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  • #1

    Gray Motor Experiment

    YouTube - EV GRAY Pulse Motor (Experiment # 0.5)

    YouTube - EV GRAY Pulse Motor (Experiment #1)

    FYI, I'm not claiming over unity ... I'm still in the early stages of the design. I was NOT able to get my motor to spin with all of the info (schematics Original/Modified) online. The explanation of the patent, helped me more in building the motor than just following the schematic.

    What are your opinions when you are looking at this modified schematic ? Just trying to point you into the right direction. I'm expecting you to say something when you are looking at the modified schematic.

    The problem that I am facing with the motor now is that the core overheats, and that the coils are cooler. Looking to change the core material.

    What material is out there that can be highly magnetized in a matter of Micro Seconds, and that can be demagnetized the moment the pulse gets terminated?

    Obviously, if the motor is spinning from the source 120Vac, it's running also from a battery with an inverter.

    Source (120Vac) - MOT (2800Vdc)-->

    A few weeks back I borrowed a scope, and found spikes on the coils reaching almost 7000V.

    I found that the only thing to measure this motor with, is the oscilloscope.

    Need some more "time", to buy a scope, to show you a picture of the spike.


    More info coming soon...
    Attached Files
    Last edited by tv4free; 02-19-2009, 03:45 PM.
    Tags: None
  • #2
    It does make more sence to connect diode 46 the way you show it. Otherwise, it would be exactly as 44. But why would you still need 42?

    One of John Bedini's diagrams shows the arcs in 42 differently from the patent. One of his arcs goes from the top electrode to the lower left, the other from the top to lower right.

    Some people feel 38 is needed if powering the motor with two sources, using a single phase-winding in the load.

    Comment

    • #3
      Forgot to mention the 42 is excluded completely.

      Comment

      • #4
        Just an alternative to what you've built. Bricks around gap are magnets.
        But in any case good job

        P.S. Here was my approach in building motor http://www.energeticforum.com/renewa...html#post44515
        Attached Files
        Last edited by mlurye; 02-19-2009, 04:02 PM.
        Mike

        Comment

        • #5
          Hi tv4free and welcome to the forum
          What core material are you usig now?
          It's better to wear off by working than to rust by doing nothing.

          Comment

          • #6
            I want to show you, the remaining of the #D-46. The diodes are 6amp 1000V. Originally there were 48 diodes. Now there are 40 left. One row (8 diodes) blew up. The questions is: "What damaged the diodes?" The amperage or the voltage. Think about it before you post. What change in the diodes configuration needs to be done, for them to survive the "inductive spike"???
            Attached Files
            Last edited by tv4free; 02-21-2009, 04:41 PM.

            Comment

            • #7
              2" 1/8" round Cold rolled IRON(the cheapest iron at a steel supply store).
              I'm trying to fix the mistake that I have made when I started to build this motor. Magnetic material is not allowed to be near the coils, except the CORE. I'm trying to get rid of the eddy currents that are being created in the core, by modifying the core as much as possible, picture attached. The RED L shape, in the video that supports the Stator-Coils, are not allowed to be there. (Should have used, plastic...etc). Now I am in love with the GRAY motor's case and rotor that has been built out of Teflon.
              Attached Files
              Last edited by tv4free; 02-19-2009, 04:57 PM.

              Comment

              • #8
                beautiful, please make a short video of step by step build so more people can start building and experimenting.

                Wow

                Comment

                • #9
                  So you have a solid iron core? No wonder that the core heats up. My Bedini selfoscillator has no cores, but if I place a bolt inside, it gets very hot really fast although only 2-3A are flowing through the circuit. I guess that a ferrite core would be best, but this material is almost impossible to machine. So I would recommend using silicon steel laminations.
                  It's better to wear off by working than to rust by doing nothing.

                  Comment

                  • #10
                    In the VIDEO if you look closely at the beginning, it's a solid iron core.
                    Now I'm working on modifying the core...
                    Powder ferrite mixed with epoxy, and fill up the core hole in the picture, that is why i drilled out the inside of the core. The questions is "Is ferrite the way to go, or is there something else out there, even better than the steel laminate? Did someone out there try to mix SOME MATERIAL POWDER with epoxy to build the core.
                    Last edited by tv4free; 02-19-2009, 07:40 PM.

                    Comment

                    • #11
                      So not a solid iron core. That is weird then, because ferrite powder mixed with resin shouldn't heat up very much. I have tried magnetite powder mix with resin, but that did not work well as an electromagnet nor as a core for genereator coil. I guess that there is nothing else that is cheap enough, with good performance and available than silkicon steel.
                      It's better to wear off by working than to rust by doing nothing.

                      Comment

                      • #12
                        Hi Tv4free, welcome, and excellent work


                        regarding the core, dare I suggest r60? it would make for an interesting test, and would be reasonably cheap.

                        I spotted the "L" shape steel brackets straight away. Their omission should improve the situation somewhat. It really is amazing what they can make with plastics these days. I am currently getting a rotor block machined from polyethylene which is cheap and strong.

                        Jet you say you didnt have much luck with magnetitie, but was that @ 3000v? It may be more suitable @ HV while decreasing heat produced. Certain mixes of magnetite and steel filings could give better results.

                        I originally thought this replications cores were formed in a mold and were some mixture of resin/magnetic material. The colour of them was slightly misleading, I assume they are machined from a solid block now. Drilling them out is an interesting idea.

                        Tv4free please take a look at the following pages from user Hoptoad. Particulary page 4 on the internal link. Interesting results with a hollow core of dynabolt material. http://www.totallyamped.net/adams/



                        Regards
                        Last edited by ren; 02-19-2009, 08:00 PM.
                        "Once you've come to the conclusion that what what you know already is all you need to know, then you have a degree in disinterest." - John Dobson

                        Comment

                        • #13
                          Maybe the special coil configuration is the key ?
                          Just an idea...

                          http://www.energeticforum.com/renewa...html#post43737

                          Comment

                          • #14
                            I have never stated that I have used magnetite or that I did not have any luck with it. Read my above statements, about what I have tried, and what I am trying to use now.
                            Last edited by tv4free; 02-19-2009, 08:09 PM.

                            Comment

                            • #15
                              no, Jetijs said above that he had used it (magnetite), I was posing the question to him.

                              Also, are you sure its BEMF (or CEMF) that is blowing your diode? Interesting thread by Aaron on the difference between BEMF and inductive spikes on this forum.
                              "Once you've come to the conclusion that what what you know already is all you need to know, then you have a degree in disinterest." - John Dobson

                              Comment

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