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  1. #1

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    New CDI - opensource project JMJ and Bigboat

    Finaly we can release the new CDI
    Only the testfunction is not yet avalible, it is not reliable enough.


    CU, Rob - www.modelbouw.gompy.net

  2. #2

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    RE: New CDI - opensource project JMJ and Bigboat

    I no speaka the dutch...no comprehende....please put in engish also. Question.... why release somthing that is not ready??????? Capt,n Bone Head[:-]
    Imagination is far more important than knowledge. Albert Einstein.

    http://www.lambertsrc.com/

  3. #3

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    RE: New CDI - opensource project JMJ and Bigboat

    Gee looks to me like the left side is Dutch and the right side is English, OR I've learned to read Dutch
    TKG
    Too much power is just about right.

  4. #4

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    RE: New CDI - opensource project JMJ and Bigboat

    TKG: You are right. On my puter screen it shows the Dutch side untill you use the bottom bar to slide the english side in view. Thanks Have a good one out there in the wide open West. Capt,n
    Imagination is far more important than knowledge. Albert Einstein.

    http://www.lambertsrc.com/

  5. #5

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    RE: New CDI - opensource project JMJ and Bigboat

    On my puter screen it shows the Dutch side untill you use the bottom bar to slide the english side in view.
    Wat kind of screen do you have......2 inch and e resolution of 320x160 ?
    CU, Rob - www.modelbouw.gompy.net

  6. #6
    KenLambert's Avatar
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    RE: New CDI - opensource project JMJ and Bigboat

    on my screen I have to leave it minimized or the white space will blind you , 2- 21 " screens. they work great for cad programs and working on websites but a little much for rcu .
    website
    www.lambertsrc.com
    Super Tiger conversions
    thanks Kenneth

  7. #7

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    RE: New CDI - opensource project JMJ and Bigboat

    This is pretty cool. It would be even better if I knew what it all means and how to actually do it. Maybe someone out there can put it all the information together in a book called "How to make a CDI for Dummies", I'd probably buy a copy....LOL. At any rate, it really is cool that Bigboat has put this together and is sharing it with us. I'm sure there are some who actually understand it.

  8. #8

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    RE: New CDI - opensource project JMJ and Bigboat

    Please read this topic
    Allmost every question you have was answert.
    BTW, JMJ needs also a lott of credit !
    If he didn't help me with the software, there was probley no cdi at all.
    CU, Rob - www.modelbouw.gompy.net

  9. #9
    Mitty's Avatar
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    RE: New CDI - opensource project JMJ and Bigboat

    I would gladly second the thankfull folks.Great job.Best thing is that boat and JMJ decided to do this project as freeware.Folks like that are moving the hobby forward.
    Peace out and Thanks alot!

    Mitty
    http://aviaportal.net is biggest online community of avitors.

  10. #10

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    RE: New CDI - opensource project JMJ and Bigboat

    Bigboat: Why do some pages come on screen the right size and some do not fit at all. Like the ones I get from Flying Giants? Hey ....I am not a computer wiz...but can work magic on engines. I just tunned a 3 cylinder Mercury outboard. It now runs the best it has in 3 years. Capt,n
    Imagination is far more important than knowledge. Albert Einstein.

    http://www.lambertsrc.com/

  11. #11
    KenLambert's Avatar
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    RE: New CDI - opensource project JMJ and Bigboat

    how about a 6cylinder inline mercury outboard , what would you suggest doing to get more out of it?
    website
    www.lambertsrc.com
    Super Tiger conversions
    thanks Kenneth

  12. #12

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    RE: New CDI - opensource project JMJ and Bigboat

    I never worked on a six cylinder Merc. I would start by just getting all the carbon out of exhaust ports and maybe open them up some. There may be a after market exhaust system with more of a tunned pipe effect. She is going to be very hard on your pocket book for gas. Thats why I went 4 stroke all the way. Even my little kicker engine is 4 cycle. Capt,n
    Imagination is far more important than knowledge. Albert Einstein.

    http://www.lambertsrc.com/

  13. #13

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    RE: New CDI - opensource project JMJ and Bigboat

    Have yoy tried this one on a real engine, how many RPMs?

  14. #14

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    RE: New CDI - opensource project JMJ and Bigboat

    It runs on a weedeather engine and I have about 1000 / 1500 rpm more as usual.



    CU, Rob - www.modelbouw.gompy.net

  15. #15

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    RE: New CDI - opensource project JMJ and Bigboat

    Nice photo for sure. Now can you explain about some of the neat goodies hooked to the engine. Maybe make labels before you take photo. Thanks Capt,n
    Imagination is far more important than knowledge. Albert Einstein.

    http://www.lambertsrc.com/

  16. #16

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    RE: New CDI - opensource project JMJ and Bigboat

    But how many RPMs is that?

