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Author Topic: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!  (Read 153789 times)

Offline Bruce_TPU

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #60 on: April 09, 2010, 01:53:41 AM »
Hi Bruce,
Do they sell it to everyone? Or just SKDB related guys ? If you can get them from Steorn, what is the price ? Thanks in advance for that info.

Hi Airstriker,

I have heard back from Steorn and am saddened... How can a company be advertising something they are not yet selling?  Anywho, below was their reply...

Dear Bruce,

Many thanks for your interest in Steorn and ZeroF.

ZeroF is presently at a development stage and will be intergrated into commercial applications at a later stage this year. Hence I cannot provide you with the specifics you need at present, however I will keep your details on file and will contact you in due course - alternatively please visit the Steorn website for future updates.

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Offline Airstriker

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #61 on: April 09, 2010, 08:10:17 AM »
Yes, that's sad. I've been searching for passive magnetic bearings for a while - the result is also sad. Every single one, I've found, is at a development stage, or nothing physical exists other than a patent. Actually, there are quite a lot of patents. Maybe anybody here was more successful ?

Anyway, what magnetic bearings is CLaNZeR using in his ORBO replications ?


Offline gravityblock

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #62 on: April 09, 2010, 12:12:23 PM »
Anyway, what magnetic bearings is CLaNZeR using in his ORBO replications ?

I think ClanZer's magnetic bearings are home-made.  Home made magnetic bearings made while in the Steorn Private developers group by Eltimple (check out Eltimple's youtube channel also), http://www.youtube.com/watch?v=__KxFo9ATD4

Halbach Arrays can be used for passive magnetic bearings.  One pole is external and is strengthened, while the other pole is internal and is nearly canceled.

This video demonstrates a simple Halbach Array, http://www.youtube.com/watch?v=Iq72vb6o3Tg

Here's a circular Halbach Array with a simple configuration, http://www.youtube.com/watch?v=qv-9IAj_YnI

Wiki has a good article of the different types of configurations for a Halbach Array, http://en.wikipedia.org/wiki/Halbach_Array#Halbach_cylinder

Passive Magnetic Bearing Development by NASA, http://www.grc.nasa.gov/WWW/spacemech/workshop02/mag-brg.html

ClanZer demonstrating a Halbach Array, http://www.youtube.com/watch?v=zzV6vMG31Mc

This looks promising also, http://www.youtube.com/watch?v=utrHUq4WRsY

GB
« Last Edit: April 09, 2010, 12:37:16 PM by gravityblock »

Offline gravityblock

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #63 on: April 10, 2010, 07:13:46 AM »
Welcome back Bruce.

Short video of my HPG Test Rig, http://www.youtube.com/watch?v=f2WC6Mmk2pc

It's not finished yet.  I need one bearing to hold the end of the axle, and I need to find a good axle that will attach to my Dremel Drill (the axle in the video is for demonstration purposes only).  I have plans to add a center piece that is adjustable in order to shorten or extend the axle according to the different configurations I will be testing, such as multiple magnets/discs, etc.  I still need to work on making my large diameter magnets/Discs.  I could always make it a HPG/mini-lathe (I always wanted a lathe).

I will be testing the Pancake Coil configuration also.

GB


Offline Bruce_TPU

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #64 on: April 10, 2010, 11:31:44 PM »
Hi GB,

Nice start you have there, with your build!  I look forward to your progress...

Thanks for the links on the magnetic bearing info.  I will probably just start off with ceramic bearings for my initial testing.  I need 1/2". 

I have purchased a 1/2" hollow steel rod for my shaft.  I also now have 2 pulley's with 1/2" bore holes, that will be welded to my new plates.  These will hold the shaft.  I found some lovely 10" tin circles that I will be using.  Not the 12" I wanted, but it is what was readily available.

I will now start to order a few magnets at a time.  This is where it get's expensive... I am going to go for broke and go with N52's, 1".  This should give me excellent penetration by the flux field of my bifilar pancake coils I will be building and stacking.

I have purchased 2 rolls of 20' of 12awg stranded. Low resistance, and is stranded...should give me the high amps I am wanting.

My initial thought is to go with 4 sandwiched between NORTH and SOUTH plates, but we will see.  If field is strong enough to penetrate, I may throw a couple of more in the mix.

Not sure how to drive it...will probably use a dremel or drill for testing...

Designing a motor (or way) to spin the thing is a whole other challange.

Cheers,

Bruce
« Last Edit: April 11, 2010, 12:36:18 AM by Bruce_TPU »

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #64 on: April 10, 2010, 11:31:44 PM »
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Offline gravityblock

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #65 on: April 11, 2010, 07:38:46 PM »
I've been thinking about building a large diameter magnet out of many wedge magnets similar to the second image of this post, http://www.overunity.com/index.php?topic=8852.msg235126#msg235126

In our case, we would put a thin piece of metal between each wedge magnet in order to eliminate any gaps between the wedges, because the wedge magnets will want to repel each other.  We would also want a small inner diameter to fit our shaft.  This should give us the best uniform field.  The only downside is we would need to either have long wedges, or start another ring of wedge magnets inside the larger ring of wedge magnets, and have a ring of metal between the outer and inner rings to eliminate any gaps.  The inner wedges would need to be shaped at a different angle than the outer wedges.  This setup should strengthen the pole faces.

