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Old Sep 26, 2012, 01:12 PM
How high will it go?
antslake's Avatar
Greenwood Lake NY
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Better way to wire anti-spark device

Don't know if this has been thought of before, but I made a diagram that shows a more effcient way of wiring up anti-spark devices on high voltage applications that will save you time, money and material. No modification needs to be done to your battery packs.
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Last edited by antslake; Sep 26, 2012 at 01:19 PM.
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Old Sep 26, 2012, 01:22 PM
An itch?. Scratch build.
eflightray's Avatar
South Wales U.K.
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Interesting, but I would like to see how you do one in reality, (photos), as cable flexibility including the resistor section can be important.
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Old Sep 26, 2012, 01:33 PM
How high will it go?
antslake's Avatar
Greenwood Lake NY
Joined Oct 2003
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I haven't done one yet, but I don't see there being a problem as the resistor wire is going to be light gauge and very flexible. Your concern would be identical either way you wire it. I can wire up one this week and take some pictures.
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Old Sep 26, 2012, 01:47 PM
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What's the big deal? It's been done much the same way for years.
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Old Sep 26, 2012, 02:14 PM
How high will it go?
antslake's Avatar
Greenwood Lake NY
Joined Oct 2003
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I have yet to see a wiring diagram like the one I posted. Usually modification is needed to both battery pack and esc wiring requiring lots of materials and time to do, especially if you have several battery packs. Similar to this:
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Old Sep 26, 2012, 02:22 PM
How high will it go?
antslake's Avatar
Greenwood Lake NY
Joined Oct 2003
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Also an article just published in Model Aviation pg94 also shows the less effective way of doing this. I wrote to the author of the article to explain my way.

I also just noticed on the RC-warbirds site, they have the same diagram that I just made for bullet connectors, but use that last one I posted for deans? I had never seen this before. Kind of figured I wasn't the first one to think of this.
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Old Sep 26, 2012, 04:51 PM
just gotta mess with it!
2Doggs's Avatar
North West Louisiana
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The only downside I can see is the extra bulk of the additional connector. I use 4mm bullet connectors on my 450 heli packs, and I'm not sure I could fit another connector inline - but then there's not much of a spark with my little 450 packs.
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Old Sep 26, 2012, 05:35 PM
How high will it go?
antslake's Avatar
Greenwood Lake NY
Joined Oct 2003
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Well it's one more connector if you don't have one, but if you do it the other way it's going to be a lot less connectors and a lot less work to set up all your packs. That was the point, not whether you need one or not. The spark is not a good thing.
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Old Sep 26, 2012, 05:53 PM
just gotta mess with it!
2Doggs's Avatar
North West Louisiana
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Yes, no offense intended, I can see the overall benefit of only having to mod the ESC, and keeping all the packs standard. I was just saying the additional bulk of the extra connector was the only downside I could think of. When I get around to building a 600 heli, I'll definitely consider adding the anti-spark device, if the ESC doesn't already have one built in.
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Old Sep 26, 2012, 06:07 PM
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To me, the bullet connectors from esprit models seems to provide the simplest method of preventing the spark.

http://www.espritmodel.com/jeti-afc-...s-4mm-75a.aspx

But, I'm cheap, and a simple resistor on my current bullet connectors will suffice.
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Old Sep 26, 2012, 08:22 PM
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Kingston, Canada
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The Turnigy Dlux 80 amp ESC has an arc supressor built in where a red wire coming out of it is touched to the main plus wire before you plug it in. Works very well

Gord.
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Last edited by flypaper 2; Sep 26, 2012 at 08:32 PM.
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Old Sep 26, 2012, 10:06 PM
How high will it go?
antslake's Avatar
Greenwood Lake NY
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Quote:
Originally Posted by flypaper 2 View Post
The Turnigy Dlux 80 amp ESC has an arc supressor built in where a red wire coming out of it is touched to the main plus wire before you plug it in. Works very well

Gord.
I have that very ESC in the marine model and I could never get the connection made fast enough after touching, and would get a spark anyway. In other words, there is no way (the way it came) to make the resistor connection, and then the main connection without breaking the resistor connection.
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Old Sep 26, 2012, 10:11 PM
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http://scriptasylum.com/rc_speed/nospark.html even gives you a resistor calculator
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Old Sep 26, 2012, 10:43 PM
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Kingston, Canada
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Antslake: I had the same problem till I took a bit of heatshrink peeled back where the wire solders to the Deans. Now I hold the jumper wire to that till I connect the Deans. No problem.

Gord.
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Old Sep 27, 2012, 12:33 PM
An itch?. Scratch build.
eflightray's Avatar
South Wales U.K.
Joined Mar 2003
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This looks like a simple one, though it means the resistor lead is exposed and 'live' -

http://www.rcgroups.com/forums/showp...69&postcount=3

It's from this thread - anti spark in the Castle Creations vendor forum.
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