Bedini Ferris Wheel Regauging Motor

[iankoglin]

Great work Kogs! Your a magician with wood!!
Is it MDF you are using? What is the weight of the wheel approximately?

Best regards
Erik

G'Day Erik
Yes The wheel is made from 1 sheet MDF 6mm @440mm x 1220mm for the sides, the spokes in side are 20mm thick mdf and 77mm wide 2mm wider than the ferrite magnets around the circumference I fitted a strip 90 mm wide 3.5mm MDF to contain the magnets
75 x 50 x 20mm Block (Ferrite)
25 x 6 x 3.5mm Block (Rare Earth)

There is a 3.5mm piece of MDF screwed to hold the magnets in place so they do not drop down as the wheel turns slowly.
I made a center boss 300mm diam by 77mm thick which I bored a 24.6mm hole through the center to press a 25mm iron shaft through so as to be a tight fit. The bearings are NKS RHAEL205 they have a camlock to attach the bearing to the shaft and special bearing housing RH52MS so as to attach the bearing to the 18mm MDF frame. The bearings I soaked them in thinners and blew the grease out with air through a very tiny hole say .75mm diam and then re-lubed them with TRIflow I found that the dust shields were actually loading the bearings and I had to remove them. I found also that if the bearings are not alligned correct in the housing they also load the bearings.
There are no nails or screws in the wheel itself everything is glued together the only screws are what holds the magnets and the bearings to the frame.

The weight of the wheel I do not know except that it is heavy and I can JUST lift it on my own.

Kindest regards Kogs

[iankoglin]

Hi Kogs,

I have some ATS137 halls that John B suggested arriving this week. I'll send you down a couple you can play with. Ren, you can have a couple too.

You could also try paralleling the 2 1200ft strands which should give you 1.9 ohms, which is in John B's ballpark. Just a thought.


John K.

G'Day John K
I really appreciate yours and every ones help and especially JB for allowing us to learn here.
I have made a correction to my last post
so now my coil is made of 2 strands 1200 feet long and 1 strand 600 feet long I left the 1 strand loose and connected the other 2strands now 1200 feet each in parallel and connected them to the circuit. So the 2 1200 foot strands are measuring 3.8ohms when both are in parallel.

I am going to have to get more wire to continue with my build I still do not know what size wire I need to make the coils for the size machine I have made it is 1/9 the size of JB's machine. and I am sure I do not need to make the coils strands each 445 odd feet long, the 4 strands on his big coil measured in parallel 4.2 ohms.

So now are you ""suggesting ""that I make 1 coil of 4 strands 1200? feet all strands paralled to give me 1.9 ohms?


Why did you say JB's ballpark 1.9 ohms Did I miss something when I was reading the posts?

I will see what I can work out. Thanks again.

Kindest regards Kogs

[John_K]

G'Day John K
I really appreciate yours and every ones help and especially JB for allowing us to learn here.
I have made a correction to my last post
so now my coil is made of 2 strands 1200 feet long and 1 strand 600 feet long I left the 1 strand loose and connected the other 2strands now 1200 feet each in parallel and connected them to the circuit. So the 2 1200 foot strands are measuring 3.8ohms when both are in parallel.

I am going to have to get more wire to continue with my build I still do not know what size wire I need to make the coils for the size machine I have made it is 1/9 the size of JB's machine. and I am sure I do not need to make the coils strands each 445 odd feet long, the 4 strands on his big coil measured in parallel 4.2 ohms.

So now are you ""suggesting ""that I make 1 coil of 4 strands 1200? feet all strands paralled to give me 1.9 ohms?


Why did you say JB's ballpark 1.9 ohms Did I miss something when I was reading the posts?

I will see what I can work out. Thanks again.

Kindest regards Kogs

Sorry Kogs,

I think I read it wrong. Keep doing what you're doing. John B said the machine works best at between 2 and 4 ohms (if I remember correctly) so you're right up there at 3.8 ohms.


John K.

