Pappy
Rock Crawler
Does brushless motors and crawling go together? Everything RC is in the brushless craze and I wandered if crawling used them too?
-
Welcome to RCCrawler Forums.
It looks like you're enjoying RCCrawler's Forums but haven't created an account yet. Why not take a minute to register for your own free account now? As a member you get free access to all of our forums and posts plus the ability to post your own messages, communicate directly with other members, and much more. Register now!
Already a member? Login at the top of this page to stop seeing this message.
Brushless
- Thread starter Pappy
- Start date
letus
Newbie
A lot of guys like the brushed motors for smoothness. I'm new to this whole thing, and I am definitely still learning to play with my crawler. I have a brushless motor in it, and so far I am happy enough with it.
clockworks
Rock Crawler
I'm using a Novak Goat sensored brushless setup. I'm impressed with how controllable and smooth it is.
Get a sensored motor and ESC and you'll be happy. Avoid sensorless.
Get a sensored motor and ESC and you'll be happy. Avoid sensorless.
Pappy
Rock Crawler
It sounds like the brushless are really powerful, so I was figuring maybe they could provide a big hit for quick leaps across gaps on rocks or something.
rock addict
Quarry Creeper
brushless is your best bet. Check out a castle sidewinder with a holmes 1000kv motor, smooth sailin myfriend
sensorless is simpler and less expensive.
Sensored has a smoother startup if the motor is constructed right.
Sensored has a smoother startup if the motor is constructed right.
clockworks
Rock Crawler
To add to what John said, sensored brushless uses a physical sensor PCB fitted to the back of the motor. This lets the ESC know exactly where the rotor (moving part of the motor) is positioned, which way it's turning, and how fast it's turning. As soon as the motor starts to move (possibly even before it starts moving), the ESC knows exactly what's happening, so control is instant and smooth.
A sensorless setup still needs to know what the motor's doing so that it can switch the coils to make it run properly. It uses back-EMF from the coils instead of a physical sensor. At low speeds, not enough back-EMF is generated, so the ESC isn't in control. The ESC sends pulses through the motor coils, making it spin back and forth, until it turns fast enough to generate the signals it needs. This happens each time you stop and start off again.
Makes for poor low-speed control - not good for crawling.
sandblaster87
Quarry Creeper
i have a goat & dont really like it...i myself like brushed motors better..
