Complete new CDI - website open
10-11-2010 | 11:18 PM
#201
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RE: Complete new CDI - website open
ORIGINAL: gr8flyer55
Hi Rob..
I finally have time to post the ''How To'' for the toroid coil on the CDI boards.
I start by taking a 1/8'' wooden dowel rod cut to 1 foot in length to use as a shuttle for passing thru the center of the toroid. I cut a V-notch in both ends to keep the wire on the dowel as I prepare the wire. I usually wind about 30 turns of #36 guage wire onto the shuttle which gives me 30 feet of wire for the secondary winding on the toroid. This can be seen in the first picture. I wrap a 1/8'' slice of masking tape around the toroid on the perimeter which I trap one end of the wire to start winding so it won't slip. Leave about 1'' of wire hang out from the core to solder to the board when you are finished.
Proceed to wind in a clockwise rotation, keeping the turns close together. The next picture shows some turns on the core. As you wind the secondary, try not to loop the wire or get any kinks in it which could cause broken wires or cracked insulation and a shorted pair of turns later.
On the first layer around the toroid, I can get approximately 150 turns of wire, keeping it snug and without too many gaps in the windings. Take your time and take a few breaks now and then, writing the number of turns down so you can resume with a correct count of the turns. The second last picture is 400 turns of #36 wire on the core which completes the secondary windings. Wrap a strip of tape around the perimeter again trapping the last loose end of the wire, then trim it to about 1'' again.
The primary is wound next with #26 guage wire with 15 turns and taped again so it doesn't unravel from the core. Trim both ends of this winding to about 1''.
Next is the feedback winding from #36 wire for 6 evenly spaced turns around the core. Make sure you wind all turns in the same clockwise direction and keep them neat. When all turns are wound, take an exacto knife blade and scrape about 1/8th inch of the insulation from each winding end for soldering later to your board.
When all finished, your coil should look similar to the last picture.
I hope this helps those of you trying to wind these little gems. Any questions, just ask...
John
Hi Rob..
I finally have time to post the ''How To'' for the toroid coil on the CDI boards.
I start by taking a 1/8'' wooden dowel rod cut to 1 foot in length to use as a shuttle for passing thru the center of the toroid. I cut a V-notch in both ends to keep the wire on the dowel as I prepare the wire. I usually wind about 30 turns of #36 guage wire onto the shuttle which gives me 30 feet of wire for the secondary winding on the toroid. This can be seen in the first picture. I wrap a 1/8'' slice of masking tape around the toroid on the perimeter which I trap one end of the wire to start winding so it won't slip. Leave about 1'' of wire hang out from the core to solder to the board when you are finished.
Proceed to wind in a clockwise rotation, keeping the turns close together. The next picture shows some turns on the core. As you wind the secondary, try not to loop the wire or get any kinks in it which could cause broken wires or cracked insulation and a shorted pair of turns later.
On the first layer around the toroid, I can get approximately 150 turns of wire, keeping it snug and without too many gaps in the windings. Take your time and take a few breaks now and then, writing the number of turns down so you can resume with a correct count of the turns. The second last picture is 400 turns of #36 wire on the core which completes the secondary windings. Wrap a strip of tape around the perimeter again trapping the last loose end of the wire, then trim it to about 1'' again.
The primary is wound next with #26 guage wire with 15 turns and taped again so it doesn't unravel from the core. Trim both ends of this winding to about 1''.
Next is the feedback winding from #36 wire for 6 evenly spaced turns around the core. Make sure you wind all turns in the same clockwise direction and keep them neat. When all turns are wound, take an exacto knife blade and scrape about 1/8th inch of the insulation from each winding end for soldering later to your board.
When all finished, your coil should look similar to the last picture.
I hope this helps those of you trying to wind these little gems. Any questions, just ask...
John
BCCHI
10-12-2010 | 04:32 AM
#202
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RE: Complete new CDI - website open
Hi Bill...
I doubt if you remember me since it was a long time ago, but back in the 80's when I first started making ignitions, Dennis Lipsett and I used to buy all of our supplies from you.
I hope things go well in your recovery from the surgeries. There are few things in life that bring us pleasure like old friends and hobbies. Hopefully you will be able to get back to health soon and enjoy the things you love.
John
I doubt if you remember me since it was a long time ago, but back in the 80's when I first started making ignitions, Dennis Lipsett and I used to buy all of our supplies from you.
I hope things go well in your recovery from the surgeries. There are few things in life that bring us pleasure like old friends and hobbies. Hopefully you will be able to get back to health soon and enjoy the things you love.
John
10-22-2010 | 04:42 PM
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From: xnot applicable, AUSTRALIA
RE: Complete new CDI - website open
Photo of rearranged board for transistor ignition. Made changes to allow a bit more room around some of the components available here. Still need free time to do any testing yet.
