Magnet Motor from Argentina, part2

[msurucu]

has anyone tried shield with torbay? craigy did, i know, but whoelse?

i think shields can create open gaps.

i think shields can be connected the rotor, before the sticky point.

[attack duck]

  Heres my lame attempt at a Torbay type motor.  I thought it would be a lot less
friction with the planets than lifting heavy stators up and down.  Magnets in the planet carriers are all oriented the same way.  Four magnets on rotor are N out, four on other
side are S out.  It rotates similiar to Craigys videos but still takes energy to turn.
When I take the rotor out, there is very little drag on the gears.  I already had the
base and planets from another project so all I had to make was the rotor. 
  With only 5 planets the action is a little rough.  I can easily add 5 more planets
and it would probably get very smooth.  Nothing magical going on here at this point!

                                             Glenn
 

[CLaNZeR]

Nice setup Glen

Excuse my open ramblings a moment 
I just had a thought regards this configuration and that is you can configure at what point the stator magnets align with the rotar magnets simply by lifting a pillar up, turning it a tooth or two and placing it back down.

I have always had this thought of pushing a magnet past the sticky point by using 2 or 3 magnets further behind the one that is stuck on the sticky point and your config might be the answer.

It is a difficult idea that is in my head and hard to explain, but imagine if you had 3 magnets in a row and the first magnet was approach another magnet in repulsion mode, then it would halt. But if the two magnets behind were passing through 2 other magnets and were on the repulsion cycle then this force would push the first magnet past the sticky point.
Like I said bit of wild idea but controlling it has always been a stumbling block in my mind, yet your configuration could be helpfull.

Anyways, well done, looks good

[Craigy]

yes Good work Glen, nice to see this thread is picking up steam again,

@Clanzer, I said 6 weeks ago..

I am awaiting parts , but i will try building a 8 horizontal shields.( Useing mumetal hard disk drive shield) The magnets would be fixed into the base and the rotor magnets would have their flux directed down over the fixed stator magnets in the base board.  The shields attached to linear bearings would then slide in from the side , horizontally. Thus i hope that when a shield is not in use it would have no effect on the rotor, so the rotor maintains its torque..
We Shall see..

Well i got involved in the steorn thing, so didn't do much with this configuration, but unlike the first attempt with shields i think it will stand a better chance of working since no shields will interfere with the rotor, that is untill that are meant to interfere with the rotor,
The linear bearings are not as easy to use as i imagined, you really need to put stops on the rails so that the carridge does not go shooting off the end lol. Then you can make use of the full 3cm of travel, my actuators ,  on the steorn thread did not need a big throw so the standard mounting holes had screws in them to limit the travel, here is another pic od a 3 magnet lema, all magnets have n facing up...The actuator will fall under its own wieght, which is amazing when you think of the effort you have to use to pry these magnets apart.

[CLaNZeR]

Good stuff Craigy

I like the idea of the horizontal slides and be good to see it all in place.

Know what you mean about waiting for parts to arrive, especially when coming from the states but hope to have the sliders by the time I am home next weekend and will upload some pictures.

My only concern is whether the 3cm of travel will be enough to move the magnets far enough away as I want to try 8 sliders vertically with magnets attached, but I do like the idea of the Lema's instead.

I still have this roll of Meta-Glass here and want to sandwich this inbetween some thin plexiglass to compare the shielding properties, it is a bit easier to shape rather than the heavy lump of mu from the hard drives I stripped.

Like yourself I have multi projects going on also and it is a case of flitting back and forth, but all good fun.

Again thanks for the tip on the rails, I will be carefull when they arrive as crawling around on my hands and knees trying to find little bearings is not my idea of fun LOL

Regards

Sean.