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Old 05-14-2019, 09:05 AM
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Netica Netica is offline
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Join Date: Jan 2009
Posts: 153
Originally Posted by Turion View Post
The machine I recommended (which I have also built and am putting back together at this time) is all N magnets out on the rotor. For EXACTLY the reason Bro Mikey talks about. When you are using a horizontal rotor with magnets on the rotor edge, when a magnet is aligned in attraction with a coil, the magnet directly across from it is aligned with an adjustable magnet on the stator. They cancel each other out. In a vertical rotor, that's magnets on the face of the rotor instead of the edge (so it can have a coil on each side of the rotor) wen the magnet is aligned with the two coils, the magnet opposite it on the rotor is aligned BETWEEN two adjustable magnets that match the face of the magnet aligned to them in repulsion. It will not put out as much as my big machine because it is only 10 coil instead of 12 and does not have as many magnets on the rotor, nor are they as thick. But when I get it back up and running it will STILL prove my point. I know some people are going to whine because it doesn’t put out 2,000 watts, but let them. It is also WAY less expensive to build than my big machine for a number of reasons. Size, number of magnets, etc. So it is THIS machine I have chosen to share for replication.

My BIG machine has N/S magnets on the rotors and 12 coils. But the rotor is larger in diameter by 3 inches and has a second set of magnets out closer to the rim. Each time one of the primary magnets centers between two coils in attraction to both, these secondary magnets center between two magnets on the stator in repulsion. The N side of the magnet is aligned with an N magnet on the stator and the S side of the magnet is aligned with an S magnet on the stator. The stator magnets are adjustable on the big machine just like on the small machine, but I made MISTAKES building the big machine that I corrected when I built the smaller one. The big machine used square magnets that rode in square plastic tubing and the little magnet holder that was adjusted in and out was complex and did not work well. I went to round magnets in pvc pipe for the small machine and that eliminated the magnet holder complexity. Live and learn. It was also CHEAPER, which is always good.

At speed I see no difference in INDIVIDUAL coil output between the two machines, but the number of magnets on the rotor makes a difference as does the thickness of the rotor magnets. One just has more coils and stronger magnets. It USED to have weaker magnets and that is when I compared the output of the coils. Right now, the bigger machine definitely gets MORE out of the coils.

Which brings me to another thought. At SOME point the core is absorbing all the flux it can accept, so the coil will put out NO MORE electricity no matter HOW big or thick the magnets are. I don't know what that point IS.

as a side note: I have an entire box that is probably 18 inches square built out of 1 x 6's holding all of the different rotors I have tried on these machines to get the one I believe outputs the most for the situation. They each have a piece of 3/4 plywood between them so that I can get them apart because the all want to stick together. Some of them are only 1/4 inch thick with a single magnet pressed in, and some have magnets pressed in from both sides. Some are missing some of the magnets because they got pulled out for the NEXT rotor. I would be happy to send ANYONE one of my old rotors so they can experiment if they are willing to pay the cost of shipping up front. I am really tired of people promising me they would pay for shipping and then they get what I sent them for FREE and never paid my shipping costs. I can't tell you HOW many times that has happened, and I don't mind giving stuff away for free or I wouldn't OFFER it, but it is the principal of the thing when people make promises they don't keep.
Thanks very much for the help here Turion, a great detailed bit of information and it all helps for those who are working on these machines.
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