07-12-2021, 11:08 PM | #121 |
I wanna be Dave Join Date: Feb 2017 Location: My mothers basement
Posts: 2,128
| Re: Silent outrunner and ESC for less then $60
The iflight is getting hot? Personally I would use a smaller pinion. That way you not in sine start as much. But if the iflight esc is getting hot at low rpm the the only way to reduce the heat is to reduce the sine power in the code. This will make the motor slip more. The esc can run up to 95c no problem. You feel it as hot at around 70c Where did you read the limit is 1400kv? Where did you get the firmware? I did make one for the scx24 that was not v1.74 with the sine power turned way up. If you have that firmware then that is the problem. Try the 1.74 firmware. Sent from my SM-N986U using Tapatalk Last edited by Voodoobrew; 07-12-2021 at 11:14 PM. |
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07-12-2021, 11:58 PM | #122 | |
Rock Stacker Join Date: Jun 2020 Location: Jakarta
Posts: 55
| Re: Silent outrunner and ESC for less then $60 Quote:
The reason for 17t pinion is considering the gear reduction provided by the AR45, I will try a smaller pinion then I got the 1.74 firmware from here https://github.com/AlkaMotors/AM32-M...ware/releases/ Another thing, what is the difference between the file in your google drive 1.74 Dixie Partial folder, IFLIGHT_1.74-Dixie_PARTIAL.bin IFLIGHT_1.74.bin and IFLIGHT_1.74.hex, and which one should I flash with the config tool. Sorry for the newb questions. | |
07-13-2021, 03:00 AM | #123 |
Rock Crawler Join Date: Mar 2019 Location: Terrassa
Posts: 981
| Re: Silent outrunner and ESC for less then $60 |
07-13-2021, 05:48 AM | #124 | |
I wanna be Dave Join Date: Feb 2017 Location: My mothers basement
Posts: 2,128
| Re: Silent outrunner and ESC for less then $60 Quote:
If you got your bin file from github then the sine power is not maxed out for an scx24. I would imagine all 3 of those 1.74 bins are the same in my github. The only change I made from github was the dixie startup tone. I can make some bins with reduced sine power. We had to reduce the power on all the wraith esc's to lower the Temps. It's not unheard of for esc manufactures to make hardware changes, but my 55a iflight. Didn't run that hot. Also there is the possibility of maybe a hardware issue. Quality control on some quadcopter esc's is terrible. Are all the mosfets heating up the same. Sent from my SM-N986U using Tapatalk Last edited by Voodoobrew; 07-13-2021 at 05:55 AM. | |
07-13-2021, 07:48 AM | #125 |
Rock Stacker Join Date: Jun 2020 Location: Jakarta
Posts: 55
| Re: Silent outrunner and ESC for less then $60
Yes, it might be the case of running it to slow, and btw my rig is not scx24, it's GSpeed v3 chassis with 3 gears gearbox and AR45 axles and I ran it on 3s. I think the heat is even on all the mosfet. It might also be caused by conformal coatings and heat shrink tubing over it that blocked the heat dissipation. I'm considering the idea of removing the heat shrink tubing, or cut it partially and remove/scrape the conformal coat from the top of mosfets. If the heat issue doesn't cure then I might consider the heatsink option. Sent from my Redmi Note 8 Pro using Tapatalk |
07-13-2021, 07:55 AM | #126 | |
Rock Stacker Join Date: Jun 2020 Location: Jakarta
Posts: 55
| Re: Silent outrunner and ESC for less then $60 Quote: Sent from my Redmi Note 8 Pro using Tapatalk | |
07-13-2021, 08:24 AM | #127 | |
I wanna be Dave Join Date: Feb 2017 Location: My mothers basement
Posts: 2,128
| Re: Silent outrunner and ESC for less then $60 Quote:
https://drive.google.com/file/d/1bYN...ew?usp=sharing I am pretty sure I didn't use the capacitor and didn't have heat issues. But I mostly used it for a smaller motor. The I flight 55A layout is not especially great for power routing and this adds to the heat issues. Last edited by Voodoobrew; 07-13-2021 at 08:31 AM. | |
