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Author Topic: One magnet no bearing Bedini motor  (Read 198083 times)

Pirate88179

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Re: One magnet no bearing Bedini motor
« Reply #135 on: June 03, 2009, 09:06:22 PM »
;D while we are on silly questions the poles of the mag are all the same direction right? I have tried a lot of stuff including spinning the thing by hand to see if i could light a led or something...no go....

I think I'm gonna hook this up to an old oscilloscope I have and maybe I can see whats going on a little better

maybe I should use different magnets the neomags are really strong or maybe take out the core

I used 1/2" dia. x 1/4" thick neos on my bench model Bedini rotor set-up and they work fine.  i read you are supposed to have all of the north poles facing out but, I had already glued mine 8 ways from Sunday with the south poles facing out and it still works fine.  But yes, all are supposed to be the same.  Go on youtube and find user Introvertabrate.  he has some very good tutorial videos on how to make the Bedini sg as well as detailed circuit diagrams.  This is the circuit I have used for both of my bedinis and they work.  It call for the 3055 transistor and one n4001 and one n4007 diodes, a neon, and a 400 ohm resistor and one variable resistor of 5k.  I used Lidmotor's transformer coil design and my core is cut off nails (high iron content, you can check various nails with a magnet) epoxied in the coil.

All of this was very confusing to me until I got it to work and then the 2nd one, for Jonny's replication was way easier to build.

I hope this helps.

Bill

jonnydavro

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Re: One magnet no bearing Bedini motor
« Reply #136 on: June 03, 2009, 11:47:28 PM »
@Pirate.Congrats on your latest EB experiment and getting the Bedini to spin.Real nice Bill.Whats that saying?Oh yeah from little acorns a big tree grows.I've got the feeling this might apply here and that energy looks pretty free to me.I was thinking today that you may be able to combine this with solar cells.If you have a small solar cell,an interesting experiment might be to charge a cap up and try to link it to your big mama cap.Just thinking.
@pyrodini.Something is wrong if your coil is squeeling with no resistance in the trigger circuit.Thinking about it,your build maybe a bit over complicated if this is your first stab at making a Bedini.Pirate gives good advice regarding introvertebrates video as i think his  step by step vid has resulted in hundreds of successful builds or even downloading thedaftmans bedini diagram which is a dead cert for a working motor.(search thedaftman on utube)So is what i would do is try introvertebrate's step by step and when you have a working motor,then start adding and changing things about.This way you will make progress a lot quicker as you will get a good understanding of the circuit and be able to solve problems as they occur.Don't give up pyrodini as you have done the hard bit winding the coil.Keep us informed off your progress and we will do all we can to help.Regards jonny

PYRODIN123321

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Re: One magnet no bearing Bedini motor
« Reply #137 on: June 04, 2009, 02:56:45 AM »
Hey yall, thanks for the help, I got it going this evening.... used a bigger coil from an old ac motor instead of the relay I was using.... think the squealing was indeed the resistance being too high....the neon doesn't flash, but its not a very good one for this, need a smaller one.....
@pirate & jonnydavro
thanks again for all your great advice, makes things a lot easier ;D

PYRODIN123321

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Re: One magnet no bearing Bedini motor
« Reply #138 on: June 04, 2009, 02:58:05 AM »
One of these off a ground batt is pretty cool!

retrod

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Re: One magnet no bearing Bedini motor
« Reply #139 on: June 04, 2009, 04:16:25 AM »
What fun! I had to video my first attempt at replication tonight. I was tired but happy it was working, even using some incorrect materials. Here is the link http://www.youtube.com/watch?v=Ck5sbR7u2q0
Thanks Jonny!

Dave

Pirate88179

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Re: One magnet no bearing Bedini motor
« Reply #140 on: June 04, 2009, 06:00:03 AM »
Retrod:

Nice job on your replication!  Very quiet too.  I didn't know we could use twisted pairs spools of wire for out Bedini's.  A lot easier to wind than the way I have been doing it.

Great work.

Bill

jonnydavro

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Re: One magnet no bearing Bedini motor
« Reply #141 on: June 04, 2009, 09:28:31 AM »
@Retrod.What a great idea using the twisted pair and the marble.I wonder how your coil design compares with a standard mag wire bifilar?From what i could see,pretty well.I think you have set the new record  for building a Bedini,10 minutes WOW!
I am going to test your coil design as you may have just made everything a lot simpler.Thanks for your innovative replication and i hope you continue to experiment with it.Nice work Dave.Regards jonny

retrod

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Re: One magnet no bearing Bedini motor
« Reply #142 on: June 04, 2009, 01:27:10 PM »
Thanks Bill & Jonny. I posted a follow-up. The coil is simply 500ft 2/c #24 with a twist. I did not re-spool, it's as it was right off the shelf :-). A true 'lazy man's' replication, Lol!
http://www.youtube.com/watch?v=DLMTdqd2oj8

Thanks again,
Dave
@Retrod.What a great idea using the twisted pair and the marble.I wonder how your coil design compares with a standard mag wire bifilar?From what i could see,pretty well.I think you have set the new record  for building a Bedini,10 minutes WOW!
I am going to test your coil design as you may have just made everything a lot simpler.Thanks for your innovative replication and i hope you continue to experiment with it.Nice work Dave.Regards jonny

