masterfo

How much turns does a brushless motor need to move a 20lb car?

Is 21.5 turns sufficient?

ThePanda

iTrader: (68)

it will be very very slow. Usually applications in which large applications are used the motor will be rated in kv.

the rc guy

turns kinda refers to a 1/10 scale ...id go with a large size motor ... are you running thru a gear box..? a 2200kv 550 or larger if you think you need...with the correct gearing will move a 20 lb truck or more... esc? cells? battery type?

RotorTruck

iTrader: (2)

I think you'll need an 1/8th scale 4 pole rotor motor like this:
http://www.smc-racing.net/index.php?...y&path=112_125

EbbTide

iTrader: (39)

Your phrasing the question wrong if you are still using that 6 motor design. One 21.5 motor wouldn't dream of pulling 20 pounds on its own. We've been over that before.

masterfo

please help im desperate right now, proj due in less than a week, and nothings working. i installed 2 21.5 motors on a small wooden board and when i run the motors, the esc beeps once and then stops. i was wondering if this motor has the torque to do anything

EbbTide

iTrader: (39)

The only thing I can think is that you may not have calibrated the ESC to know the full throttle and full brake positions (in the manual). Otherwise I don't see why the motors wouldn't at least move. If the item is too heavy at worst the motors/ESC would overheat and die. But keep in mind, what you're doing is experimental. None of us will really have an answer. We can just suggest things and you can try them. It's all trial and error.

ThePanda

iTrader: (68)

did you calibrate endpoints on the radio system?