Can someone explain why the schematic for the timing board shows pin 7 and 8 opposite to pdf for the microcontroller. Does it mean that transmitt from the micro must go to receive on the RS232 port and if so what effect does this have when connecting to the TTL/USB converter?
Cheers ...Jeff
Can someone explain why the schematic for the timing board shows pin 7 and 8 opposite to pdf for the microcontroller. Does it mean that transmitt from the micro must go to receive on the RS232 port and if so what effect does this have when connecting to the TTL/USB converter?
Cheers ...Jeff
10-22-2010 | 04:56 PM
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From: Alkmaar, NETHERLANDS
RE: Complete new CDI - website open
RS232 is a protocol, NOT a port.
RS232 is +10 and -10 Volt switching and in serial sending bits.
The PCB is missing two capacitors for the cristal.
The original schematic use a resonator.
If your using a cristal, you have to use allways capacitors.
If your using a resonator, the capacitors are into the resonator.
RS232 is +10 and -10 Volt switching and in serial sending bits.
The PCB is missing two capacitors for the cristal.
The original schematic use a resonator.
If your using a cristal, you have to use allways capacitors.
If your using a resonator, the capacitors are into the resonator.
10-23-2010 | 06:21 AM
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From: xnot applicable, AUSTRALIA
RE: Complete new CDI - website open
O.K.....with reference to the crystal, I couldn't see any mention of that anywhere so I will fix..
So pin 7 on micro goes to RS232 DB9 pin 3 and Pin 8 on micro goes to RS232 DB9 pin 2. Is that correct?
If so, is it the same for the TTL/USB converter?
So pin 7 on micro goes to RS232 DB9 pin 3 and Pin 8 on micro goes to RS232 DB9 pin 2. Is that correct?
If so, is it the same for the TTL/USB converter?
10-23-2010 | 06:54 AM
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From: Alkmaar, NETHERLANDS
RE: Complete new CDI - website open
The PIC can't handle -10 and +10 Volt, so you can't use the RS232 port of your computer without a interface.
A PIC can only handle Voltages of 0 and 5 Volt with a very low current.
The MAX232 is a IC wat will make -10 and +10 Volt the right signal you need for the PIC, we call this a RS232 to TTL-modul.
If you gone use USB to TTL modul, you can connect the modul 1 on1 to the PIC.
http://www.electronics.gompy.net/CDI/Schema-RS232-1.jpg
A PIC can only handle Voltages of 0 and 5 Volt with a very low current.
The MAX232 is a IC wat will make -10 and +10 Volt the right signal you need for the PIC, we call this a RS232 to TTL-modul.
If you gone use USB to TTL modul, you can connect the modul 1 on1 to the PIC.
http://www.electronics.gompy.net/CDI/Schema-RS232-1.jpg
10-23-2010 | 06:41 PM
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From: xnot applicable, AUSTRALIA
RE: Complete new CDI - website open
O.K.....I understand that. So here are the connections as you have just explained. (pic 1)
Please note pin numbers shown are from your schematics.
However, they differ from the pdf from the manufacturer. (pic 2)
Please note pin numbers shown are from your schematics.
However, they differ from the pdf from the manufacturer. (pic 2)
10-24-2010 | 04:32 AM
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From: Alkmaar, NETHERLANDS
RE: Complete new CDI - website open
TX USB2TTL convertor must be connect to RX PIC
RX USB2TTL convertor must be connect to TX PIC
One end send other end received, the schematic and pdf and pcb will be OK.
RX USB2TTL convertor must be connect to TX PIC
One end send other end received, the schematic and pdf and pcb will be OK.
10-24-2010 | 10:43 AM
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From: Hamburg,
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RE: Complete new CDI - website open
Hi Rob..
Can the older timer boards use the monitor software just to track rpm and timing angles? (not to program tables and updates etc.) It looks like the pins are there but I am not sure..
We are almost moved into the new house now. Another week and I'll be back into testing and building.
John
Can the older timer boards use the monitor software just to track rpm and timing angles? (not to program tables and updates etc.) It looks like the pins are there but I am not sure..
We are almost moved into the new house now. Another week and I'll be back into testing and building.
John
10-24-2010 | 04:20 PM
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From: xnot applicable, AUSTRALIA
RE: Complete new CDI - website open
ORIGINAL: Gompy
TX USB2TTL convertor must be connect to RX PIC
RX USB2TTL convertor must be connect to TX PIC
One end send other end received, the schematic and pdf and pcb will be OK.
TX USB2TTL convertor must be connect to RX PIC
RX USB2TTL convertor must be connect to TX PIC
One end send other end received, the schematic and pdf and pcb will be OK.
