got over the sticky spot

[hartiberlin]

Stefan,

I did not measure the rpm though it did run for over 1 hour so I am sure it
works. My last version with a single ball did over speed and destroy itself.
This one uses compliant magnet mounts on the stator and VERY carefull
positioning of the neo's on the balls to run at all. If the mags are moved
by 1mm it will not run. I have added the balls to better study the concept -
a side effect is it has slowed down - a lot. A guess at rpm would be 100. If
I was to stiffen the magnet holders the rpm would increase but then I can't
observe what happens. At low rpm's the magnets swing through 15 degrees as
the ball passes............

It does not always run - it has to be started by hand - there are 3
'sticking' spots. To start the motor has to be reversed or advanced till a
ball is just prior to the gate - from here it pings forward. I have learned
much in the past week - one word - flywheel. Just like a 4 stroke with no
moving mass (flywheel) cannot run nor can a magnet powered device run which
relies on a short power stroke or short power off stroke. If the rotor has
little mass it can't overcome the 'lump' or 'void' created. Many (all?)
people do not  truly understand the balls function - people really should
have a play with some.

Yes I removed the magnet for the movie. I figured that movie - in particular
the very first segment showed that it would run had I added the other
magnet. And no - I do not have video of it running - that would be
worthless - it proves nothing. The concept is sound - thats why I posted the
movie I did.

Aerial photography, yes I run a heli (Logo10) and a fixed wing. The cam is
moveable and tracks my head movements - the image is downlinked to a 5 inch
monitor under my chin. It's a real business, ezeAP, but this time of year is
no good for pics so I spend time fixing machinery for people - or inventing
solutions. Logo10 weighs 2KG all up and the aircraft weighs 1KG. I really
only use the heli when I have to - which is rarely. Much too risky to
overfly crowds - which I have to do a lot of. Much of the video and many of
the pics I have been commisioned to do have been crowds doing something -
watching, queing, playing etc.

Scott

----- Original Message -----
From: "Stefan Hartmann" <hartiberlin@gmx.de>
To: <scottclarke@ntlworld.com>
Sent: Wednesday, February 22, 2006 12:38 AM
Subject: Motor rpm?


> Hi Scott,
> what do you get as the maximum RPM ?
> Does the motor spin up,
> if not braked ?
> Will it self destroy if there is no load on it ?
>
> Did you just remove the 3rd magnet from the steel
> ball for the Movie500.wmv  ?
> Be proud of yourself and please show us the selfrunning motor.

[hartiberlin]

Stefan,

Yes you do need the triangle projection toward the ball. It will almost run
without but it does form the 'gate' so without it - no way it will run.

Yep, a neo on each ball in exactly the right spot does it.

Using power to overcome the stick - I believe a Japanese company have such a
motor - the power nullifies the magnets force - it does not reverse it. It
seems to me this alone is a way to excess energy - yet vastly more
complicated than some neo's on balls:) Like I have said - inertia is a major
factor - so too is field interaction with retreating magnets. These I
believe to be the reasons for many failures. I know they have prevented me
from using 1/8 neo's on a 3.3inch HD platter. In fact I will go as far as to
say I believe togther they have been the reason for the many failures of
mine over the past 5 years.

I'm going to rebuild it on glass.....

Scott

----- Original Message -----
From: "Stefan Hartmann" <hartiberlin@gmx.de>
To: "SC" <scottclarke@ntlworld.com>
Sent: Wednesday, February 22, 2006 1:31 AM
Subject: Re: Motor rpm?


> Hi Scott, thanks for the fast answer.
> Is the triangular magnet a must, that you have
> created by brsuhing off a corner of a magnet ?
>
> So does it just run with 3 neos attached to the 3 balls ?
>
> Try to document the running motor as much as possible
> and videotape this.
> Maybe you can show, how you handstart the motor and that it keeps
> on running for 1 minute or so on video.
> That would be okay, I guess.
>

[Duranza]

Thanks for the new info Stefan.

[Omnibus]

Another ?thank you? to you, Stefan. Like you said, a 1min video demo of the self-running motor will do. Eagerly waiting ...

[longwolf]

Hi Scott,

I'm trying to figure out how you have your magnets arranged to make the gate.

I did a drawing.

Have I gotten close?
Are the polarities right?