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Old Aug 28, 2010, 06:19 AM
nick 30
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spark eliminator

here are some photo's of the spark eliminator i hve made from a diagram found on this forum

i have used male & female 3.5mm bullet connectors, 14g wire and 20 ohm, 0.65w resistor's to make this

all wire's MUST be soldered together to get a strong hold and contact, i tried to video it working but the sparks did'nt show up well
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Last edited by nick30head; Aug 28, 2010 at 06:25 AM.
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Old Aug 28, 2010, 07:49 AM
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Australia, VIC, Sunshine West
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i dont mind the hearing the large crack!! keeps you on your toes, lol
i get this with 2s packs, cant imagine how large it is with 6s packs
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Old Aug 28, 2010, 10:06 AM
nick 30
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massive, will be doing this to my 3s packs aswell
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Old Sep 26, 2010, 10:03 AM
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spark eliminator

Also on Offshore is a indepth info on this subject. I copied both sites info and both are good!!!!
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Old Sep 26, 2010, 08:47 PM
RELAX. You'll live longer
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You should hear the crack on 12s. Nearly deafens ya. Not mine mind you, but one of our club members.
Some say that the spark is a healthy thing. It proves that your caps are in working order, as that's what causes the flash, the inrush current charging the caps.
Cheers.
Paul.
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Old Sep 27, 2010, 02:55 AM
nick 30
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i completely forgot about this thread, i've installed safety loops om my boats and use 6mm bullets, certainly reduces the spark
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Old Sep 29, 2010, 05:39 PM
RELAX. You'll live longer
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Brisbane- Australia
Joined Jul 2007
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hi Nick.
If you have installed safety loops, an easy way to add the resistor is to solder it across the wires inside the boat.
That way, as soon as you plug your batteries & ESC together (with the safety loop out) the circuit is complete & the caps charge. No extra messy wires or connectors.
Just be sure to remove the batteries at the end of the day. Don't leave them connected for a week as I did once as the resistor will discharge your pack. Mine went down to 1.7V/cell. But they came up OK as it was such a light discharge rate. A picture to show the resistor.
Cheers.
Paul.
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Old Sep 29, 2010, 06:56 PM
Air, Ground & Water
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Canada, ON, Rockland
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I read somewhere that the VALUE of the resistor was IMPORTANT because it could trick some ESC auto-LVC setting to not function properly. Did you notice anything about this.
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Old Sep 29, 2010, 08:45 PM
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Canada, ON, Whitby
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Electrons will take the path of least resistance, which will be through the main bullet and not the resistor. If you're really concerned about it, you could always unplug the resistor loop after plugging in the main bullet.
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Old Sep 30, 2010, 02:47 AM
nick 30
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i've never noticed that to happen
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Old Oct 02, 2010, 05:09 PM
RELAX. You'll live longer
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Brisbane- Australia
Joined Jul 2007
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Freechip.
That seems to be with the Castle Creations & Mamba ESCs. I don't thnk the Shultz like a resistor either.
Here's a calculator for the resistor & connections.
Note that it says it is mainly for high voltages. Anything up to 6s should be fine without them.
I don't use resistors on any of my boats. I only tried it on the little mono but I've sold that one.
http://scriptasylum.com/rc_speed/_nospark.html

Paul.
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