Hey all,

I drove all the way from Southern California to Moab, Utah today for a car commercial and I get set up, put the drone on the ground and arm, and put some throttle in to do a test hover and motor 4 burns out and drone flips over and hits the pavement.   Awesome....

I've got the black box log link here (it's the 7 second long flight, flight number 4 out of 5 : https://drive.google.com/file/d/1C9uhkwT...sp=sharing

Can anyone tell me if it was infact my motor that went bad? or if it was a problem from the ESC? 

It was the only motor that was hot when I touched it right after the burn out. 

SPECS:
DYS Samguk Shu 2306 2800kv Motors
Tekko32 F3 45A Mini BL_32 4in1 ESC
Tattu 4S 1550Mah

I know Snow posted a threat about this ESC having problems but also mentioned that 4S builds are largely unaffected and that's what I'm running so im crossing my fingers that it's not the ESC.

Picture of the ESC, I dont have a good feeling about what someone is going to say about this...

https://imgur.com/a/mbUbENT

Looks like the FET might be burnt. Can you verify or take a close up picture? 

@OP - sorry to hear of the disaster. Did you take a second quad to the shoot? This is generally why people who do commercial photo shoots with their Phantoms and Mavics tend to take along at least 2 or 3 drones, so they have a spare backup.

It's interesting to see that Holybro appear to have added some thermal stickers to the top of each MOSFET to help identify when one has burned. I don't see any information about this in any of the product specifications and no-one seems to have reviewed this newest version yet.

(14-Aug-2020, 10:48 AM)SnowLeopardFPV Wrote: @OP - sorry to hear of the disaster. Did you take a second quad to the shoot? This is generally why people who do commercial photo shoots with their Phantoms and Mavics tend to take along at least 2 or 3 drones, so they have a spare backup.

It's interesting to see that Holybro appear to have added some thermal stickers to the top of each MOSFET to help identify when one has burned. I don't see any information about this in any of the product specifications and no-one seems to have reviewed this newest version yet.

I’m actually working for a larger drone unit that is flying the Inspire 2 in a more professional capacity, I was just flying mine for recreation in my free time. And yea I’ve learned this lesson the easy way (sort of) if I ever do actual commercial work on my own I’ll be better prepared with a 2nd drone and back ups of everything.

Im super bummed... this was a brand new ESC and it just fails like this!? With that being said I’m in the market for a new stack because I’d imagine since I bought them together that RDQ is going to want me to return the FC and ESC together. Hopefully I’ll come out of this rather financially unscathed with just needing to replace a motor but man this sucks. I’m on a travel job and we’re doing Moab and Flagstaff AZ, both really beautiful places to fly and I was so prepared to get some epic shit!

I know it's not the solution to your actual problem, but if you are in any one location for a few days you could just buy a BNF quad to be delivered to you which would tide you over. At least that would get you up in the air and you wouldn't miss flying acro in any of those amazing places.

I think RDQ will just replace the ESC. I'm sure they did that before for other people with ESC issues that were part of a stack, unless I'm thinking of a different supplier. If they do it will save you having to de-solder everything from your FC (assuming they want the old stuff back that is).

(14-Aug-2020, 12:55 PM)SnowLeopardFPV Wrote: I know it's not the solution to your actual problem, but if you are in any one location for a few days you could just buy a BNF quad to be delivered to you which would tide you over. At least that would get you up in the air and you wouldn't miss flying acro in any of those amazing places.

I think RDQ will just replace the ESC. I'm sure they did that before for other people with ESC issues that were part of a stack, unless I'm thinking of a different supplier. If they do it will save you having to de-solder everything from your FC (assuming they want the old stuff back that is).

I told them I’d like to return the whole stack because I don’t want the same ESC again, I won’t trust it. And I don’t want to wire a different brand 4 in 1 ESC and this FC isn’t an AIO, go figure. So I’m deciding between ordering an AIO FC and buying separate ESCs cause This is the second bad ESC I’ve gotten and when it goes bad it’s impossible to replace it without getting rid of the FC and then you’re almost building a new drone...

Some pics of my tragedy:
https://imgur.com/gallery/Jq7jWON
https://imgur.com/gallery/FMmeIEf

I’m pretty confident in my soldering abilities, should I just go single ESCs? Much cheaper to replace if you blow one.

(14-Aug-2020, 12:55 PM)SnowLeopardFPV Wrote: I know it's not the solution to your actual problem, but if you are in any one location for a few days you could just buy a BNF quad to be delivered to you which would tide you over. At least that would get you up in the air and you wouldn't miss flying acro in any of those amazing places.

