Can anyone tell me why these motors have this noise? My old motors (I think racestar? Evolve) where super quiet. These new motors have a loud gravelly whine noise like a zipper. Almost like something is rubbing internally. Seems to only make this sound once the belts and wheels are connected. I can hear it even when turning the wheel by hand with the ESC off.
I tried upgrading to FW 6.02 (Stormcore) but it tried to kill me when the throttle randomly jumped to max and biffed me off. Ripped up my arms pretty bad. Noise is still present, so Iāll go back to FW 5.03.
Video of noise, with bonus get-off when it got all angry on meā¦
Thanks for that. Some motors are just noisy, I guess. If anyone can point me in the direction of a motor brand that is known to be silent, that would be great.
Downgraded to FW 5.03 and went for an hour ride, no throttle problems so Iāll stick with it.
Slight variations in how the shaft is jacked by grub screws causes some noise. I get shing noises sometimes, from the shell zinging the insides. And once per revolution slight locomotive sounds. Best I could suggest is take the shaft out, and retorque the grub screws, while spinning the motor, to get it centered as much as possible.
Check just noise of motor belts free. If You would record just motor. In this case can be sound influenced by lot of factors unclear for us. To be honest do not understand this crazy race to have absolutely silent board. Iam ride also flipksky 140kv 6374 motors on chain and due to sound I avoided lot of dangerous situations in city. Check my sound with chain.
Yeah I understand how pedantic it sounds. Reason Iām asking is because I havenāt had a lot of experience with different motors so I donāt know what to expect - or what sounds wrong. It also seems to be affected by the motor case rotation like a pulsing zipper/rubbing sound. Maybe even 'locomotive" as Skatebored mentioned. Somethingās not right.
The contrast between my old motors and these has me questioning the noisy operation, also. I suppose Iām not used to it, and prefer to not sound like a bee on meth when putting the power down.
Iāll stand up for flipsky and maytech this one time. Hardened motors with better high temp epoxy, magnet retaining spacers, curved magnets with potting are the more or less the standard now. Great marketing to say itās āBattle Hardenedā, no shit, should have always been.
Sometimes you can suck in a ferrous pebble or some metallic grit in the motor and it will erode or breaks magnets and they will sound normal at slower speeds when the magnet fragments are firmly held to the can, even with broken epoxy.
Higher speeds and abrupt accells and decels over come the magnets and they touch the stator and it makes clicking or an unusual hum.
Open your cans, pull the stator, and inspect (sometimes you can kinda fix it). give that remote and receiver placement a once over too.
Thanks for the tips. Iām reluctant to pull the motors apart as they are brand new, so I figure itās either my install or they sound like this from the factory.
Remote is Trampa Wand with FW1.2. Perhaps there is an update to go with VESC FW6.02 but I havenāt checked yet, donāt have their module for flashing.
Downgrading back to 5.03 firmware seems to have fixed that. Maybe my remote needs updating. Not real keen on finding out right now as the skin on my elbows hasnāt grown back yet.
Iāll be testing the next firmware upgrade with full armor.
I havenāt seen complaints about RF cuts from the wand, but consider where you put the receiver. I try no to put receiver under my rear foot. ā¦ or under carbon fiber.
maybe failsafe behavior is sus? I donāt know if itās a thing for the wand. But other remotes can getcha that way. Someone on a MTB in Europe will set us straight.
Iām a week ahead of you skin wise. Taking off a circle clip to do maintenance shouldnāt void a warranty, (but there was no warranty all along)
I donāt expect support from Flipsky either. Thatās a solid scrape up
Fairly sure it wasnāt signal loss as Iām familiar with that, it will usually hold itās current throttle position until it gets connected. After crashing out I flipped the board over and gave a few pumps on the throttle while holding the remote close to the underside. I was able to get it to jump to full throttle a couple times again.
Thought Trampa had involvement in VESC development? Donāt see any updates to Wand FW over on github either.
Love the build, i also always love how @Evwan feels like pkps cant do āhisā style of turning without bindings or feel good on street. They feel fantastic on street (ive ridden both apex airs and trampa irs) still love u tho @Evwan
