molux

[nievesoliveras]

@all

Try this one.
http://de.youtube.com/watch?v=agReLN-tGQE&feature=channel
or
This one.
http://www.overunity.com/index.php?topic=4528.0

Jesus