@ ClaNZeR   

Very nice construction!!!   I can hardly wait to see the cam in action...

Bill

Mark:

Jesus posted a sketch of this idea a page or two back.  2 drums synced by a rubber drive belt or other means.  I have never seen that tried before anywhere, it just might work.

Bill

It seems that the build up of speed of the wheel is key.   By looks of the track, I might think that 2 tracks in series having 2 SPOTS, the angle of the tracks would be more, causing more torque.
The reason there is pull on the wheel is the difference in how the magnets that are close to center of track and the ones that are closer to the outside. The wheel is being pulled in both directions, just stronger in one direction.

So by having 2 in series, the angle is changed more drastically, giving more torque, but now 2 sticky spots.

Now add 3 stators, with lifting cams (maybe mount the wheel axis vertical)  2 stators are always pulling while 1 gets lifted, adding to what is needed to lift rather than a single stator. 

Or maybe just more than 1 stator, without affecting each other   could be 4 , 5  or what ever.

Or another way may be to figure how to tension a spring, adding to the tension as the wheel is being torqued forward, Like charging a cap slowly and discharging it to lift the lever

One problem with the original in the vid, the stator is in attraction, and gravity pulling down on it, having more for the lever to accomplish. How about put that stator on the bottom and the wheel attracts it up to position and gravity helps the lever action to move the stator away, or even on the side where gravity has no effect.

Just thoughts

Mags

Could the V, or W, track work if it was possible to find a "weak" spot where a double shield could help a stator magnet to change polarity in order to repel and attract in the right moments? Maybe this would be another form of V track, but maybe it would be closer to a working one?

I ask because I have in a simulation found promising method to shield magnets. A way that makes the magnetic flux in two magnets, a moment totally independent of eachother. It's not a new discovery, but the shield are made as a double shield so the magnetism in two independent magnets doesn't share the same shield and magnetic path. Therefor these two magnets can for a moment "work alone" in order to to their own work (for example swap magnetic polarity without applying energy), and then continue to cooperate after these magnets have left the shield.

Simulations shows a truely balanced operation during polarityswap, and yet there is lots of excess force left to make motion when the magnets are in repel and attraction mode. I have already made a thread with this idea, about swapping magnetic polarity without applying energy.

@CLaNZeR,

Beautiful work as usual. You're one of the few doing fruitful work here. I don't think people just offering ideas should be encouraged, even less opportunistic individuals clogging the bandwidth of the forum with trivial objections already understood to allow violation. The ideas of these constructions are trivial and what needs to be done is to apply very skillful engineering and craftsmanship. Those of us interested in this matter should study carefully the lessons given by the exceptional work done by the likes of @Roobert33. If someone doesn't have the means to do that he shouldn't rub it. Shouldn't even mention it. We all don't. Some of us are just more determined, as you are.

Having said the above I'd like to mention my concerns regarding your design. The experience I had with the first model adds to what was obvious from the get go -- the drum has to be very very light. This is every bit a watchmaking job. The interplay of forces to make it work is so delicate that any deviation would amount to a dead end.

Now I'm preparing my second variant with a substantially lighter rotor and an arrangement different from @Roobrt33's V-gate. It seems very promising if I can succeed in manufacturing the proper cam. Will try to get in touch tomorrow with someone who has a super precise metal erosion cnc. I was told that's the state of the art in the Swiss watch making industry. Unfortunately, I have only several days to do that and then, as I said, will have to replicate the whole effort in the states because I don't want to carry with me sharp pieces throught the airports.

The theory this is based is the expectation (one can qualitatively feel that by playing with the above device) that the mechanical work of lifting the stator is less than the work of the drum turning from standstill to the point of lifting. That last work isn't enough to overcome the sticky spot, as is known. That there can be conditions of the former two different types of work to be in favorable proportion has already been show in the case of the magnetic propulsory. the question is how we're going to implement it here. @Roobert33 has obviously done it, we should be able to do it too.

@CLaNZeR,

Beautiful work as usual. You're one of the few doing fruitful work here. I don't think people just offering ideas should be encouraged, even less opportunistic individuals clogging the bandwidth of the forum with trivial objections already understood to allow violation. The ideas of these constructions are trivial and what needs to be done is to apply very skillful engineering and craftsmanship. Those of us interested in this matter should study carefully the lessons given by the exceptional work done by the likes of @Roobert33. If someone doesn't have the means to do that he shouldn't rub it. Shouldn't even mention it. We all don't. Some of us are just more determined, as you are.

Having said the above I'd like to mention my concerns regarding your design. The experience I had with the first model adds to what was obvious from the get go -- the drum has to be very very light. This is every bit a watchmaking job. The interplay of forces to make it work is so delicate that any deviation would amount to a dead end.

Now I'm preparing my second variant with a substantially lighter rotor and an arrangement different from @Roobrt33's V-gate. It seems very promising if I can succeed in manufacturing the proper cam. Will try to get in touch tomorrow with someone who has a super precise metal erosion cnc. I was told that's the state of the art in the Swiss watch making industry. Unfortunately, I have only several days to do that and then, as I said, will have to replicate the whole effort in the states because I don't want to carry with me sharp pieces throught the airports.

The theory this is based is the expectation (one can qualitatively feel that by playing with the above device) that the mechanical work of lifting the stator is less than the work of the drum turning from standstill to the point of lifting. That last work isn't enough to overcome the sticky spot, as is known. That there can be conditions of the former two different types of work to be in favorable proportion has already been show in the case of the magnetic propulsory. the question is how we're going to implement it here. @Roobert33 has obviously done it, we should be able to do it too.

Roobert33 haven't done it - he admitted he was just joking with us. If anyone are able to replicate his device 100% correct (CNC "magnets", and a powersupply under his sweather), the device will not work - unless there is a powersupply under your shirt. Or have I missed your point?

A lighter drum, or bigger, heavier, more powerful magnets? I do not see the point in having a lighter drum, if the total weight of the magnets are relatively high anyways.

Are you suppose to be the person who determine whos ideas are good and bad? Offering ideas is the very reason most members actually are members of this forum. Ignoring ideas, bad or good, should be a shame. Who knows? Maybe the least obvious good idea could get us further. "I don't think people just offering ideas should be encouraged"; Those words are MEAN! How can you say that?

Vidar

like I said all these ideas are trivial and posting more of these trivialities should be discouraged to keep the discussion focused. Non-trivial is the actual making of these devices and some individuals such as @Roobert33 are obviously better than others in that.

There's no need for a powersupply under a sweater. A small electric toy car in the drum will do it 

There's no need for a small electric toy car in the drum either. Turning the drum by hand will be even simpler. No such things, though, let alone a power supply under a sweater. Instead we see a skillfully made device which needs careful replicating.