  17. #17

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    RE: New CDI - opensource project JMJ and Bigboat

    Why so many fuel lines? What is all the wires for...ect? Thanks Capt,n
    Imagination is far more important than knowledge. Albert Einstein.

    http://www.lambertsrc.com/

  18. #18

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    RE: New CDI - opensource project JMJ and Bigboat

    A weedeather makes about 7000 rpm, now I can make allmost 9000 rpm.
    The cdi can handle >30.000 rpm without any problem.
    CU, Rob - www.modelbouw.gompy.net

  19. #19

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    RE: New CDI - opensource project JMJ and Bigboat

    Please tell me what kind of wire did you use in the tranfeormer, in mm please.

  20. #20

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    RE: New CDI - opensource project JMJ and Bigboat

    AWG24 = 0.5mm
    AWG30 = 0.25mm
    CU, Rob - www.modelbouw.gompy.net

  21. #21

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    RE: New CDI - opensource project JMJ and Bigboat

    re Using a fluro power supply transformer for the coil.
    On the CDI page
    http://www.modelbouw.gompy.net/newcdi/newcdi.htm

    mention is made of using transformer from here:-
    http://www.electroniccity.com/shoppi...65&brandinc=58

    In Australia I have found what looks similar or the same (good price):-
    http://www.jaycar.com.au/productView....asp?ID=SL2868

    On the CDI web rewinding is mentioned-
    " Unfortunately the transformer cannot be used without rewinding the coils "

    Is this coil totally stripped of wire and rewound as per the torroidal?

    So is the fluro supply merely supplying a E-Core?

    cheers Jeff

  22. #22

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    RE: New CDI - opensource project JMJ and Bigboat


    Is this coil totally stripped of wire and rewound as per the torroidal?

    So is the fluro supply merely supplying a E-Core?
    Yes this is a e-core transformer and yes you have total rewind him.....sorry.
    But I can't find a cheaper e-core without winds.
    CU, Rob - www.modelbouw.gompy.net

  23. #23

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    RE: New CDI - opensource project JMJ and Bigboat

    Re Suitable hall effect sensor
    New to electronics - understand the basics!

    I have seen mention of this Hall Sensor in the thread:-
    "Also I want to use the H501 Hall switch (Unipolar type) from www.Conrad.de with the ordering code 185120-62"


    Is this essential?
    I have found this hall sensor-
    http://www.jaycar.com.au/productView.asp?ID=ZD1902
    __________________________________________________ _________________
    UGN3503U Hall Effect Sensor

    A miniature sensor to accurately track extremely small changes in magnetic flux density - changes generally too small to operate hall effect switches.

    Specifications:
    - Operating voltage: 4.5 - 6V DC
    - Supply current: Typ. 9mA
    - Output voltage: Typ. 2.5V DC
    - Output resistance: 50
    - Size: 4.5(W) x 4.5(H) x 1.5(D)mm
    Applications include notch sensor, current monitor, gear tooth sensor, etc.
    __________________________________________________ __________
    Or should I go for the switch type?
    http://www.jaycar.com.au/productView.asp?ID=zd1900
    __________________________________________________ __
    This device consists of a Hall Effect semiconductor sensor separated across a small gap by a magnet. In its normal state the Hall sensor (with inbuilt output transistor) is conducting. It will sink up to 40mA between the impressive temperature range of -40 to +150 degrees C. When an iron vane is introduced into the gap between the Hall element and the magnet, the output transistor switches off. The sensor is hermetically sealed, resistant to petroleum products and incorporates metal bushed mounting hols to facilitate fitting to a carrier plate, bracket etc. It is ideal as the commutator for an electronic ignition; however it has many other usage areas. Lead connections: Red V+, Black earth, Green signal (on/off).
    __________________________________________________ _________________

    My concern is that from reading about hall there are analogue and logic level hall devices.
    What paremeters should I be looking for?
    Cheers Jeff

  24. #24

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    RE: New CDI - opensource project JMJ and Bigboat

    Thankyou Rob for the reply on the E-Core - I will buy the fluro p/s and use the rewound transformer.

    I am now researching locally (Australia) available hall switch.

    From my reading to directly use hall effect with pic it has to be switch (high low) and not sensor.

    Sensor could be used if pulse is conditioned as in 5Bears tim4 circuit or use of IC's?

    cheers Jeff

  25. #25

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    RE: New CDI - opensource project JMJ and Bigboat

    re suitable hall switch
    Am I looking for the correct type of hall switch?

    I think I may be closer with this
    UGN3177UA
    http://www.ortodoxism.ro/datasheets/...stems/3175.pdf

    These Hall-effect latches are temperature-stable and stress-resistant
    sensors especially suited for electronic commutation in brushless dc
    motors using multipole ring magnets. Each device includes a voltage
    regulator, quadratic Hall voltage generator, temperature compensation
    circuit, signal amplifier, Schmitt trigger, and an open-collector output on
    a single silicon chip. The on-board regulator permits operation with
    supply voltages of 4.5 volts to 18 volts. The switch output can sink
    10 mA. With suitable output pull up, they can be used directly with
    bipolar or MOS logic circuits.

    These are available for resonable price in Australia ~AUS$5
    cheers Jeff


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