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Mechanical free energy devices => mechanic => Topic started by: beedees on August 04, 2007, 11:13:02 PM

Title: Exactly WHAT is the dreaded sticky spot.....
Post by: beedees on August 04, 2007, 11:13:02 PM
...and any great advantage in eliminating it?
Title: Re: Exactly WHAT is the dreaded sticky spot.....
Post by: tropes on August 05, 2007, 12:23:12 AM
BDBD
The "sticky spot" occurs when the rotor magnet(s) and the stator magnet(s) are in a state of equilibrium. The repulsion or attraction of the rotor will move the rotor a portion of a full rotation (360 degrees). The rotor stops when the same repulsion or attraction prevents the rotor from moving .
This is best illustrated when a single stator magnet repels a single rotor magnet. If the stator magnet is not removed when the rotor magnet rotates to the proximity of this repelling  magnet, it will stop and be repelled before it reaches 360 degrees.
Adding magnets to the stator or rotor make no difference as the stator magnets will act collectively as one magnet and the rotor magnets will also act as one.
Title: Re: Exactly WHAT is the dreaded sticky spot.....
Post by: Duranza on August 06, 2007, 04:22:14 PM
The advantage of eliminating it will yield a working PM motor :-)
Title: Re: Exactly WHAT is the dreaded sticky spot.....
Post by: tropes on August 07, 2007, 03:53:41 AM
...and any great advantage in eliminating it?
If we could eliminate the "sticky spot" most of us in this group would have a perpetual motion machine.
Title: Re: Exactly WHAT is the dreaded sticky spot.....
Post by: norman6538 on September 10, 2007, 02:33:23 AM
One can get magnets to do work but then they are stuck such that
it will take as much or more force to get them apart. Even the smot
google video looks like it gets past the sticky spot but it does via
gravity dropping the ball down into the dish. So there is no net
gain. Yes it goes up hill but no net gain.

In the case of my pendulum that swings higher than its dropped point
it gets away from the sticky spot and drops back to 6 oclock and is not
stuck but so far I have not been able to take power off and use it.

No pendulums do not normally act that way.

Norman
Title: Re: Exactly WHAT is the dreaded sticky spot.....
Post by: hansvonlieven on September 10, 2007, 09:58:13 PM
G'day Norman and all,


In the case of my pendulum that swings higher than its dropped point
it gets away from the sticky spot and drops back to 6 oclock and is not
stuck but so far I have not been able to take power off and use it.

No pendulums do not normally act that way.

Norman

I would like to see this pendulum experiment of yours, do you mean to say that the pendulum moves in perpetuity, because if it swings higher than the dropped point it means it should go forever, or does it slow down on the way back?

Be so kind and tell us what you have done, sounds fascinating.

Hans von Lieven