how to change servo motor PWM

[skimask]

You got it. They used to sell these with instructions to modify, now they do the modification for you.
Makes really nice rolling gizmos.

So, if you get a servo with a really tight deadband, it could be almost impossible to get the motor to stop 'cause it would always be trying to hit that sweet spot?

[mackrackit]

I have only used a dozen or so of these and have only had that problem a couple of times, but the little screw inside makes them adjustable. So it is not that big of a problem.

[skimask]

I have only used a dozen or so of these and have only had that problem a couple of times, but the little screw inside makes them adjustable. So it is not that big of a problem.

Well, that's a handy bit of information. I didn't know those types of servos were any sort of popular and/or used that much. That'll come in handy for a few things I've been wanting to mess with.

[rmteo]

Modifying R/C servos in the manner you described have been a fairly common way to get a low speed/low torque reversible motive system.