What do you think?

GB
« Last Edit: April 11, 2010, 08:15:27 PM by gravityblock »

Offline Bruce_TPU

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #66 on: April 12, 2010, 01:24:12 AM »
I've been thinking about building a large diameter magnet out of many wedge magnets similar to the second image of this post, http://www.overunity.com/index.php?topic=8852.msg235126#msg235126

In our case, we would put a thin piece of metal between each wedge magnet in order to eliminate any gaps between the wedges, because the wedge magnets will want to repel each other.  We would also want a small inner diameter to fit our shaft.  This should give us the best uniform field.  The only downside is we would need to either have long wedges, or start another ring of wedge magnets inside the larger ring of wedge magnets, and have a ring of metal between the outer and inner rings to eliminate any gaps.  The inner wedges would need to be shaped at a different angle than the outer wedges.  This setup should strengthen the pole faces.

What do you think?

GB

Hi GB,

It's not a bad idea, but if I'm not mistaken, those magnets are not all North pole up, or visa versa, so again, you are faced with the same thing, meaning that they would not be touching.  Which I do not see as needed.  My personal motto is always the K.I.S.S. method.  LOL 

I like to keep things simple until proven that I must do otherwise.  I really think you would be fine, using regular (less expensive) magnets, either round or square (on inner part).  With mine, I will be using the most powerful magnets, and at 1" thick, they will give me a very strong flux field, I have no doubt.

I also have a friend of mine, from Church, who is going to assist me with using a very small motor to drive it.  He is VERY GOOD at the use of pulleys.

Today, after Church, I went to check out a device he and his step dad have been working on... He is attempting to use a 3/4 HP motor, rated at about 1100 watts, to turn a generator that is rated at 2200 watts output when driven at 3300 rpm.  This normally is done by using a 5 hp motor to turn it. 

He then has the motor, also plugged into the generator, so that when he throws two switches, the motor will self run.

He is short about 600 rpm.  They calculated a pulley size incorrectly and will be trying again tomorrow with a smaller pulley on the generator.  From a 3" to a 2".

He spun it up for me, and switched it to self run, one of the belts flew off...LOL nearly hit me, but it was very cool!  Will it work?  I should know this next week.  Their idea of power measurment is that the motor is being self run by the generator...LOL  Works for me!

Anywho, I am taking some pieces in this week, to be welded up, and for my shaft to be cut.  Time to roll on this!

Cheers,

Bruce

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #66 on: April 12, 2010, 01:24:12 AM »
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Offline Airstriker

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #67 on: April 15, 2010, 01:22:23 PM »
Hi Bruce,

This pulley transmission concept of your friend's is pretty funny ;] I don't really understand people doing these things - how a hell do they want it to work ? Waste of time, machines, nerves etc. ;]

Offline Bruce_TPU

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #68 on: April 15, 2010, 02:27:04 PM »
Hi Bruce,

This pulley transmission concept of your friend's is pretty funny ;] I don't really understand people doing these things - how a hell do they want it to work ? Waste of time, machines, nerves etc. ;]

Funny or not, they are pretty determined!  They believe they can get the large generator up to correct speed, using pulleys.  Their small little motor sure can spin it up, the way they have it rigged.  They just lack about 600 rpm from having the generator at proper speed...BUT, I explained to them, that when the motor (or any other load) is plugged into it, that is when it will cease working...but the say that they can just add some more pulleys...

In their defense, they own a log splitting shop and they really do use some pulley's there in amazing ways...LOL   It's a deep woods, country thang! 


@ALL
I am hoping to pick up my pieces from a shop today for my BRUNG Generator.  I am having the piece that will hold the shaft, riveted to the metal discs.  And today I drop off the rod to have it cut into several small pieces to use as needed for my two shaft pieces.  I will show some pics, as soon as I get it.

Cheers,

Bruce

Offline wattsup

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #69 on: April 15, 2010, 03:39:04 PM »
@Bruce

Maybe you can show them this regarding an offshoot of the Chas Wheel.

http://www.overunity.com/index.php?topic=3260.msg48499#msg48499

All the best.

wattsup

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #69 on: April 15, 2010, 03:39:04 PM »
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Offline gravityblock

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #70 on: April 15, 2010, 04:47:45 PM »
Hi Bruce,

This pulley transmission concept of your friend's is pretty funny ;] I don't really understand people doing these things - how a hell do they want it to work ? Waste of time, machines, nerves etc. ;]

This is a waste of time, machines, nerves, etc..... but the below quote from you isn't? 