07-13-2021, 09:14 PM | #128 | |
Rock Stacker Join Date: Jun 2020 Location: Jakarta
Posts: 55
| Re: Silent outrunner and ESC for less then $60 Quote:
Thank you for your help, and I do love the dixie horn starting sound. Keep up the good work. | |
07-13-2021, 11:06 PM | #129 |
I wanna be Dave Join Date: Feb 2017 Location: My mothers basement
Posts: 2,128
| Re: Silent outrunner and ESC for less then $60
Unfortunately I don't know how to smooth out the transition. Sent from my SM-N986U using Tapatalk |
07-14-2021, 12:18 AM | #130 |
Rock Stacker Join Date: Jun 2020 Location: Jakarta
Posts: 55
| Re: Silent outrunner and ESC for less then $60
Upadate, cut open the heat shrink, remove the conformal coat from top of mosfet, and while at it put 2 very small heatsink. Haven't test it yet, got to be back for the online meeting. Sent from my Redmi Note 8 Pro using Tapatalk |
07-14-2021, 04:01 AM | #131 | |
Rock Crawler Join Date: Mar 2019 Location: Terrassa
Posts: 981
| Re: Silent outrunner and ESC for less then $60 Quote:
And about the capacitator a quote from a different Forum Rockcrawler.de "TINKER" Next topic: capacitors. As already explained in another thread: it has to be here! The small regulator shoots nibbles into the motor with up to 48kHz current, but to put it simply, even a Lipo battery is too "sluggish". This is where the capacitor helps. It also helps when the engine turns on its own and thus acts as a generator because the load is going downhill, for example. The motor then generates voltage which can blow the controller backwards if the capacitor does not voluntarily accept . Last edited by themountain; 07-14-2021 at 04:06 AM. | |
07-14-2021, 09:09 AM | #132 | |
I wanna be Dave Join Date: Feb 2017 Location: My mothers basement
Posts: 2,128
| Re: Silent outrunner and ESC for less then $60 Quote:
Maybe the bigger one will help though. I don't know for certain. Sent from my SM-N986U using Tapatalk Last edited by Voodoobrew; 07-14-2021 at 09:12 AM. | |
07-14-2021, 04:30 PM | #133 |
Rock Crawler Join Date: Mar 2019 Location: Terrassa
Posts: 981
| Re: Silent outrunner and ESC for less then $60 |
07-14-2021, 07:53 PM | #134 |
I wanna be Dave Join Date: Feb 2017 Location: My mothers basement
Posts: 2,128
| Re: Silent outrunner and ESC for less then $60 |
07-15-2021, 03:48 AM | #135 |
Rock Crawler Join Date: Mar 2019 Location: Terrassa
Posts: 981
| Re: Silent outrunner and ESC for less then $60 |
07-15-2021, 05:28 PM | #136 |
I wanna be Dave Join Date: Feb 2017 Location: My mothers basement
Posts: 2,128
| Re: Silent outrunner and ESC for less then $60
I didnt mean to say it was bad Sent from my SM-N986U using Tapatalk |
07-16-2021, 05:45 AM | #137 |
Rock Crawler Join Date: Mar 2019 Location: Terrassa
Posts: 981
| Re: Silent outrunner and ESC for less then $60 |
07-24-2021, 02:44 AM | #138 |
Newbie Join Date: Jul 2021 Location: INDONESIA
Posts: 6
| Re: Silent outrunner and ESC for less then $60
best esc firmware thank you bro, very helpful Sent from my Mi A2 using Tapatalk |
07-24-2021, 03:49 AM | #139 |
Newbie Join Date: Jul 2021 Location: INDONESIA
Posts: 6
| Re: Silent outrunner and ESC for less then $60
can anyone help after the forward lever is full, immediately the full backward leverhttp://cloud.tapatalk.com/s/60fbe19e...724-WA0018.mp4 Sent from my Mi A2 using Tapatalk |
07-24-2021, 11:19 AM | #140 | |
I wanna be Dave Join Date: Feb 2017 Location: My mothers basement
Posts: 2,128
| Re: Silent outrunner and ESC for less then $60 Quote:
Sent from my SM-N986U using Tapatalk | |
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