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03-17-2008, 09:03 AM
| #1 |
| Quarry Creeper Join Date: Mar 2005 Location: hudson (the big city)
Posts: 267
|  strange sound from esc or drivetrain???
not sure if i'm in the right topic thread but i have a few questions. i just put together a bender sw2 with locked pede tranny, ax10 axles, ax10 spur and pinion, hh crawlmaster sport brushless, cc sidewinder. i'm getting a really high pitch squeal sound from either the drivetrain or esc, i'm not sure which, when i barely give it throttle from a stand still. is this a common thing? is there something wrong with my set up? any help would really be appreciated. thank you...
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03-17-2008, 09:09 AM
| #2 |
| owner, Holmes Hobbies LLC   Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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That is most likely the noise that the motor makes when being driven by a Castle ESC. They emit a high pitch beep which changes as the throttle changes.
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03-17-2008, 09:17 AM
| #3 |
| RCC Addict Join Date: Jun 2007 Location: San Antonio, Tx
Posts: 1,093
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could be a bad mesh on your gears
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03-17-2008, 09:21 AM
| #4 | |
| I wanna be Dave Join Date: Nov 2005 Location: Crawler practice!
Posts: 2,104
| Quote:
but he said it drives so it cant be that bad if it was too tight that motor and esc would let him know if it was to loose their would be nothing left of the spur gear! | |
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03-17-2008, 09:35 AM
| #5 |
| Quarry Creeper Join Date: Mar 2005 Location: hudson (the big city)
Posts: 267
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yeah, my gear mesh is okay. has a slight bit of play to it. so that end is covered. so it's probably nothing to worry about? if i just touch the throttle slightly where it's not enough to move the truck it will make the sound.
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03-17-2008, 09:45 AM
| #6 | |
| I wanna be Dave Join Date: Nov 2005 Location: Crawler practice!
Posts: 2,104
| Quote:
brushless makes a lot of noise its just the motor and esc communicating with you Nothing to worry about!   | |
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03-17-2008, 09:49 AM
| #7 |
| Quarry Creeper Join Date: Mar 2005 Location: hudson (the big city)
Posts: 267
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thank you guys for the help. puts my worried mind to rest. thanks again...
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03-17-2008, 04:25 PM
| #8 | |
| Quarry Creeper Join Date: Jun 2007 Location: Sacramento
Posts: 338
| Quote:
why do they make that noise, is it a physics thing or does Castle design them to make that noise on purpose? | |
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03-17-2008, 07:38 PM
| #9 | |
| I wanna be Dave Join Date: Nov 2005 Location: Crawler practice!
Posts: 2,104
| Quote:
some motors are real quiet like the original revolver on the mamba max that was a quiet set up  | |
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03-17-2008, 08:15 PM
| #10 |
| owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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The motor is a speaker, the ESC is the amplifier that tells it what to do. The startup of Castle's firmware uses audible frequencies to keep the motor in sync with the ESC, and is a major part of the startup routine.
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03-17-2008, 08:37 PM
| #11 |
| Quarry Creeper Join Date: Jan 2007 Location: I live in my own world,they know me here
Posts: 402
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The first time I heard my Hyperion/Max combo it made some noises I thought were bad and it turns out its a brushless thing.Creepy for sure but I got used to it
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03-19-2008, 12:57 AM
| #12 |
| Pebble Pounder Join Date: Dec 2007 Location: Torrance
Posts: 115
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That noise is enough to keep the dogs away from us when we're crawling at the park!
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