And I brought my entire kit with me so I’ve got my soldering Iron and everything. I might buy a new FC and ESC set up and replace my motor and rebuild this puppy as we’re going to flagstaff for a day or two but I’m not sure it’s worth it as we’ll be there and gone and I don’t have much time to fly. I’m just writing this trip off. Next time I come to Moab I’ll rip it I guess

(14-Aug-2020, 12:55 PM)SnowLeopardFPV Wrote: I think RDQ will just replace the ESC. I'm sure they did that before for other people with ESC issues that were part of a stack, unless I'm thinking of a different supplier. If they do it will save you having to de-solder everything from your FC (assuming they want the old stuff back that is).

Hey Snow! 

So I just heard back from RaceDayQuads about this ESC and they're saying they'll replace it for me but it's out of stock and will take 3-5weeks to come back in stock (no thanks....) Or, they'll give me store credit for it's value. Here's my dilemma -- I can't go individual ESCs like i'd like to at this point because my FC is the Kakute F7 Mini and it isn't an AIO so I need to get a 4 in 1 ESC but at the same time I dont want to and can't get the same ESC that has the same pinout as my FC so my question is:

What if any 4 in 1 ESCs can I pair with my Kakute F7 Mini? And how would I go about doing it? Any existing guides you know of? 

Thanks again!

(15-Aug-2020, 07:14 PM)Opatry Wrote: Hey Snow! 

So I just heard back from RaceDayQuads about this ESC and they're saying they'll replace it for me but it's out of stock and will take 3-5weeks to come back in stock (no thanks....) Or, they'll give me store credit for it's value. Here's my dilemma -- I can't go individual ESCs like i'd like to at this point because my FC is the Kakute F7 Mini and it isn't an AIO so I need to get a 4 in 1 ESC but at the same time I dont want to and can't get the same ESC that has the same pinout as my FC so my question is:

What if any 4 in 1 ESCs can I pair with my Kakute F7 Mini? And how would I go about doing it? Any existing guides you know of? 

Thanks again!

You can go with an 4in1. You will just need to rearrange the harness. Not a big issue.

I always have good luck with Spedix and Aikon. They probably will have more noise than the Kakute.

(15-Aug-2020, 07:47 PM)voodoo614 Wrote: You can go with an 4in1. You will just need to rearrange the harness. Not a big issue.

I always have good luck with Spedix and Aikon. They probably will have more noise than the Kakute.

It seems that Speedix is a pretty common and therefore trusted brand. Maybe ill look into that. But generally speaking any of the harnesses should have the same wires in them but just not in the right order? If all I have to do is rearrange the harness wires that's simple enough, but Id want to be 100% confident that when I rearrange it all and plug her in for the first time that Im not gunna smoke my whole drone   . 

Hopefully I find something that works well! wish me luck!

Some ESCs only have a 6-pin connector and others have an 8-pin connector. The Holybro FC stacks use 8-pin FC-to-ESC harnesses. Either way, once you get the ESC, post back here which one you got and we can do a pin-to-pin mapping for you, or you can try to draw one up yourself and we can take a look to see if it's correct.

You need to be really careful replacing those pins. If you can practice on a similar harness before modifying the the one you are actually using. If any of the "catches" on either the connector casing or the female connector get bent out of shape that pin will become loose and be compromised in flight. Personally, I avoid having to redo pins on a harness. However, some manufacturers have the foresight to provide an "incomplete" harness where one side is bare connector so you can define the pinout yourself.

(16-Aug-2020, 06:56 PM)the.ronin Wrote: You need to be really careful replacing those pins.  If you can practice on a similar harness before modifying the the one you are actually using.  If any of the "catches" on either the connector casing or the female connector get bent out of shape that pin will become loose and be compromised in flight.  Personally, I avoid having to redo pins on a harness.  However, some manufacturers have the foresight to provide an "incomplete" harness where one side is bare connector so you can define the pinout yourself.

I guess I could practice on the harness that is provided with the Kakute stack because RDQ didn't want me to send the burnt ESC back to them so I've got that and all of it's spare parts. Not a bad idea! 

I'm so nervous to pick an ESC now because I don't want to get desyncs and death roll or something and lose my quad somewhere.

(16-Aug-2020, 12:04 PM)SnowLeopardFPV Wrote: Some ESCs only have a 6-pin connector and others have an 8-pin connector. The Holybro FC stacks use 8-pin FC-to-ESC harnesses. Either way, once you get the ESC, post back here which one you got and we can do a pin-to-pin mapping for you, or you can try to draw one up yourself and we can take a look to see if it's correct.

So im looking at this as a potential candidate:

https://www.racedayquads.com/collections...0-4in1-esc

It is a 20x20 which is what I need and it's BLHeli 32, it's speedix which i've only heard good about, it's got 6/8/10 pin headers that come with it so I can make whatever harness I need, it's 6S ready incase I want to upgrade my motors to 6S (which I might because I only have 3 functional 4S motors at the moment), am I missing anything compatibility wise?

One serious looking esc.