04-16-2021, 04:32 PM | #21 | |||
I wanna be Dave Join Date: Jun 2017 Location: Humboldt county
Posts: 4,482
| Re: Dual ESC Quote:
Quote:
Quote:
If you do an external BEC you only need 1 BTW Last edited by HumboldtEF; 04-16-2021 at 04:40 PM. | |||
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04-18-2021, 12:39 PM | #22 |
Newbie Join Date: Dec 2020 Location: Coarsegold
Posts: 41
| Re: Dual ESC
Sigh. Okay. It seems I am going to want an external BEC. I did not think about this, all RCs where the servo is "directly" powered by the receiver are actually powered by internal BECs on the ESCs ... The clouds have parted and rays of light are shining through. Not even with dual ESCs? I am imagining the receiver and one servo being powered by one ESC, while the other servo is powered directly by the other ESC. Basically positive and negative wires would go directly to the servo from the ESC, and signal wires for both ESC and servo would still go to the receiver. Some soldering required ... This would not work? Thanks again for your time, you have really helped me understand these things. |
04-19-2021, 04:09 PM | #23 |
Newbie Join Date: Dec 2020 Location: Coarsegold
Posts: 41
| Re: Dual ESC
... Like this. ESC1 is wired directly into SERVO 1 in the diagram below: ... Would this work? Last edited by aPpYe; 04-19-2021 at 06:36 PM. |
04-19-2021, 05:54 PM | #24 |
I wanna be Dave Join Date: Jun 2017 Location: Humboldt county
Posts: 4,482
| Re: Dual ESC
Theres no diagram in your post. I understand what you're saying and I dont know if thats possible or not. Maybe in theory something like that could work possibly or the ESC may not work at all. Going to all that trouble only to use and Internal BEC while risking potential damage to the ESC just makes no sense IMHO. If you want simple look for direct power servos and forget about the whole BEC thing. Or use a dual bypass adapter https://holmeshobbies.com/electronic...s-adapter.html and external BEC. You're overthinking the crap out of this. I'd suggest you first nail down your ESCs and servos, from their you'll have a better idea of how to power your servos and what they might require (voltage and Amperage wise). Last edited by HumboldtEF; 04-19-2021 at 05:58 PM. |
04-19-2021, 06:37 PM | #25 |
Newbie Join Date: Dec 2020 Location: Coarsegold
Posts: 41
| Re: Dual ESC
... There we go. The diagram should be there now. Maybe I'll try this on some of my older hardware before hooking this into expensive new things. I don't see why it wouldn't work, anyway.
Last edited by aPpYe; 04-19-2021 at 06:43 PM. |
04-19-2021, 07:20 PM | #26 |
I wanna be Dave Join Date: Jun 2017 Location: Humboldt county
Posts: 4,482
| Re: Dual ESC
Yeah in theory that wiring should do what you want. I'll just say I've never heard of this even being attempted which is why I'm hesitant to say go for it. Definitely something to test on cheap or used ESCs to be safe.
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04-19-2021, 08:08 PM | #27 | |
Newbie Join Date: Feb 2021 Location: US
Posts: 25
| Re: Dual ESC Quote:
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04-19-2021, 10:40 PM | #28 |
Newbie Join Date: Dec 2020 Location: Coarsegold
Posts: 41
| Re: Dual ESC
I kinda thought that would be the case. I don't see anything frying with this setup anyway. Splicing a wire from CH2 to the negative between ESC1 and SERVO1 would be the plan I guess?
Last edited by aPpYe; 04-19-2021 at 10:46 PM. |
04-20-2021, 11:52 AM | #29 | |
Newbie Join Date: Feb 2021 Location: US
Posts: 25
| Re: Dual ESC Quote:
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04-20-2021, 12:20 PM | #30 | |
I wanna be Dave Join Date: Jun 2017 Location: Humboldt county
Posts: 4,482
| Re: Dual ESC Quote:
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04-20-2021, 12:22 PM | #31 | |
I wanna be Dave Join Date: Jun 2017 Location: Humboldt county
Posts: 4,482
| Re: Dual ESC Quote:
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04-20-2021, 12:58 PM | #32 | |
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| Re: Dual ESC Quote:
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04-20-2021, 01:26 PM | #33 |
I wanna be Dave Join Date: Jun 2017 Location: Humboldt county
Posts: 4,482
| Re: Dual ESC
the issue is your idea of splicing the two red wires together. this will make it impossible to have only one ESC connected and power for the purpose of calibrating. I know its 420 but we're getting way off in the weeds here, and not in a productive way. holmes hobbies dual mini esc calibration Last edited by HumboldtEF; 04-20-2021 at 01:30 PM. |
04-20-2021, 02:10 PM | #34 |
Newbie Join Date: Dec 2020 Location: Coarsegold
Posts: 41
| Re: Dual ESC
420? Lol, at least I think I get it! ... Anyway, I don't see any red wires spliced together in your schematic, above. I had understood that was a big no no, frying electronics, smoking out garages, burning houses down, exploding, and sad little puppies everywhere ... I do crack myself up! Anyway. The common ground in your schematic would be in the receiver then? I guess that would be better than splicing the ground wire. |
04-20-2021, 02:38 PM | #35 | |
Newbie Join Date: Feb 2021 Location: US
Posts: 25
| Re: Dual ESC Quote:
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04-20-2021, 02:42 PM | #36 | |
Newbie Join Date: Feb 2021 Location: US
Posts: 25
| Re: Dual ESC Quote:
Don't worry, any burn outs are not that bad. ESC's contain very little smoke. Ask me how I know. Oh, by the way... never cross the red and black wires on an ESC... | |
04-20-2021, 03:18 PM | #37 | |
Newbie Join Date: Feb 2021 Location: US
Posts: 25
| Re: Dual ESC Quote:
After all the trouble I went through to make brake lights work, I can see why so many skip this stuff and buy ready made kits. On the other hand I really enjoy the challenge. | |
04-22-2021, 01:07 PM | #38 |
Newbie Join Date: Dec 2020 Location: Coarsegold
Posts: 41
| Re: Dual ESC
Are you guys talking about calibrating the end points on the throttle, or about setting features like drag brake rate, etc with the program card? If it is just the initial calibration, I figure I can just do these one at a time and then wire them up the way I want afterwards. I could also use a connector instead of soldering ESC1 and SERVO1 red wires together, this way I can temporarily move ESC1 to the receiver (after unplugging ESC2, of course) for recalibration or reprogramming. Why does one ESC need to be powered off for calibration of the other? |
04-22-2021, 01:28 PM | #39 | |
Newbie Join Date: Dec 2020 Location: Coarsegold
Posts: 41
| Re: Dual ESC Quote:
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04-22-2021, 01:53 PM | #40 | |
I wanna be Dave Join Date: Jun 2017 Location: Humboldt county
Posts: 4,482
| Re: Dual ESC Quote:
I'm referring to esc calibration. not sure the exact reason but you can only do 1 at a time. | |
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