Grumbling servo following swap from one to another

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i replaced micro servo nylon gears rated 1.2kg/cm - mini servo metal gears rated 2.2kg/cm.

both standard servos, not 360deg or continous rotation.

with previous servo, tell it:

code: [select]
servo.write(180);
with new servo, grumbled massively (as if had hit mechanical stop). changed code
code: [select]
servo.write(150); , well.

i still don't understand why should different between servos! :) mean can use
code: [select]
servo.write(-20); regain 20deg of travel i've otherwise lost? make sense?

this new servo "twitches" @ idle (the old 1 didn't). should return or spray wd40 (as i've seen recommended here).

thanks all

how powered?


Arduino Forum > Using Arduino > Motors, Mechanics, and Power (Moderator: fabioc84) > Grumbling servo following swap from one to another


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