PYRODIN123321

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Re: One magnet no bearing Bedini motor
« Reply #143 on: June 04, 2009, 02:40:11 PM »
Hey retrod Cool vid, took me a lot longer than ten min though >:( ;D
got mine working good last night  will post vid later, didn't need the relay/ac motor coil after all, i think pirate was right it just needed a good spin, the ac motor coil did help though, it seems to start easier and at a lower rotation speed. the relay/ac motor coil seems like its giving some back emf and slows down everything...

fun stuff... ;D

I used  the sphere shaped snake egg with two steel bbs on the poles so i could get it going the right way (one of the poles kept turning down to the core when i spun it) the bbs at one point flew off the egg and that thing took off almost broke the plate I had it on

anybody ever heard of beyblades.... like to put a magnet in one of those....

PYRODIN123321

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Re: One magnet no bearing Bedini motor
« Reply #144 on: June 04, 2009, 02:42:15 PM »
might have to put a steel cage around them though......death by spinning top does not sound like a cool way to go....

jonnydavro

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Re: One magnet no bearing Bedini motor
« Reply #145 on: June 04, 2009, 08:28:12 PM »
Hi.Today i did a test using an aircore bifilar coil and a 6mm Neo sphere.The motor ran very economicaly on 1.4v@1.75mA and 2mA when lighting the led.I used a pickup coil to light an LED and i was also recovering the bemf from the relay coil and power winding.This was just a quick test to see if you could get such a small magnet to work so it's not pretty and the sphere is hard to see but it is in there spinning away and there are lots of places to make further savings starting with the elimination of the cardboard end stop which the little ball is rubbing against.I made a vid as i was suprised it drew so little current and here is a closeup pic showing the coil and cardboard endstop retaining the sphere.Regards jonny
@Retrod.Real nice job with the twin rotors.Looks like you are having fun.
@Pyrodini.Good job getting your motor going.Feels much better when you solve the problem yourself don't you think.One word of caution though,if you are using the sphere's then you shouldn't need to add small ball bearings,they will spin by themselves and you could end up hurting someone if they part company.Happy experimenting regards jonny

http://www.youtube.com/watch?v=Ldg2FuJeB94

PYRODIN123321

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Re: One magnet no bearing Bedini motor
« Reply #146 on: June 04, 2009, 11:16:07 PM »
The ball bearings are just to keep the orientation of the magnet with the poles east to west instead of up and down, the sphere mag has a tendency to rotate the poles to line up with the core, the bbs fly off at a low speed after the coil picks up the snake egg. the egg was what almost broke the plate, it was spinning so fast it really starts to chatter, I think I will try some oil like Retrods.

It does feel good to have built it and to have a better understanding of the circuit, thanks again for your insight. also its fun to amaze friends......

Does this have a patent or something associated with it? I would hate to see somebody or some corp. reading these threads grab it up, heard an ad the other day on the radio for a "bedini charger", wonder if he gets any of that....
anyways a eternal spinning top would make a good toy and whoever made it first should get some credit ( jonnydavro?). unless this is considered free domain and anybody can use it for whatever?
Personally I don't intend to sell em or anything, just see the possibility.....

retrod

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Re: One magnet no bearing Bedini motor
« Reply #147 on: June 05, 2009, 12:30:14 PM »
First an observation. I noticed if I have a stack (5 or more) of the 'button' style neos anywhere near the operating rotor the magnet stack will produce the same tone as listening with induction microphone & amplifier, only not nearly as loud. If you hold any neo magnet nearby you will feel the intense vibration as well.
Here is my first attempt at loading the circuit with an external coil. I used what was at hand, a very old color TV degaussing coil. Since the video was made I have added additional LED's and can light seven easily.
http://www.youtube.com/watch?v=6tyxcY1zV1s
Dave

PYRODIN123321

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Re: One magnet no bearing Bedini motor
« Reply #148 on: June 05, 2009, 08:39:29 PM »
finally ....here's a vid of my bedini motor, you can hear the kickback from the ac coil, its a lot quieter with the ac coil bypassed but doesn't start as easy.....

http://www.youtube.com/watch?v=4Dy7-JI-WEU

I'll make one of the snake eggs later too.... ;D

jonnydavro

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Re: One magnet no bearing Bedini motor
« Reply #149 on: June 06, 2009, 03:25:21 PM »
Hi.I think i may have made a bit of a breakthrough with this.I have been experimenting with Neo sphere's and i wondered if i could combine the very powerful cylinder magnet with the sphere's and you can.This is what i did.
I used the cylinder magnet as the main rotor and i placed small 6mm N42 sphere neo's into seperate plastic containers with lids.I found i could get a satalite rotor to spin at a distance of 12" from the main rotor so that give's a 24" spin zone around the main rotor.I also found that i could stack them.I think you could spin as many magnets as you can get close to the main rotor.I only had 10 of the 6mm sphere's but after todays test,i have ordered another 40.I can also recover energy from the satalites witha pickup coil and i found that if you place a pickup coil between two pairs,they will share it so thats another bonus.
Here are some pics and a video.regards jonny.

http://www.youtube.com/watch?v=XuVtKYfSDI8