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Is there a way to convert a hobby DC motor into a servo motor? Answered

is there any instructions to build a servo motor woth a DC motor.?

3 Replies

rickharris (author)2011-04-24

Whereas this can be done - and may be worthwhile if you need a particularly powerful servo or a particularly small unit BUT it's hardly worth while. Just for the mouldings and mechanics alone your going to be struggling to make/buy them.

Servos cost very little in actual fact.

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steveastrouk (author)2011-04-24

Well, yes. The motor is generally geared down, and the final shaft has a potentiometer attached to it, to tell the electronics where it is. An amplifier is connected to the motor, and basically, the diffference between a voltage representing the demanded position and the signal from the pot is amplified and used to drive the motor.


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