[wrench76]

Hello everyone, I just thought I would share a few thoughts since I cant build this machine at the moment. I believe John B. chose these two sizes of wire (18ga &15ga) because ones resistance is half that of the other. 18ga wire has a resistance of about 6.386 ohms per 1000ft, 15ga wire has about 3.181 ohms per 1000ft. So on the main coil, if you had 4 wires (two 18ga & two 15ga)each 4000ft long,you would get two 18ga wires at 25.544ohms each and two 15ga wires at 12.724ohms each. Now if you look at just the 18ga wires, when they are connected in parallel the resistance is divided in half (12.772ohms) The slave coils have half the length of wire used in the main coil (2000ft)so their resistance is 12.772ohms each, the same as the two 18ga wires in Parrnell on the main coil. I believe it is this relationship that causes the magamp affect on the two 15ga wires when they are all hooked together in parallel. Johns' wheel is setup so the magnets pass over each slave coil just before the center magnet passes over the main coil. If you have the slave coils positioned right they would be pumping "or ringing" twice before the main coil was triggered.This is the timing that I believe is critical. Slave coil positions, hall position and dwell. I did not look at my notes before I posted this, so Im not 100% sure about the wire lengths so this is just an example. Well I hope that at least stirs up some ideas for you guys building. Great build BTW @iankoglin


Brian

[minoly]

although I'm batting zero today with some of my thoughts:

Can't all that still happen with each coil still having it's own ckt?

they became live/parallel when active just like the multi-filer multi-coil SG - that is: when the hall switches them on, they each become in parallel for the time they are being switched, right?

would this negate the ability for the Magamp to have any effect? we think it would actually amplify the effect much like the magneto switches toward the end of the magnet pass to amplify the spike in a magneto type generator.
P'n'S

[david.brown]

Energy from the Vacuum Part 22

Hi All,

I Just watched the Energy from the Vacuum Part 22, Bedini 16GT Monopole Motor Coeur D'Alene Debut Presentation. With John Bedini.

One Word “TREMENDOUS”.

I was so disappointed that I could not make it to the convention so I was so glad that a DVD was made.

Highly Recommended from Me.

Regards,

David Brown (Belfast)

[iankoglin]

Kogs S1GT update

G'Day John K
I am going to have to get more wire to continue with my build I still do not know what size wire I need to make the coils for the size machine I have made it is 1/9 the size of JB's machine. and I am sure I do not need to make the coils strands each 445 odd feet long, the 4 strands on his big coil measured in parallel 4.2 ohms.

So now are you ""suggesting ""that I make 1 coil of 4 strands 1200? feet all strands paralled to give me 1.9 ohms?


Why did you say JB's ballpark 1.9 ohms Did I miss something when I was reading the posts?

I will see what I can work out. Thanks again.

Kindest regards Kogs

GT’Day All
With regard to the Coils on my S1GT in trying to match JB’s coil so as to fit on my smaller machine.

I have come up with these Options
________________________________________

JB’s Large coil is 4000 feet each strand
2 strands AWG 15 @12.736ohm each and both Parallel = 6.368 ohms
2 strands AWG 18 @6.385ohm each and both Parallel = 12.77 ohms
The 4 strands paralled are 4.240 ohms
________________________________________
Option 1
Say I use 2850 feet of each strand
2 strands AWG 17 @12.540ohm each and both Parallel = 6.270 ohms
2 strands AWG 19 @25.650ohm each and both Parallel = 12.825 ohms
The 4 strands paralled are 4.211 ohms
________________________________________
Option 2
Say I use 2000 feet of each strand
2 strands AWG 23 @13.8 ohms each and both Parallel = 6.90 ohms
2 strands AWG 20 @21.6ohm each and both Parallel = 10.8 ohms
The 4 strands paralled are 4.210 ohms
________________________________________
Option 3
Say I use 1400 feet of each strand
2 strands AWG 19 @12.6ohm each and both Parallel = 6.3 ohms
2 strands AWG 22 @25.2ohm each and both Parallel = 12.6 ohms
The 4 strands paralled are 4.2 ohms
________________________________________

As the strands in my test coil are AWG#20 1200 feet long about 3.8 ohms
I think option 3 may be the one for me
If any one can suggest what may be the better option I would be very pleased for your input.

Kindest regards Kogs

[John_Bedini]

Tips

John K,
Some tips.....
Think I might say again the big coils are far different in what they can do as far as recovery energy output to the batteries. The bigger the coils the more you will collect. I'm hoping Brent gets his machine running. I might point out that the Bedini Cole switch was changed by me for that machine. This is not the same machine everybody is use to. You all have the basics to get this device working and working good. If you do a simple experiment with a coil that large you will discover the energy returned is something to be dealt with.

