--- Sequence of Events ---
I had gone for an all-day crawl session on Saturday because...
...Austin had 37deg for a high Feb.8, and then one week later we hit 90! :shock:
But I only got 5 minutes of runtime and the stock servo said goodbye.
(and it was frankly WAY too warm for February - I was actually sweating as I trudged back to the car)
After work yesterday I got home and hooked the JX BLS-12V7146 servo directly to the power take-off and tested it, centered it and bolted the SSD servo horn to it.
Added a 6" servo extension and then hooked it up again for a final test before closing up the radio box and attaching the steering link...
...and MUSHROOM CLOUD!
Good thing I already have a HobbyWing 1080 / Holmes TrailMaster Sport 550 21t waiting to install in there.
Still, it's frankly amazing to me how much smoke came out - it was at face level up on my computer desk - managed to yank the LiPo out pretty damn quick - SO glad I didn't damage my 27" 144Hz gaming monitor or high-end speakers that were inches away!
I don't recommend anyone buy any of the "12V" JX servos, that's the 3rd I'm aware of that fried upon connection to a 3S power source, and they claim 11.1v or 14v is safe.
IIRC, I was the first to actually order one of those servos - a few months before it became known that they were basically rip-offs of JRH's original Holmes SHV500 v1 servo design (but done somewhat poorly).
I thankfully only paid $55 shipped for it, but didn't get around to trying it out for ages because the servo I bought it as a backup for never quit on me (yep, you guessed it - the HH SHV500 v1 in my Revolver-powered Bomber).
Had I known it was going to take out my other electronics when plugged in I certainly wouldn't have bought the damn thing.
So now I get to clean the melt residue off the TRX-4 and worry about if the micro-servos are ruined as well...
Heck -I may set it up without any of the other channels - install lockers and/or keep it single speed - not sure yet.
I had gone for an all-day crawl session on Saturday because...
...Austin had 37deg for a high Feb.8, and then one week later we hit 90! :shock:
But I only got 5 minutes of runtime and the stock servo said goodbye.
(and it was frankly WAY too warm for February - I was actually sweating as I trudged back to the car)
After work yesterday I got home and hooked the JX BLS-12V7146 servo directly to the power take-off and tested it, centered it and bolted the SSD servo horn to it.
Added a 6" servo extension and then hooked it up again for a final test before closing up the radio box and attaching the steering link...
...and MUSHROOM CLOUD!
Good thing I already have a HobbyWing 1080 / Holmes TrailMaster Sport 550 21t waiting to install in there.
Still, it's frankly amazing to me how much smoke came out - it was at face level up on my computer desk - managed to yank the LiPo out pretty damn quick - SO glad I didn't damage my 27" 144Hz gaming monitor or high-end speakers that were inches away!
I don't recommend anyone buy any of the "12V" JX servos, that's the 3rd I'm aware of that fried upon connection to a 3S power source, and they claim 11.1v or 14v is safe.
IIRC, I was the first to actually order one of those servos - a few months before it became known that they were basically rip-offs of JRH's original Holmes SHV500 v1 servo design (but done somewhat poorly).
I thankfully only paid $55 shipped for it, but didn't get around to trying it out for ages because the servo I bought it as a backup for never quit on me (yep, you guessed it - the HH SHV500 v1 in my Revolver-powered Bomber).
Had I known it was going to take out my other electronics when plugged in I certainly wouldn't have bought the damn thing.
So now I get to clean the melt residue off the TRX-4 and worry about if the micro-servos are ruined as well...
Heck -I may set it up without any of the other channels - install lockers and/or keep it single speed - not sure yet.
