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  • dambit
    replied
    Originally posted by glenn_aircooled View Post
    The unit runs so well - I must have fluked it. If I had the coil wrong would
    it still run and charge the battery.?
    Glenn.
    If you hook up a scope and see a h-wave with multiple spikes as opposed to one spike per "h", you have the coil wound for the opposite polarity. In this case it may just be easier to flip the magnets. All depends on how good your glue is.

    It will still charge your battery, but not very well.

    Cheers,

    Steve

    P.S. Your friends unit looks good. However he won't notice hardly any difference in performance if the batteries in the pic are the ones being charged. They are way to big for only 2 coils.
    Last edited by dambit; 08-27-2009, 07:47 AM.

    Leave a comment:


  • glenn_aircooled
    replied
    My Best Friend's unit has been upgraded to a two coiler.
    Have probably done this wrong ..... as it doesnt seem much better than a single
    coil. The electronics havent been fully mounted yet - this pic after first getting it going.
    Looks darn good though
    --------------------------
    I am struggling to get any good test data because I am bringing " Dead Car
    Batteries back to life ".
    Keep on losing my Primary Batt voltage [ because it has very little capacity ].
    So probably need to persist - bring batts up to usefullness and then do comparitive testing.
    Here's pic..........
    [ oh its an old bakelite trolley wheel with one bearing installed, 3 x 20mm dia ceramic magnets, 850 turns - now with two lots ]
    Glenn.
    Attached Files
    Last edited by glenn_aircooled; 08-27-2009, 07:01 AM. Reason: excuse- untidy

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  • glenn_aircooled
    replied
    Thanks Dambit and Nvisser, I will leave the magnets as they are.
    I really tried to wind the coil for North pole outward. I havent tested with
    compass, Just start of coil is wound clockwise viewing from working end.
    .
    The unit runs so well - I must have fluked it. If I had the coil wrong would
    it still run and charge the battery.?
    Glenn.

    Leave a comment:


  • nvisser
    replied
    Cant you just switch both the drive and trigger coil polarities( swop wires around)?

    Leave a comment:


  • dambit
    replied
    Hi Glen,

    Don't worry about the south poles facing out. As long as you wire the coils so that when it is energised the electromagnetic south pole is facing the ferrites, it will be fine. If you have wound the coils for north magnets, you will have to wind them in the opposite direction. You can't just turn them upside down. The trigger coil doesn't like it when you do that.

    Cheers,

    Steve
    Last edited by dambit; 08-26-2009, 12:20 PM.

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  • glenn_aircooled
    replied
    I discovered that Rare Earth magnets are not ideal for the SSG unit.
    I have replaced all the magnets with ceramic type ones.
    Fell for the North pole detection mistake.
    Did the old " North pole of earth must be a magnetic north pole " MISTAKE.....
    Just found out that :
    the Northern Pole of Earth is actually a South magnetic pole....
    I made three units... all with South poles facing outward.
    [ they all work really well , so dont know if I should worry about my mistake ].
    -
    Hey maybe because I live in the Southern Hemisphere - the ideal set-up is
    South Pole outward.
    - What do you recommend..?
    Should I re-fit magnets.?
    Glenn
    -
    -
    -p.s. better show pic of my latest unit runniing. Only one coil and 6 magnets thus far...goes like.... a machine...
    Attached Files
    Last edited by glenn_aircooled; 08-26-2009, 11:41 AM. Reason: add pic notes

    Leave a comment:


  • sebosfato
    replied
    hi guys i would like to invite you to read my thread there is a very good information about practical Lc circuits if you like please help donating.


    Thanks

    Leave a comment:


  • glenn_aircooled
    replied
    spinning and coil wound, this one will be only 600 turns.
    See what difference that makes.
    Former for coil there but wound one not shown. The wire on the
    reel is 0.4 mm DIA from Microwave TX coil...yes I unwound it
    Glenn
    Attached Files

    Leave a comment:


  • uusedman
    replied
    Originally posted by morpher44 View Post
    There is a lot of AC in the circuit ... and you need to make sure
    that it cannot JUMP, via skin effect, to places you don't want it to go.
    Check for any wiring where a short could be occurring -- arcing.

    Your load battery may be bad.
    I tried 2 batteries, and I know for sure that my load battery is fine. AC in the circuit?? i will check tonight and get back to you.

    thanks for your help

    Leave a comment:


  • glenn_aircooled
    replied
    Thanks for the tip, however , I tested for the North pole with a known North
    pole and it appears to repel very well from one face [ which is facing outward ]
    and the other face was very attracted to the North pole .
    -
    When testing , on the face which is outward, noticed that the North
    pole in my hand was attracted to either end - this I found strange.

    Will double check all this tomorrow , with your alert in mind - just
    in case I stuffed up.
    Cheers, Glenn.

    Leave a comment:


  • nvisser
    replied
    Hi Glenn
    I noticed from your photo that you used hdd magnets. That will not work properly as that magnets has the north pole on the one side and the south pole on the other in it`s lenght. If you cut it in half with a thin angel grinder blade it will work. As is you will have to position your coil`s core to one of the sides to get it to work properly

    Leave a comment:


  • glenn_aircooled
    replied
    Will be upgrading the electronics on mine, but first want to get the mechanics
    ready......
    So this is the start of the next one.
    Yes three rotors.
    So far have only got Rare earth magnets from old Disk drives for one.
    That's 6 so far.
    Just starting this one off with basics then upgrading.
    When all finished , there will be total of 18 magnets and 18 Coils
    -
    Another aspect I want is the shaft from the rotor to extend out the end
    of the structure. Wanting to try reed switches and mechanical heating systems
    attached.
    Glenn
    Attached Files
    Last edited by glenn_aircooled; 08-21-2009, 07:18 AM. Reason: pics

    Leave a comment:


  • morpher44
    replied
    thoughts

    Originally posted by uusedman View Post
    Yes, as soon as I connect the load battery, the amp draw goes up.
    any thoughts?
    There is a lot of AC in the circuit ... and you need to make sure
    that it cannot JUMP, via skin effect, to places you don't want it to go.
    Check for any wiring where a short could be occurring -- arcing.

    Your load battery may be bad.

    Leave a comment:


  • uusedman
    replied
    Originally posted by Sephiroth View Post
    Then I'm stumped there are plenty of reasons why the amp draw should go down when you connect the load battery, though I can't think of any reason why the amp draw would go up... does the amp draw go up as soon as you connect the load battery?

    Yes, as soon as I connect the load battery, the amp draw goes up.

    I am building a new circuit with a new power and trigger coil to see to compare and contrast.

    any thoughts?

    Leave a comment:


  • Sephiroth
    replied
    Originally posted by uusedman View Post
    I have neons burning the energy

    Then I'm stumped there are plenty of reasons why the amp draw should go down when you connect the load battery, though I can't think of any reason why the amp draw would go up... does the amp draw go up as soon as you connect the load battery?

    Leave a comment:

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