The reason I used a capacitor that big (16.000 uf 75 v) is because it is a constant device that really does not change impedance, in other words it stays the same as it charges up so the circuit could be adjusted for the best charge, and it had to do with the timing. I walked away from that machine many times before I got it right.

"Everybody is searching for my impedance of my coils Brent has the correct impedance".
Tip #2

Make the bipolar switch single transistors use a 2 amp light in place of the coils ( use 12 volts to do this) Then start to add parallel transistors until it is as bright as you can get it, just like in the window motor vid, you can see in the box. Heat sink them down. it takes about 4 of each device to do this. Then hook to the coil without running the machine and switch it on by hand watch the capacitor on the output, you will see it when you get it just right.

I know you all have your own opinion that's fine but change it after it is working.

John K Hope you can come to the next one if the world does not blow up.
John, Thanks for fixing CH , analog is the answer John the new one is a killer ask Rick I'm not kidding either.
John B

[John_K]

Hi John B,

Thanks for the tips, mucho appreciato!

I think I know what you're getting at with the big coils vs. the small ones. 4 ohms on a big coil with thick wire is going to behave very differently to 4 ohms on a small coil with thinner wire.

Dan has shipped my order of wire, halls, SCRs and transistors so it should be here any day now. I couldn't help trying a solid state digital version because I had an itch I had to scratch while I'm waiting for the parts. I wanted to see the waveform I was looking for and I got what I wanted out of it. I will do the 2A lamp experiment with the parallel transistors, I think I know what you want us to learn from that but will wait until I've done it before "spilling the beans".

I see what you mean about the size of the cap also, the impedance in the cap will change once you get past 67% of the rated voltage which is why you see the amps decrease on one of the first videos I did. You did mention that in a post.

I'll be at the next one so long as the world doesn't blow up. No probs about fixing CH, it's a great one! Rick and the other person tells me the new one is like "WOW!" I've done some testing with what I think is similar - battery cold boils in minutes and I had to tame it down because I was using digital switching. Pegged out the meter and scared the pants off me! I agree, analog is the way to go here - much easier way to switch, set it right and walk away.

See ya in July!


John K.

John K,
Some tips.....
Think I might say again the big coils are far different in what they can do as far as recovery energy output to the batteries. The bigger the coils the more you will collect. I'm hoping Brent gets his machine running. I might point out that the Bedini Cole switch was changed by me for that machine. This is not the same machine everybody is use to. You all have the basics to get this device working and working good. If you do a simple experiment with a coil that large you will discover the energy returned is something to be dealt with.

The reason I used a capacitor that big (16.000 uf 75 v) is because it is a constant device that really does not change impedance, in other words it stays the same as it charges up so the circuit could be adjusted for the best charge, and it had to do with the timing. I walked away from that machine many times before I got it right.

"Everybody is searching for my impedance of my coils Brent has the correct impedance".
Tip #2

Make the bipolar switch single transistors use a 2 amp light in place of the coils ( use 12 volts to do this) Then start to add parallel transistors until it is as bright as you can get it, just like in the window motor vid, you can see in the box. Heat sink them down. it takes about 4 of each device to do this. Then hook to the coil without running the machine and switch it on by hand watch the capacitor on the output, you will see it when you get it just right.

I know you all have your own opinion that's fine but change it after it is working.

John K Hope you can come to the next one if the world does not blow up.
John, Thanks for fixing CH , analog is the answer John the new one is a killer ask Rick I'm not kidding either.
John B

[penno64]

Hi All,

You guys should seriously have a look at this -

https://sites.google.com/site/altern...coils-circuits

Harti posted at OU -

FUELLESS CAR PROTOTYPE by ISMAEL MOTOR


Regards, Penno

[John_Bedini]

Bedini GT16-3

Penno64,
I have seen this before. This would be the way to go but get the high voltage Fet's in matched pairs is a problem. it would be nice if you could get the P device to match the IRF 260 and I would want it matching. I did find some T0 3's for audio but it's the cost and a minimum order, not for me at this time as I'm still recovering from the cost of the big machine.
John B

[nvisser]

John K,
Some tips.....
Think I might say again the big coils are far different in what they can do as far as recovery energy output to the batteries. The bigger the coils the more you will collect. I'm hoping Brent gets his machine running. I might point out that the Bedini Cole switch was changed by me for that machine. This is not the same machine everybody is use to. You all have the basics to get this device working and working good. If you do a simple experiment with a coil that large you will discover the energy returned is something to be dealt with.