This is actually Tesla's patent but made in the other completelly wrong way.
http://www.freepatentsonline.com/0406968.pdf
Tesla's patent ("Dynamo Electric Machine") describes an arrangement of two parallel discs with separate, parallel shafts, joined like pulleys by a metallic belt. Each disc had a field that was the opposite of the other, so that the flow of current was from the one shaft to the disc edge, across the belt to the other disc edge and to that shaft. This would have greatly reduced the frictional losses caused by sliding contacts by allowing both electrical pickups to interface with the shafts of the two disks rather than at the shaft and a high-speed rim.
In the setup of yours you just have a greater friction - not lower ;] Anyway, both have nothing to do with OU ;]

Tesla's patent with the belt and pulleys is good, and is the right way, but the device from Bruce's friend using pulleys, is wrong and bad, LOL.  Your contradictory statements, bias, closed mindedness, attacks, taking things out of context, twisting words, etc.......are pretty funny, IMO.

GB

Offline gravityblock

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #71 on: April 15, 2010, 06:10:38 PM »
@Bruce:

Steorn may be using a bearing at the top/bottom of the shaft, then using neodymium ring magnets to eliminate most of the thrust and radial loads on the bearings to reduce the friction.  The bearings are for stability only.  Since the eOrbo is a low torque system, then the shaft doesn't make much contact with these bearings.

Have another look at Steorn's ZeroF page, it's been updated, http://www.steorn.com/steornlab/zerof/

You'll notice the ZeroF is a hybrid system.  "The use of permanent magnets reduces necessary shaft contact with the bearing elements, thereby resulting in a much lower friction coefficient".

Here's a good video showing the concept http://www.youtube.com/watch?v=_vzzbxMIITE  At the end of the video, it says the shaft is in a 3mm bearing on the topcap.  This is in agreement with the hybrid ZeroF from Steorn.

GB


Offline Airstriker

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #72 on: April 15, 2010, 09:54:16 PM »
This is a waste of time, machines, nerves, etc..... but the below A from you isn't? 

Tesla's patent with the belt and pulleys is good, and is the right way, but the device from Bruce's friend using pulleys, is wrong and bad, LOL.  Your contradictory statements, bias, closed mindedness, attacks, taking things out of context, twisting words, etc.......are pretty funny, IMO.

GB
no not again you...please. Where is your troll spray ?

Offline Bruce_TPU

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #73 on: April 16, 2010, 03:27:08 AM »
@Bruce:

Steorn may be using a bearing at the top/bottom of the shaft, then using neodymium ring magnets to eliminate most of the thrust and radial loads on the bearings to reduce the friction.  The bearings are for stability only.  Since the eOrbo is a low torque system, then the shaft doesn't make much contact with these bearings.

Have another look at Steorn's ZeroF page, it's been updated, http://www.steorn.com/steornlab/zerof/

You'll notice the ZeroF is a hybrid system.  "The use of permanent magnets reduces necessary shaft contact with the bearing elements, thereby resulting in a much lower friction coefficient".

Here's a good video showing the concept http://www.youtube.com/watch?v=_vzzbxMIITE  At the end of the video, it says the shaft is in a 3mm bearing on the topcap.  This is in agreement with the hybrid ZeroF from Steorn.

GB

Good stuff GB.  Yes, their ZeroF's sound nice, if they would only start to sell them...LOL  I will eventually try to figure out something, I am just not there yet...but hope to be soon!

@ ALL,
I have received my riveted pieces today and they did an awesome job!  I did find out to my amazement that they have a machine there that can cut a perfect circle from any electrically conductive material, in about 10 seconds.  They can cut up to 4 foot circles...!!  I am sticking to my 10" circles though but am VERY happy that I can upgrade to a massive size, should results warrant, in the future.

I have also come to the conclusion that I will have painted, all of my pieces.  I know someone who paint's cars and will take it to them for a proffessional job.  This will make it non-electrically conductive and avoid eddy currents of any kind.  I will have the shaft and all metal pieces painted. 

Below are the pictures of where I am at...

By the way, this small pulley is just to give something for rivets to attach to the plate and to allow the shaft to be attached in a non permanent way.  It has set screws to hold it.  I do plan on using pulleys, but that is a ways out also, so it is not fully thought out.

Cheers,

Bruce


Offline gravityblock

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #74 on: April 16, 2010, 05:17:20 AM »
I have also come to the conclusion that I will have painted, all of my pieces.  I know someone who paint's cars and will take it to them for a proffessional job.  This will make it non-electrically conductive and avoid eddy currents of any kind.  I will have the shaft and all metal pieces painted. 

Cheers,

Bruce

Not a bad idea after following Butch LaFonte's thread on his excellent magnetic switcher.  I reached this same conclusion after reading his thread.  Also, those riveted pieces look really good.  Very professional looking.  Thanks for keeping us updated.

I think the 3mm bearing at the topcap may be a jewel bearing for a very low friction point.  The concept isn't much different than the one friction point you've been working on and the videos on youtube.

GB

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Re: Bruce's Discovery, Tesla's Missing Link for his Unipolar Generator!
« Reply #74 on: April 16, 2010, 05:17:20 AM »

 

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