Cheers ..Jeff
10-31-2010 | 11:48 AM
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From: Alkmaar, NETHERLANDS
RE: Complete new CDI - website open
New software updates avalible.
http://www.electronics.gompy.net/cdi/setup-38400.zip
http://www.electronics.gompy.net/cdi/CDI-38400.zip
http://www.electronics.gompy.net/cdi/setup-38400.zip
http://www.electronics.gompy.net/cdi/CDI-38400.zip
10-31-2010 | 03:43 PM
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From: Alkmaar, NETHERLANDS
RE: Complete new CDI - website open
The TCI have a resriction of 12,500 rpm if the dwell is 4msec.
A normal ignitioncoil use ~4msec dwell, race ignitioncoils less.
The table show you the time left to use for dwell.
I hope to get some feedback soon.
A normal ignitioncoil use ~4msec dwell, race ignitioncoils less.
The table show you the time left to use for dwell.
I hope to get some feedback soon.
11-01-2010 | 03:47 PM
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From: Alkmaar, NETHERLANDS
RE: Complete new CDI - website open
BTW, at the moment we have the point of pickup removed.
You have to place the magnet and pickup in line and the piston in TDC.
We need the time of the 40 degrees to make right calculations.
If you have alllready placed the pickup somewhere befor TDC, you have this correct it with the easystart and table.
With the point of pickup the max rpm will be between 4000 and 8000 rpm, depent of pulswidth and dwell.
You have to place the magnet and pickup in line and the piston in TDC.
We need the time of the 40 degrees to make right calculations.
If you have alllready placed the pickup somewhere befor TDC, you have this correct it with the easystart and table.
With the point of pickup the max rpm will be between 4000 and 8000 rpm, depent of pulswidth and dwell.
11-01-2010 | 04:44 PM
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From: xnot applicable, AUSTRALIA
RE: Complete new CDI - website open
Removed old setup program and installed new setup program but it came up with error code 2908. Then also another error message with "could not open key: Unknown \components\ 269623DED5F18C1777857CD372D4A630\A71E87070566F924A 9B72E24F6C152FF
verify that you have sufficient access to that key,or contact your support personel."
verify that you have sufficient access to that key,or contact your support personel."
11-01-2010 | 04:46 PM
#220
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RE: Complete new CDI - website open
Hi Rob,
I downloaded the latest version and installed. I programmed the pic with the new hex. everytime I try to send updated info the the pic from the ignition controll software I get a error and the ignition controll crashes. I uninstalled it and reverted back to a eariler version and all is good.
I downloaded the latest version and installed. I programmed the pic with the new hex. everytime I try to send updated info the the pic from the ignition controll software I get a error and the ignition controll crashes. I uninstalled it and reverted back to a eariler version and all is good.
11-01-2010 | 04:53 PM
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From: Alkmaar, NETHERLANDS
RE: Complete new CDI - website open
@Charlie have you set your port to 38400 baud ?
@Jeff, do you have the latest .net installed ?
For both, I have send your complains to the programmer.
@Jeff, do you have the latest .net installed ?
For both, I have send your complains to the programmer.
11-01-2010 | 05:07 PM
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From: Alkmaar, NETHERLANDS
RE: Complete new CDI - website open
@Jeff, this is the version you need of .net
http://www.microsoft.com/downloads/e...displaylang=en
BTW Jeff, have you de-install in the normal way with the window uninstal program or yust removed the files from your HD ?
@Charlie, have you set the port to the right com-port ?
http://www.microsoft.com/downloads/e...displaylang=en
BTW Jeff, have you de-install in the normal way with the window uninstal program or yust removed the files from your HD ?
@Charlie, have you set the port to the right com-port ?
11-01-2010 | 06:40 PM
#224
RE: Complete new CDI - website open
Guys, my eyes are limited for reading (all the previous posts) right now. Do any of you fellows plan to sell a CD ignition for radio controlled airplane use? CH Ignitions here is ten USA has closed. They can do only advice. So we are looking for a source of CD units. The average advance is from 5 to 28 degrees. We use 4.8 volts for power. Can even double the input voltage. I myself would be satisfied with a fixed timing. Being lite & reliable is the main thing. What do you have? Thanks,Capt,n PS this should be a shielded ignition.
11-02-2010 | 02:34 AM
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From: xnot applicable, AUSTRALIA
RE: Complete new CDI - website open
ORIGINAL: Gompy
@Jeff, this is the version you need of .net
http://www.microsoft.com/downloads/e...displaylang=en
BTW Jeff, have you de-install in the normal way with the window uninstal program or yust removed the files from your HD ?
@Charlie, have you set the port to the right com-port ?
@Jeff, this is the version you need of .net
http://www.microsoft.com/downloads/e...displaylang=en
BTW Jeff, have you de-install in the normal way with the window uninstal program or yust removed the files from your HD ?
@Charlie, have you set the port to the right com-port ?
Uninstalled old setup program using windows uninstaller from control panel. Thought about possibility of problem with .Net while on my way to work. Finished for the day now so I will have another attempt and look more closely at .Net
Thanks for input.... Jeff
