#Repairing my drone

31 messages · Page 1 of 1 (latest)

left tangle
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Hey everyone, after a vital mistake on my part, I am here replacing my ESC on my iflight chimera 7 pro.
I had a few questions and was wondering if someone could help guide me through a small part of this.

  1. when I first took apart the drone, and got to ESC, after taking the ESC if I noticed a small capacitor under the esc. The capacitor was not attached to anything rather loose in a small compartment under the ESC. (Picture for example) I was wondering is this is important to the ESC and quad? I was wondering why it is not attached?

1.1 After receiving the new ESC the compositor was attached securely to it? (See picture) This has gotten me a bit confused and I am wondering if I should try and remove the compositor, or I should leave it on?

  1. After removing the old ESC, there was yet another capacitor soldered in to the pads along with the two positive and negative wires that make up the intake current for the battery. (See the picture) I no longer have that old ESC, so i am having to hold the wire and the capacitor for example to whare it was soldered to the pads. I am wondering if this needs to be also replaced onto the pad along with the new wire and ESC?

  2. I am kind of intimidated, with the fact I’m going to have to solder 12 different wires onto a new ESC board. I have the right equipment to do so, but with the fact I have never soldered much I am kinda worried. As last time I believe I caused a short in the ESC pads on the motor I had to replace causing the ESC to flame up and short. I am still not exactly sure what cuased the smoke and flames, but since it was on the corner of the ESC whare I had to replace the mottor and soldered new wires I think it was me.

If anyone could provide information and guidance it would be really appreciated, and I don’t just say that to say it, I really mean it. I need information on this.

Thank you.

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glad dawn
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hey @left tangle 👋

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thats a lot to unpack, lets take it one thing at a time

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1: The capacitor stuck under the esc must have fallen off, take the old one out so you have room for the new one.

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Now, how much does that clear up for you?

left tangle
glad dawn
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I did not expect it either, now I guess we found a drawback with neatly mounting the capacitor in that hole like that.. If the ESC moves, the capacitor falls of :P

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Whats your next question? Something about capacitors too that i didnt completely understandd?

left tangle
# glad dawn Whats your next question? Something about capacitors too that i didnt completely...

Yes, sorry about that, my grammar is not amazing. On the old ESC there was a capacitor soldered in along with the wire the connects the battery to the ESC. I am wondering is I need to also solder in a new capacitor along with the new wire to the ESC? I have looked a a few videos and diagrams. And since I have seen this capacitor on all the the chimera 7 quads. I highly assume that it needs it. But also I am wonder. Why?

glad dawn
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thats why they are so small then, makes sense

left tangle
glad dawn
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in that case yes, you would need to solder that one on too like it was on the old ESC.
capacitors just help smoothen out the voltage spikes, especially on a large quad like the chimera running 6s you definitely want those

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it would fly without but its a peace-of-mind thing

left tangle
glad dawn
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ie, you give full throttle and hit a branch - all that power has to go somewhere

left tangle
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Uh. That dose not sound good haha

glad dawn
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this is a simplified explanation of it, im not an electrical engineer.. but it's universally agreed upon that we want them on our builds :P

left tangle
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That makes a lot more sense now thanks.

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I have one more question tho. For now haha

glad dawn
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sure go ahead

left tangle
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I believe the last ESC blew up because of me, I had to replace the motor on it. So that ment I had to remove the old mottor wires and solder. And replace it with new ones. Now, the motor is the same as a the old one 2209 1250Kv xing motor. I don’t know much about how electric motors work I wired the new motor that I had to replace in the same as all the other ones look. Never crossed any wires. So I’m wondering, is it the way I wired it? Or is because of maybe some solder was touching?

glad dawn
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It's not because the way it is wired, it's a PWM signal with 3 wires. It either spins one way or the other, swap 2 wires and it spins the other.

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It is possible that you had some solder bridges that caused it yea

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my advice to you is to invest in a soldering practice board (diatone makes some for example, they are often sold in FPV shops)
another thing to get is a smokestopper, the Vifly Shortsaver 2 is a great one. You use it after soldering on your drone and if there is a short somewhere it almost always prevents any damagee.

left tangle
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I appreciate it. I will look into them. Thank you for your time.

glad dawn
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np, good luck 🤞

left tangle
# glad dawn np, good luck 🤞

Hey, sorry to bother you again. But I was wondering if you had any ideas for extending a motor wire like 1-2mm. Haha. I cut it to short

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Never mind, I have found a YouTube video on how to fix.. thank you