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Unread 13-10-2005, 09:48
DanL DanL is offline
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Re: Servo behavior question / advanced servo/PIC programming question

How are you getting the +/- 60 degrees part?

Quote:
Originally Posted by Al Skierkiewicz
Dan,
The way I read the specs, +/-60 degrees is the max travel from the center position. The spec sheet for travel distance/time is for 40 degrees from center to either side. It is pretty easy to couple a 2:1 gearing to give you the extra travel, external to the servo or even a double linkage depending on what your eventual need might be. Trying to fool the servo is not going to work. When you feed a PWM value to the servo it uses the internal pot and electronics to move it to a defined position (within the accuracy of the servo). The internal pot is the sensor that tells the electronics where the output shaft is.
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Dan L
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Software Engineer, Vecna Technologies