ESC advise

[DwightSchrute]

this is the second esc i've broken in 2 weeks. the first was a mamba, the second, a tekin. i need to figure out what's going on because i don't think it's from faulty equipment.

i've got my esc zip-tied down on the esc tray with about 1/4" of foam under it. however, both times, after a big jump, it lands, loses all power, and nothing works.

the monster mamba i figured out was the power wires came off of the board. no biggie. i was doing some huge air.

the tekin issue came after a 20ft jump(roughly) and when it landed, one of the esc wires had come lose from the connecter, and i thought, "no biggie, i'll fix it tonight"...it didn't short on any of the posts either because everything is insulated with heatshrink. there aren't any exposed areas where a short could occur.

so i resoldered it on and then i went to turn it on, and nothing. no power at all. i hooked up the hotwire, and it dosen't recognioze the esc. the only thing i'm getting is one or all of the caps are charging because i';m getting a spark when i hook up a 6S...but not a 4S. weird.

so i'm baffled...

anyone have any ideas or how i can better protect my esc?

[bdebde]

BUBBLE WRAP!....... couldn't resist!

[What's_nitro?]

Well, all I can think of is use more foam under the ESC. Try 1/2" of foam and see if it helps cushion the landings. What kind of foam is it? Weatherstripping works well as it has some memory foam-like qualities. If you're using the normal gray open-cell stuff it probably isn't providing enough cushion.

[What's_nitro?]

Originally Posted by bdebde

BUBBLE WRAP!....... couldn't resist!

That only works ONCE!!!

[BrianG]

Not sure what happened to the MMM internally, but the RX8 has apparently had some issues with the type of solder being used, and it can crack/let go under heavy forces. Not a whole lot you can do really except use more/spongier foam. Weatherstripping, like suggested, works pretty well. It is softer than other stuff like craft foam, so it gives more.

[DwightSchrute]

thanks guys. i had no idea about the tekin having issues.

what sucks is it's brand new and the warranty period is expired.. i've had it for more than 120 days...i just never used it. live and learn i guess.

i wonder if tekin would replace it out of warranty if i explained the issue. what sucks is i just found another rx8 i forgot i had. i wonder if it has the same issue. i might call tekin to see if they'll swap me out for 2 with better soldering.

the weather stripping is a great idea. i'll try that as soon as i get goin' again.

thanks again guys.

[BrianG]

I'd call Tekin. The worst they'll say is that the warranty expired. If that's the case, you could oper her up and see about fixing it yourself...

[DwightSchrute]

i'll give them a ring tomorrow. if it's out of warranty, i'm not gonna pay the $93 replacement fee. that's too expensive imo.

you're right though, if they won't warranty it, it'll give me and my buddies at my lhs a crack at seeing if we can find the issue. i better get to the liquor store.


thanks again for the advise.