CLaNZeR can achieve overunity!

[billmehess]

I don't think a circular Halbach array is useful to make a A motor...

But linear Halbach arrays are useful... The problem is that, in the configuration Clanzer used in his video, the roller can only go in straight line. Any deflection of the trajectory would probably make the roller stop. Anyway, if the roller can overcome the gate of dozens of pairs of linear Halbach arrays just with the speed it gained from the previous pair, then a closed loop is possible, even in straight line, because we can harvest electricity with a piezo film.

I think the problem here may be how much electricity can a piezo film produce. The roller will be very light and may only produce in the mv and ua range. The goal is to be able to flip the roller 180 degress and reposition it in the correct alignment to cause it to roll backwards. I think first would be to build the unit that would do this aligment and see how much energy is needed to accomplish this. Then roll the roller over a piezo the length of one of the arrays the amount of elect and amperage that is produced can be measured and then in effect divided into the amount needed to determine the required number of Halbach arrays needed. It might be in the millions. At this point who knows?

[Rapadura]

The goal is to be able to flip the roller 180 degress and reposition it in the correct alignment to cause it to roll backwards. I think first would be to build the unit that would do this aligment and see how much energy is needed to accomplish this.

I fully agree with you. After we are certain that the roller can travel through any number of pairs of Halbach arrays (I think if it can travel through 4 pairs it can travel thorugh any number), then the next task is to build the mechanism to rotate the roller and put it to travel back, and see how much power this mechanism consumes.

[gravityblock]

I don't think a circular Halbach array is useful to make a magnetic motor...

But linear Halbach arrays are useful... The problem is that, in the configuration Clanzer used in his video, the roller can only go in straight line. Any deflection of the trajectory would probably make the roller stop. Anyway, if the roller can overcome the gate of dozens of pairs of linear Halbach arrays just with the speed it gained from the previous pair, then a closed loop is possible, even in straight line, because we can harvest electricity with a piezo film.

Circular Halbach Arrays are very useful to make a magnetic motor.  In fact, they are used in high performance brush-less motors, for magnetic bearings, and magnetic coupling.

There is no cancellation of flux when you build it into a ring.  If the ratio of outer to inner radii is greater than e, the flux inside the bore actually exceeds the remanence of the magnetic material used to create the cylinder.

Halbach Array cylinders can be nested, and by rotating one cylinder relative to the other, cancellation of the field and adjustment of the direction can be achieved.  This effect could be used to have the roller follow a curved or spiral path inside the bore.  Instead of rotating the roller at the end of a linear halbach array, why not rotate the field throughout a nested ring of halbach cylinder arrays?  This way you don't have to worry about rotating the roller at the ends of a linear array.

You'll need many circular halbach's facing each other to form a complete ring.  You'll then place your roller on a track inside the bore of the circular halbach's and the loop will be closed.  The attached image below is to aid in the visualization of how to nest the individual halbach cylinders.  The green arrows are showing the direction of the field pointing in the same direction around the entire ring for simplicity only, but remember the direction of the field can be adjusted throughout the nested cylinders to force the roller to follow a curved or spiral path through the inside bore.

This design is using the "K=2" configuration for a halbach cylinder found on wiki, http://en.wikipedia.org/wiki/Halbach_array#Halbach_cylinder

GB

[Rapadura]

@gravityblock: Wow, it seems extremely difficult to build!

Wikipedia shows three ways to build a "k=2" cicrcular Halbach array: A, B, and C. Your idea is based in one particular way, or any of the three should work? Because ways B and C are less hard to build than way A, wich requires magnets with strange triangular shapes...

[gravityblock]

@gravityblock: Wow, it seems extremely difficult to build!

Wikipedia shows three ways to build a "k=2" cicrcular Halbach array: A, B, and C. Your idea is based in one particular way, or any of the three should work? Because ways B and C are less hard to build than way A, wich requires magnets with strange triangular shapes...

My design was drawn for simplicity and for time constraints, because my drawing capabilities are poor.  I believe it can be done with cube magnets with the correct angle and polarity sequence.  I don't see why separated magnets with soft iron return paths, as shown in figure (C) wouldn't work either, unless I'm overlooking something.  Method C would be easier to build, but may not be the best option in my opinion.  Both methods should work if the direction of the field and roller makes one complete spiral through the inner bore.  The track for the roller will need to follow the direction of the field as it spirals through the bore (This is the difficult part).  Only way to know is to test. 

GB