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Originally Posted by Billfred
Perhaps you'd be in the market for an R/C car motor? I've had good experiences with the Traxxas Stinger motor (which appears to be a standard RS-540 motor, but might not be--I don't know). I don't have the link, but I recall it going for $10-15 on Tower Hobbies. Good power on 7.2 volts, lasts forever, low maintenance, and is still pretty cheap.
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That's an excellent suggestion!! I don't know why I didn't think of it.
There are more types R/C car motors than you can imagine!! Everything from "stock" to super modified that can suck a 2100mAh 7.2vdc dry in as little as a minute. All of these motors will require a speed control, and yes, a Victor will do just fine. The one thing to understand is that very few of these motors are designed to run on 12vdc. (Although, there is a "Boat" motor that is designed for 12vdc that I am aware of.) R/C car motors are physically larger than a servo, but you will find the torque is way better. This is due to many factors: much larger and stronger magnets,
much higher current draw to name a few. They also can achieve an output shaft peek RPM in the 30K ballpark, not that you would ever need it. A motor that can do that will also cost +$50. The one that Billfred mentioned lists for $17.49 at Tower Hobbies
http://www2.towerhobbies.com/cgi-bin...er&FVPROFIL=++
It is a very good, reliable, sturdy motor. But remember, you will need to use a speed control and it won't last long at all if you dump a full 12vdc on it. (But it will
SCREAM... until it dies
)
Hope that helps!