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Thread: Bedini-Cole 1971 to 1984 built from lab notes WINDOW MOTOR

  1. #41
    Hi Bro,
    Just noticed this thread. I have ricks window B kit. This looks like what you are trying to replicate. it's a great kit to run many experiments w/ and a great torque motor.
    I am posting this comment in hopes of getting some feedback from John B. or someone else in the know.
    I remember reading a post either from JB himself or some one right next to him that the geometry on this kit was all wrong. My thinking on that was this will never be a self-runner. I am hoping that it might get cleared up here what he meant by that statement.
    I've played around with it quite a bit, but have not invested in much wire to put my ideas to the test. Too many other things going on.
    The coil hence wire is everything aside from the geometry and switch.

    Bro, I really like the last ckt layout you designed, very nice!

    On the actual board - aren't those leads/wires too small/thin? Also, I couldn't tell where you put the rectifying diodes?
    Thanks for sharing this build.
    Kind Regards,
    Patrick A.


    Quote Originally Posted by brodonh View Post
    Hi All,
    At this point I need some expert advice.
    I wound 3 coils, 120T apiece, #19 wire.
    In parallel it is an amp hog and not feasable.
    In series seems to be the right direction.
    I desire to wind 3 coils to run slow and with hi torque.
    Do I need to go with parallel:
    Many turns
    Smaller wire
    Or do I need to go series:
    #15 or so wire and 350-400T total?

    I would greatly appreciate a tip or 2 form John Bedini.
    I understand hooking trannies in parallel and beta matching.
    I need a master's tip on the coils for torque.
    It's hard for me to believe that John B's 10,000rpm machine has coils in parallel.

    Speculation from non builders will not help at this point.

    The balancing job on the rotor is great.
    I had it running at 1350rpm (26lb rotor) the 2 frame end plates were attached to the shaft only, not the the base or to one another.
    Totally stable. Also, was able to tune the cct so that at 38v 1.1A there was no heat.
    The only heat on the whole rig was the bearings were slightly warm to touch and transferred to the shaft

    The 3 coil run pic is the rig running at 1350rpm as discribed.
    I'll be making a timing wheel and hall holder that matches the pvc frame.

    Attachment 3369Attachment 3370

    Thanks,
    bro d

  2. #42
    Quote Originally Posted by min2oly View Post
    Hi Bro,
    Just noticed this thread. I have ricks window B kit. This looks like what you are trying to replicate. it's a great kit to run many experiments w/ and a great torque motor.
    I am posting this comment in hopes of getting some feedback from John B. or someone else in the know.
    I remember reading a post either from JB himself or some one right next to him that the geometry on this kit was all wrong. My thinking on that was this will never be a self-runner. I am hoping that it might get cleared up here what he meant by that statement.
    I've played around with it quite a bit, but have not invested in much wire to put my ideas to the test. Too many other things going on.
    The coil hence wire is everything aside from the geometry and switch.

    Bro, I really like the last ckt layout you designed, very nice!

    On the actual board - aren't those leads/wires too small/thin? Also, I couldn't tell where you put the rectifying diodes?
    Thanks for sharing this build.
    Kind Regards,
    Patrick A.
    Hi Patrick,
    I'm on my way to church right now, but will give and share all info ASAP.
    My next question is what was John B's amp draw at 10,000rpm.
    I'll post this afternoon.
    bro d

  3. #43
    Quote Originally Posted by min2oly View Post
    Hi Bro,
    Just noticed this thread. I have ricks window B kit.

    [[What size are the mags on the B kit? Mine are 1x2x6"
    I guessed that JB's are the same.
    I havn't got any feedback from him on this.

    How do you get great torque with it?

    You can read that I've been getting some tips from TomC and JohnK.

    So far I'm not close to what the vid shows.

    He's claiming 10,000rpm at 36v input.

    The best that I've seen so far is 1900 at 42v input.

    My rotor is balanced but I left the grease in the bearings.]]

    This looks like what you are trying to replicate. it's a great kit to run many experiments w/ and a great torque motor.
    I am posting this comment in hopes of getting some feedback from John B. or someone else in the know.

    [[I started this thread in hopes of getting some tips from JohnB.]]

    I remember reading a post either from JB himself or some one right next to him that the geometry on this kit was all wrong. My thinking on that was this will never be a self-runner. I am hoping that it might get cleared up here what he meant by that statement.
    I've played around with it quite a bit, but have not invested in much wire to put my ideas to the test. Too many other things going on.
    The coil hence wire is everything aside from the geometry and switch.

    Bro, I really like the last ckt layout you designed, very nice!

    On the actual board - aren't those leads/wires too small/thin? Also, I couldn't tell where you put the rectifying diodes?

    [[The wire leads are too thin and I redid the layout so it has a bridge in the middle.
    I'll post that very soon.]]

    Thanks for sharing this build.
    Kind Regards,
    Patrick A.
    [[Thank you for your thank you,]]

    bro d

  4. #44
    Redo of straight based WM cct

    straight base redo.jpg
    Last edited by brodonh; 05-11-2014 at 10:37 AM.

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