Taming the dreaded 10s spark - Page 2 - RC-Monster Forums

simplechamp · 01.05.2011, 01:44 AM

BrianG has a calculator and wiring diagram for the spark eliminating circuit on his RC calc website, and it is noted on there that you can't do that with Castle ESCs.

josh9mille · 01.05.2011, 01:54 AM

I still dont see what the big deal is over the spark? Its really a non issue right?

simplechamp · 01.05.2011, 03:37 AM

Each time you see that spark the surface where the spark contacts gets pitted out. The higher the voltage, the bigger the spark, the worse the pitting. It hurts the continuity and life of the connectors.

DrKnow65 · 01.05.2011, 10:36 AM

I was considering using some dielectric grease on my CC 6.5mm bullets. Partly because they are so difficult to connect and disconnect but also to see if it helped any with the sparking. I also have considered using a sacrificial connector to save my 6.5's, I have some mini-deans I've been using for my servo's and BEC that could be piggy backed on my battery/motor leads.

I'll give it all a try when my MM XL shows up and I pull out the MMM.

simplechamp · 11:58 AM

Kind of a tangent, but I just picked up some sets of those mini-size T-plugs for my Xray M18T and they are great. The regular T-plugs are too big, and the micro ones are too small, but the mini are juuuusst right for 1/18!

They would work out well as a sacrificial spark connector. This is the only place I've seen lately that has them.

http://www.progressiverc.com/index.p...emart&Itemid=1

01.05.2011, 02:44 PM

Quote:

Originally Posted by BrianG

Yes, the spark is still there because no matter if the ESC is on or off, the caps are the parts that cause it.

What i was getting at though is that the switch i had linked would be installed between the batteries and the esc switched to off essentially isolateing the batteries from the caps until everything is connected then turn it on. I dont care if a spark occurs inside the switch as long as i doesnt happen when i plug the batts in.

simplechamp · 01.05.2011, 03:03 PM

You are correct, it won't happen when you plug the batts in, it will happen when you turn on the switch. You will just be transferring the spark point to the switch contacts instead of the battery connectors. IMO it doesn't make much sense to me to use a $33 switch as the "sacrificial" sparking point to protect the main connectors that cost probably no more than $5.

Arct1k · 01.05.2011, 03:20 PM

Ask BB16 or Mike I can't help jumping when plugging in the Baja on 8s with the size of the spark. I've worked out a trick though to just close my eyes for a split seccond when you do the first connect - No jumping!

brushlessboy16 · 01.05.2011, 03:44 PM

Quote:

Originally Posted by Arct1k

Ask BB16 or Mike I can't help jumping when plugging in the Baja on 8s with the size of the spark. I've worked out a trick though to just close my eyes for a split seccond when you do the first connect - No jumping!

That was hilarious..

As he is telling us about how he has gotten used to the large spark of 8s, he plugs his baja in and darn near levitated.

brainanator · 01.05.2011, 04:19 PM

^ lol

PBO · 01.05.2011, 04:39 PM

Spark = good
No spark = bad

Even 6S is good to plug in at night. Only plugged 8S during the day & that's worth seeing too

01.05.2011, 04:58 PM

Quote:

Originally Posted by simplechamp

You are correct, it won't happen when you plug the batts in, it will happen when you turn on the switch. You will just be transferring the spark point to the switch contacts instead of the battery connectors. IMO it doesn't make much sense to me to use a $33 switch as the "sacrificial" sparking point to protect the main connectors that cost probably no more than $5.

At least i wouldnt witness the horror, i would just hear it.