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New CDI - opensource project JMJ and Bigboat

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New CDI - opensource project JMJ and Bigboat

Old 07-31-2011, 07:19 AM
  #1426  
gr8flyer55
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Default RE: New CDI - opensource project JMJ and Bigboat

Personal preferences for timing curves can be addressed to Nyemi. He has offered numerous times to accommodate requests.

Another project to be added in the near future is an inline tachometer, which simply plugs into the hall sensor cable with a Y-cable for testing your engines performance figures. If anyone has a tested design to add to this series of projects, let's see if it can be accomplished. I have one in mind to try with a 3 1/2 digit display. Only limit is top rpm readings. A 2 to 3 times per second sampling rate would serve our purposes very well. I am very interested in this add-on to the system.

John
Old 07-31-2011, 07:41 AM
  #1427  
Fly42
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Default RE: New CDI - opensource project JMJ and Bigboat

No schematic, no program, need other to make timing curve, maybe better to buy in shop a 25 dollar ready to use cdi
Old 07-31-2011, 08:53 AM
  #1428  
gr8flyer55
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Default RE: New CDI - opensource project JMJ and Bigboat

Schematic is almost ready. Program is completed and functioning perfectly. Please be patient as I get everything in one place to post. There is more to it than just posting what I have made. There are parts lists, documentation, board dimensions and yes actual pictures and a working system in a video all to be posted! If you have ever done a project like this, you know it doesn't take place in an instant. Besides, there are work schedules and I am not the only contributor to this project!
More people are involved than just myself. Nyemi wrote the software for the chip, I have the board design project and also do the live testing in my plane. Bluejets supplied my schematic drawing editor and board design software. Worth it? Yes!

John
Old 07-31-2011, 10:48 AM
  #1429  
Fly42
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Default RE: New CDI - opensource project JMJ and Bigboat

No prototype showing and who have test, only you ?
This is same opensource cdi from jmj and bigboat ?
Old 07-31-2011, 11:47 AM
  #1430  
COM
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Default RE: New CDI - opensource project JMJ and Bigboat


ORIGINAL: Fly42

No prototype showing and who have test, only you ?
This is same opensource cdi from jmj and bigboat ?

No not exactly. John has his own version of CDI and Timer board.
Old 07-31-2011, 12:14 PM
  #1431  
Fly42
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Default RE: New CDI - opensource project JMJ and Bigboat

Why not new topic ?
This cdi is old, poeple don not look anymore.
Old 07-31-2011, 12:31 PM
  #1432  
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Default RE: New CDI - opensource project JMJ and Bigboat

We should make a new thread. I'll post what I have there for building these boards. The cdi portion is my tried and true design from back in the late 1980's when I started making them. The timer board is new as Com has said. It works just like the CH Synchro Spark in the fact that it just plugs in-between the ignition and the hall sensor. Shrink wrap for protection, add connectors and you're good to go.

John
Old 08-01-2011, 08:20 AM
  #1433  
how_eee
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Default RE: New CDI - opensource project JMJ and Bigboat

really, you have to start new topic. This thread is very old, big and unuseful. its very difficult to find something here.
i am waiting for new topic with all info about your project. [8D]

dont forget to post here a link of new thread...
Old 08-01-2011, 08:46 AM
  #1434  
gr8flyer55
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Default RE: New CDI - opensource project JMJ and Bigboat

Ok, can someone start a new thread for the new timer and ignition? I have never done it.
We need a good title. Any suggestions?

John
Old 08-01-2011, 08:47 AM
  #1435  
gr8flyer55
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Default RE: New CDI - opensource project JMJ and Bigboat

Ok, can someone start a new thread for the new timer and ignition? I have never done it.
We need a good title. Any suggestions?

John
Old 08-01-2011, 09:44 AM
  #1436  
how_eee
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Default RE: New CDI - opensource project JMJ and Bigboat

DIY CD Ignition by gr8flyer55 and co.
if you agree this name, i will start it
Old 08-01-2011, 02:06 PM
  #1437  
gr8flyer55
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Default RE: New CDI - opensource project JMJ and Bigboat

Sounds good to me. Let's try it.

John
Old 08-01-2011, 07:49 PM
  #1438  
bcchi
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Default RE: New CDI - opensource project JMJ and Bigboat

Hi John,
I doub't it is just like the SS maybe close but thats it. I am still filling up box do you want it. If not going to the dump. Have sent Adrian five timing controls to try out. I no some are not good. Will send some to you.
BCCHI
Old 08-01-2011, 09:07 PM
  #1439  
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Default RE: New CDI - opensource project JMJ and Bigboat

Nice title,
Old 08-01-2011, 09:12 PM
  #1440  
gr8flyer55
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Default RE: New CDI - opensource project JMJ and Bigboat

Hi Bill...
Sent you a pm.
My timer will never replace th SS for sure, but it's working well for me.
It's the best I can do with my 25 years of tinkering experience!

John
Old 08-05-2011, 07:17 PM
  #1441  
bcchi
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Default RE: New CDI - opensource project JMJ and Bigboat


ORIGINAL: gr8flyer55

Hi Bill...
Sent you a pm.
My timer will never replace th SS for sure, but it's working well for me.
It's the best I can do with my 25 years of tinkering experience!

John
Hi John,
I told Adrian I would not turn thr wolves loose on him yet,but get ready,He will not have time to build ignitions he just got married.LOL
BCCHI (AMA 2500).
Old 08-22-2011, 08:37 AM
  #1442  
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Default RE: New CDI - opensource project JMJ and Bigboat

Bill do you think the first 2 weekd of September is going to be good for flying and camping in your area and Brooks lake area? We want to travel....but wife has a operation she might need to do. Will know more in a few days. J&D Hesperia Mi
Old 07-09-2012, 03:16 AM
  #1443  
dzik
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Default RE: New CDI - opensource project JMJ and Bigboat

Could someone send me a pcb for this?
http://www.modelbouw.gompy.net/newcdi/index.htm
Old 07-09-2012, 03:39 AM
  #1444  
Bigboat
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Default RE: New CDI - opensource project JMJ and Bigboat

http://www.electronics.gompy.net/
Old 06-29-2013, 09:40 PM
  #1445  
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Default RE: New CDI - opensource project JMJ and Bigboat

Rob,
Any suggestions for a 4 stoke CDI conversion? Wondering if the universal unit will work on a 4 stroke?
Thank you
Old 06-30-2013, 02:18 AM
  #1446  
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Default RE: New CDI - opensource project JMJ and Bigboat

To use the CDI with 4stroke you have only change the curve.
Old 06-30-2013, 09:21 PM
  #1447  
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Default RE: New CDI - opensource project JMJ and Bigboat


ORIGINAL: Gompy

To use the CDI with 4stroke you have only change the curve.
Which curve. Newbie to electronics here. Can you do this in the programming script?

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