Tri-Force Magnets - Finally shown to be OU?

[Yadaraf]

@Yadaraf,

That's correct, I'm working with that SuperMagnetMan Erector Kit. The symmetric octahedron can be built just fine with it. Unfortunately, as we also see in @CLaNZeR's video it decelerates (in some configurations faster than in others) just as anything else trivial does.

Omni,

I agree that the octahedral rotor can be built separately using the small neos, but while the rotor is suspend from the triangular stator and the rotor/stator gap is being established, the rotor collapses.  My guess is that you're not setting the gap close enough, which is necessary to "pulse" the rotor as observed by both sm0ky2 and the original author, who called the pulsing "light jolts, not some muscular pushes."

... "light jolts":  http://fr.youtube.com/watch?v=GkzAAPRaJzU

If you have a video of your SuperMagnetMan device "pulsing" like in the original YouTube vid, I'd love to see it.  My rotor keeps collapsing during the gap setup, which is very tricky

Cheers

Yada..
.

[Yadaraf]

A man after my own heart with the RAPID Catalogue in the background!

I think this is a nice Magnetic Bearing with reduced friction.
So would be good for experiementing with as a rotor.

Here is second video.

Shows a big difference between coupling the joining ball bearing N-N or N-S

Hi Res download link:
http://www.overunity.org.uk/CLaNZeRSFairFieldReplication2.wmv

Or Youtube
http://www.youtube.com/watch?v=Vwvrl9aesz8

Off to check out Grahams new video.

Cheers

Sean.

CTG Labs,

CLaNZeR forgot the stator arms and is redoing the exercise.

Look closely at the original YouTube and notice that the device pulses, which the author refers to as "light jolts."  Also, the pulsing can be seen in CLaNZeR's first video, which included the stator arms.

Cheers

Yada..
.

[Omnibus]

@Yadaraf,

I don't know what rotor/stator gap you're referring to. My rotor is attached to the triangular stator easily and doesn't collapse. Making a video isn't worth it because there's nothing unusual to see.

As for the jolts, what's the point since in all videos the rotor is decelerating after the initial push?

[Yadaraf]

@Yadaraf,

I don't know what rotor/stator gap you're referring to. My rotor is attached to the triangular stator easily and doesn't collapse. Making a video isn't worth it because there's nothing unusual to see.

As for the jolts, what's the point since in all videos the rotor is decelerating after the initial push?

@Omni

Look closely at the stator in sm0ky2's video, or in the original YouTube Fairfield video, or in CLaNZeR's first and fifth videos. 

There are two extension arms that include bars or balls at the ends.  In order to achieve "pulsing" you have to move the stator elements closer to the rotor (i.e. "set the gap").  With the Erector Kit neos you will find that your octahedral rotor collapses during the process.  It's not just my experience -- another investigator working with the same Erector Kit has had the same problem.  The small steel balls are saturated by the large cluster of strong neos.  In any event, with regular Geomag or Magnetix setting the gap is tricky, as both sm0ky2 and the Fairfield author have described.

For this particular device I'm going to buy a small Magnetix or Geomags kit to see if I can make a "pulser" as demonstrated in the original Fairfield YouTube.  Seriously ... when the neo rotor caves in, it's very disheartening.  My thumbnails are now hurting from "ungluing" the residual piles of neos and balls.   

IMHO, because the device "pulses" it appears to be more than a simple bearing.  My guess is that the stator rocks back and forth slighty as the rotor spins, and this sustains rotation -- akin to a latch.  In addition, it's possible that some flux is circulating between the spinning rotor and oscillating stator, which are physically coupled together via a steel ball.  This could contribute postive feedback to the system.  I haven't studied many systems where the rotor and stator are physically coupled -- I am familiar with the Perepetia, however.

Cheers

Yada..
.

[CLaNZeR]

Okay I admit after playing for a couple of hours I thought there was nothing in this part from a very nice magnetic bearing.

Must now I am convinced the Top magnet is interacting and doing a bit of work.

Usually adding magnets to a stator make the Wind Down times shorter.
Could this be a bit of SV interaction going on?

http://www.overunity.org.uk/CLaNZeRSFairFieldReplication7.wmv

If you want to see earlier videos then they are listed below, or can be seen on my YouTube account.

http://www.overunity.org.uk/CLaNZeRSFairFieldReplication3.wmv
http://www.overunity.org.uk/CLaNZeRSFairFieldReplication4.wmv
http://www.overunity.org.uk/CLaNZeRSFairFieldReplication5.wmv
http://www.overunity.org.uk/CLaNZeRSFairFieldReplication6.wmv

Cheers

Sean.