| I'm surprised you haven't let the smoke out of that servo... It's designed | to operate on 6VDC max... It may work a while as long as you're not using | the internal circuitry.. But I'll bet stall current will cause a meltdown | in short order...
Well, we do often take 6V speed 400 can motors, and run them at 12 volts -- and do so for many minutes at a time. The motors don't last forever, but they don't usually burn up in a few minutes either.
As for stall current, stalling your servo for several minutes at 6 volts would probably cause a meltdown too -- just a slower one. Three watts (0.5 amps x 6 volts) may not sound like much, but when it's all being generated in that tiny motor with next to no cooling ... it won't last long. (The 0.5 amp figure is a rounded off approximation of the 3003 stall current somebody just measured.)
What I've always wondered about is *why* digital servos will create more torque. Higher power consumption, especially while idle makes sense, as the servo will `whine' as it tries to find the very center, but higher torque doesn't make much sense. Seems to me, if you take a given servo mechanism, with a given motor and a given geartrain, the maximum torque produced should be the same no matter what sort of electronics drive that motor.
Or do digital servos typically just come with bigger motors? (so it's not the `digital' part that gives more torque -- it's the bigger motor that comes with them?)