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Author Topic: Orbo blueprint and theory  (Read 54037 times)

deedee

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Re: Orbo blueprint and theory
« Reply #15 on: July 10, 2007, 06:51:18 AM »
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« Last Edit: September 07, 2007, 10:56:19 PM by deedee »

TheOne

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Re: Orbo blueprint and theory
« Reply #16 on: July 10, 2007, 06:56:15 AM »
did you see the device for real? how do you know it's only magnet without shielding?

deedee

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Re: Orbo blueprint and theory
« Reply #17 on: July 10, 2007, 07:51:49 AM »
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« Last Edit: September 07, 2007, 10:56:44 PM by deedee »

RoamZero

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Re: Orbo blueprint and theory
« Reply #18 on: July 10, 2007, 08:47:11 AM »
My question is if someone can clarify how magnetic lag/viscosity plays its role as Steorn has hinted that it plays a big role, "small" (weak/dirty) magnets being affected by larger/stronger magnets (I assume by special timing and the flipping of poles/domains by the stronger magnets on the weak/dirty rotor magnets).

deedee

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Re: Orbo blueprint and theory
« Reply #19 on: July 10, 2007, 08:54:21 AM »
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« Last Edit: September 07, 2007, 10:57:11 PM by deedee »

RoamZero

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Re: Orbo blueprint and theory
« Reply #20 on: July 10, 2007, 11:19:49 AM »
I think this is correct? I was messing around in visimag and got this which ended up very similar to what you describe.

deedee

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Re: Orbo blueprint and theory
« Reply #21 on: July 10, 2007, 11:36:17 AM »
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« Last Edit: September 07, 2007, 10:57:38 PM by deedee »

deedee

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Re: Orbo blueprint and theory
« Reply #22 on: July 10, 2007, 12:17:53 PM »
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« Last Edit: September 07, 2007, 11:00:32 PM by deedee »

TheOne

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Re: Orbo blueprint and theory
« Reply #23 on: July 10, 2007, 02:33:28 PM »
so the magnet on the stator are not one magnet but 3 per "slot" that look like a one magnet?

hum i dont have any small magnet for replicate this!

TheOne

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Re: Orbo blueprint and theory
« Reply #24 on: July 10, 2007, 02:41:54 PM »
Or they fillup all the stator with magnet on the other direction to make the hallbach  array? My concern is the magnet to fillup also, if you look on the ORBO device they have nothing between the slot

and all my magnet are cylinder type not cube so i suppose i cannot do any hallback array with it

steve_whiss

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Re: Orbo blueprint and theory
« Reply #25 on: July 10, 2007, 04:01:38 PM »
OK,

More Q's.

Pls confirm: Going clockwise around the rotor, the magnets are SN SN SN etc (N leads 1st) about the circumference of the rotor, i.e. N POINTS clockwise around the edge

..NOT radial edge-to-centre: i.e. not edge sees N, centre sees S


The numbers of magnets. Seems to me that the stator needs an odd number and the rotor - some other higher number, most like even.

EG 5 Halbach groups about the outside on stator, 4 rotor plan magnets (N out?)

Yes / No ?

The angles:

rotor magnets square on, stator Halbachs say 20 deg slant?

How does the angle affect all this?

Steve
« Last Edit: July 10, 2007, 05:00:56 PM by steve_whiss »

Thaelin

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Re: Orbo blueprint and theory
« Reply #26 on: July 10, 2007, 04:13:53 PM »
Hey all:
   Just a bit of observation here. I look at the picture of the steorn person holding the proto running and then at the display case and I see a real problem. In the proto, its running wide open to the air. Not a big deal on that respect. Now take a good close look at the display case. I would think it has the sides way too close to the spinning rotor. Can you say wind currents. Lots of drag. That would soon make the plastic get just a bit on the warm side. Maybe even hot. Hot plastic likes to warp. Warp the very thing that is holding the bearings and presto, worn out bearings.
   Just a bit of thought on my part. But I would bet that thoes bearings were not movable and therefore had a side loading problem causing a lot of wear.

sugra

TheOne

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Re: Orbo blueprint and theory
« Reply #27 on: July 10, 2007, 04:32:22 PM »
rotor magnets square on, stator Halbachs say 20 deg slant?

For the stator angles, its 30 degree but its a complete mistary about the magnets all around it, its like he will need to make a much better plan because right now we just dont have enough infos, he know how to do it but not us...

just take you time and explain better, dont assume we know the motor, no one know, also all the problem is related to the halback array, you show images that just not fit all together

deedee

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Re: Orbo blueprint and theory
« Reply #28 on: July 10, 2007, 05:16:35 PM »
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« Last Edit: September 07, 2007, 10:58:17 PM by deedee »

TheOne

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Re: Orbo blueprint and theory
« Reply #29 on: July 10, 2007, 05:37:28 PM »
are the magnet in the stator are little square magnet like this http://www.kjmagnetics.com/proddetail.asp?prod=B333 ?
(http://www.kjmagnetics.com/prodimages/B333L.jpg)