What's a magnet/ gravity motor worth to you?? New way of thought.

[magnetman12003]

Ok never giving upon this idea.  Take a total of 4 longboard skate wheels with all ceramic bearings in them.
Mount a pair of them horizontally on a non ferrous shaft.  Do the same  for the other pair.  Spread the pair apart about 1/2 inch or so and fix one end of each shaft to a horizontal support which will allow the wheels to free rotate close to each other.


Now place a 4 inch diameter, 5 inch long, section of pvc pipe on top of both sets of free turning skate wheels.
You guessed it- now place a 3 inch long, 1 inch diameter alnico or neo magnet covered in a silicon pipe
Inside the 4 inch diameter pipe.


Bringing a external magnet near it will cause the silicon pipe magnet inside the 4 inch pipe to roll the other way in repel.  But since the 4 inch pipe is on free roller bed composed of free rotating skate wheels under it- it will roll in a fixed spot.  No axle needed at all.


If you take just a 5 inch long 4 inch diameter pipe and place the above magnet inside it it will roll freely the other way on a ground floor when a external hand held magnet is placed close in repel.  The same holds true for the above??

[Belfior]

I think people can ruin a good idea very fast, if they do not try to minimize the negatives.

Why use bearings? Use magnetic bearings if you have to
Do you actually need to rotate a physical thing? How much friction and air friction is that physical thing going to suffer? How about rotating the field instead?
Is the rotation accelerating all the time or just trying to go one speed?
Are you using all the known parameters or forces that can aid your rotor movement? Lorentz force, asymmetric cap force etc

[skywatcher]

If the idea in principle would work (which it does not) there should be a significant force and torque, so there would be no need for special bearings etc.

It's always the same: if something doesn't work, someone comes and says 'you did something wrong'.
But in most cases it's the idea itself, which doesn't work... not the implementation.

[magnetman12003]

I already had the magnet inside the 4 inch diameter pipe rolling in repel on the floor.   If you hold the pipe with magnet inside steady and bring the external magnet very close you can feel a considerable force the opposite way in repel.  So what's the difference if rolling on top of a skate wheel setup in one spot while the the external magnet is very close to it??

[skywatcher]

If you have the free-rolling tube on the floor and you approach it with a magnet, it will roll away, and you have to follow it:  Force x displacement = energy.  If it is fixed you only have force but no displacement, so you have no energy. That's why it doesn't work.