The reason I used a capacitor that big (16.000 uf 75 v) is because it is a constant device that really does not change impedance, in other words it stays the same as it charges up so the circuit could be adjusted for the best charge, and it had to do with the timing. I walked away from that machine many times before I got it right.

"Everybody is searching for my impedance of my coils Brent has the correct impedance".
Tip #2

Make the bipolar switch single transistors use a 2 amp light in place of the coils ( use 12 volts to do this) Then start to add parallel transistors until it is as bright as you can get it, just like in the window motor vid, you can see in the box. Heat sink them down. it takes about 4 of each device to do this. Then hook to the coil without running the machine and switch it on by hand watch the capacitor on the output, you will see it when you get it just right.

I know you all have your own opinion that's fine but change it after it is working.

John K Hope you can come to the next one if the world does not blow up.
John, Thanks for fixing CH , analog is the answer John the new one is a killer ask Rick I'm not kidding either.
John B

Hi John
Could the reason for adding the parallel transistors be to lower the voltage drop (losses) over the collector , emitter?
It’s like building a high voltage , high current low Vce(sat) transistor .
The ones with low Vce(sat) are all low wattage packages.


MJL21194

Collector–Emitter Saturation Voltage
(IC = 8 Adc, IB = 0.8 Adc) VCE(sat) 1.4Vdc
Now the npn and pnp each handles about half the current of the pulse ie: 0.8Adc
So it looks like with 4 transistors in parallel the VCE(sat) will drop to 350mVdc.




The only other reason for adding parallel transistors will be to handle more current but one of the MJL’s can easily handle the 1.5A drawn by the machine.
Vissie

[scratchrobot]

Penno64,
I have seen this before. This would be the way to go but get the high voltage Fet's in matched pairs is a problem. it would be nice if you could get the P device to match the IRF 260 and I would want it matching. I did find some T0 3's for audio but it's the cost and a minimum order, not for me at this time as I'm still recovering from the cost of the big machine.
John B

If this is the way to go then we should go this way
@Penno thanks for the link, I was thinking about adding a second coil?

2shortijgcoilss.jpg

[John_Bedini]

edini GT 16-3

Vissie,
I did that to increase current and I think when I measured it, it was more then your calculating for the devices.

I also want to point out that ,Shorting coils circuits was done back in 1984 by Ron Cole as I have one of the pro-types setting right here on my shelf so it is not new.
But I would still like to have The Fets if you could get them for this size machine.
John B

[gyula]

no need for P channel FET

Hi John,

Sorry for chiming in but in these schematics no P-channel MOSFETs are needed, both FETs can be N-channel. Their sources are tied together and so are the gates, the drains are open like a normally open switch and when the control voltage appears between the common gate and source points there will be an almost short circuit between the drains: the switch gets closed and will be able to conduct current in both directions. (the body diodes are shorted by the 'on' channel resistances). This is the link I mean, first Figure:
https://sites.google.com/site/altern...coils-circuits

IRF640 types are shown but any type with high current and 200-300V breakdown voltage data works. Both the breakdown voltages and the ON-channel resistances add up, input gate-source capacitances are paralleled.

Here is a better type I suggested to Doug Konzen on his EVGRAY forum:
http://www.irf.com/product-info/data...rfs4229pbf.pdf
It is a 250V, 45A device, its ON resistance is .042 Ohm @ 10V
gate-source voltage, PD 330W.

Another type is:
http://www.alliedelec.com/Images/Pro...R/925-0001.PDF

It is available here Fuji Semiconductor - 2SK3554-01 - Discrete MOSFETs - Semiconductors - Allied Electronics

Could you share that when we short a coil with a switch like this (or any other switch suitable for the task) how much the shorting effect reflects back to the energy source that caused the induction in the coil? I have not yet tried coil shorting in practice (I want to do it) but would like to understand why there is no or only a very little input power increase when doing the coil shorting. Doug Konzen shows the scope shot on his shorting the coil at the peaks of the induced voltage in his above site.

Thanks, Gyula

Penno64,
I have seen this before. This would be the way to go but get the high voltage Fet's in matched pairs is a problem. it would be nice if you could get the P device to match the IRF 260 and I would want it matching. I did find some T0 3's for audio but it's the cost and a minimum order, not for me at this time as I'm still recovering from the cost of the big machine.
John B