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  #31  
Old 05-19-2019, 01:09 PM
lotec lotec is offline
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Join Date: Feb 2012
Posts: 159
Hi,
I am still that taken with Alex Manzanero's idea that I had to keep nibbling away. I'm also hoping that the rotor might answer some questions I have about induction. Here is a shot of the stater.



Here is a clean shot of the rotor.



Here is a shot of where things ended up today, when I ran out of spacers and patients (not necessarily in that order ). Hopefully that will be enough pics to get the general idea.



There is probably only two major mistakes I can think of when assembling everything, and I managed to make both of them.

The first is not replacing all steel threaded rod with stainless. If it doesn't cause massive shorts in the flux circuit, it will cause unnecessary cogging.

The second is not making sure both magnet stacks are facing the same way, ie all norths up or all norths down. Failure to do this will result in the two stacks coupling causing a massive short across the center of the rotor, with only the left overs making it to the outside where it is needed.

cheers.
Attached Images
File Type: png Flux_Divert_Gen_3.png (430.4 KB, 85 views)
File Type: png Flux_Divert_Gen_4.png (411.0 KB, 81 views)
File Type: png Flux_Divert_Gen_5.png (401.4 KB, 83 views)
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  #32  
Old 05-27-2019, 08:55 AM
lotec lotec is offline
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Join Date: Feb 2012
Posts: 159
Hi,
The other day I Bolted it all up and this is what it looked like.



It looks like I blew the gen core and ergo the windings. I was pretty unimpressed with the voltage output. That is about 3M of 0.7 wire.
Joseph Newman would be very angry with me right now, and I also observed that the more experienced gen builders here are quite generous with the copper. So in order to make sure that I give this concept a fair shake of the sauce bottle, I'm rewinding the stater. The primary on the stater is wound and I'm doing the secondary tonight. Here's a shot of the old one next to the new one.



The rotor was a bit of a departure from the norm. I found the time to briefly test it against a more orthodox rotor with more powerful magnets, and I'm actually quite happy with it for now. I'm hoping the mark 2 will be ready to spin up soon.

cheers.
Attached Images
File Type: png Fux_Divert_Gen_6.png (348.9 KB, 66 views)
File Type: png Flux_Divert_Gen_7.png (265.4 KB, 66 views)
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  #33  
Old 06-03-2019, 01:32 PM
lotec lotec is offline
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Join Date: Feb 2012
Posts: 159
Hi.
The other day I assembled the new version.



The output was lower than expected. It could charge a capacitor to 20 Volts, which was ok, but when shorted could only deliver 45 mA.

I also tried this version with a much more powerful rotor made from 3 very strong ring magnets placed right in the center, so they would rotate one their own axis, with the axle through the center of them. Axle and washers made from steel.



This made for a very powerful magnetic lock when it would come to a stand still. For all that flux being pumped through the gen core, it did a little better, and could charge a capacitor to 42 volts, but when shorted could only deliver 95 mA.

Thinking to myself that, generally speaking, a good low drag generator, would need to induct powerfully and make a useless motor. When applying a d.c. current biased for attraction to the rotor, to the gen coil, it was easy to see that some flux had been diverted away from the rotor, by the magnetic attraction inside the back of the C core, but it was also easy to see that some of the flux in the core had also coupled with the rotor flux making a noticeably stronger attraction. Having played around with some of Flynn's stuff in the past, I should have seen that coming. Also when a d.c. current biased for repulsion was applied to the gen coil, it could push the rotor away.

So given the unimpressive output, and the gen coil's ability to influence the rotor, I think it is time to move on to other things. When I say this I am only talking about this axial flux version that I made, and not the radial flux version that was used in the start of the thread. That is a different story, and not having tried that, I can't say anything about that.

cheers.


The first stater made from 3M of 0.7 wire. Output using the two magnet stack rotor 20 mV after being rectified, and 2 A shorted using clamp meter set to A.C. .

Second stater made from 0.25 wire, as many turns as it took to half full the core, over a thousand, 43 Ohms.
Attached Images
File Type: png Flux_Divert_Gen_8.png (408.8 KB, 37 views)
File Type: png Flux_Divert_Gen_9.png (360.6 KB, 40 views)
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  #34  
Old 06-03-2019, 07:20 PM
Pot head Pot head is offline
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Join Date: Mar 2019
Location: Nunya
Posts: 350
Greetings

Interesting build, sir.
Question: Are you building a giant microwave oven?
Please cook me an entire cow, please...
Just smoke flavoring will do nicely.
Ok, seriously: would a microwave oven diode even come close to what you are achieving?
Tell the classroom your thoughts, please.
Thank you.
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  #35  
Old 06-04-2019, 07:00 AM
lotec lotec is offline
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Join Date: Feb 2012
Posts: 159
Greetings 2 u 2 sir.
Thanx 4 keeping things lite. I took a look at your junkyard electricity thread after seeing 1 of your rotors, and thought it was pretty cool. I missed it first time round while i was out wandering in the wilderness. I wish I could find junk that cool, but over in this neck of the woods u can't even buy junk like that for love nor money. The transfer stations won't sell anything electrical, even with the cord cut off, because some one might electrocute themselves, yet they sell used knives and forks knowing that people might accidentally gauge out there eye while putting food in their mouths.

I'm not working on a microwave oven that seats six, but r in the market for a transformer or two. If I was looking for a power source 2 run a microwave I probably wouldn't stack 1000 of the contrivances, I just described in parallel to do it.

Jee if only magnetism where as easy to diode and store in a capacitor such as a flux capacitor, then we all would have moved on to time travel. Then youll be waiting longer than the weekend for the hardware store to open. maybe you could settle for 250 metric tonnes of 1mm thick aluminum pale, ......, 100 kg of bismuth, and 50 kilos of gold, (fast track the gold).

But on a slightly more serious note, my last post was about not taking all my previous posts too seriously while still trying to save face. Trust me, it's not the first time I've Botched 1 up, not to say that it was a complete waste of time. There may be some truths the discerning person can take from that. I can see from some of your builds that you're not afraid to make a departure from the norm to. To get inside the mind set of why, then maybe that could be a real lesson for me.

It's not my intention to always come across as a pompous old prick. Free the weed brother, sure is 1 of my favorite plants.

cheers
Regards
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