Motors and Servos Question
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I am modifying a servo to work as a motor for my robot, and I have several
questions pertaining to the subject.
Question 1. Is the motor inside the servo a stepper motor, or is it a DC
motor ( i.e. Non-Stepper Motor ) ?
I can see the circuitry inside the servo. In a unconverted servo, how does
the motor know how far to turn?
Question 2. If I convert the servo into a motor for my robot, is a shaft
encoder the only way to figure
out how far I have moved? I assume that if I were to use a stepper
motor I could count the steps to get
my position. Is there a particular advantage of using a DC motor as
opposed to a stepper motor ?
Is there particular projects that it would be better to use one over the
other? On my next robot, I want
to experiment with positioning. For now, It will probably turn when it hits
something.
Question 3. My friend is also build a robot. His will be a mower-bot. So
he wants some larger motors.
I've seen messages posted about using windshield wipper motors, etc. to
drive the robot. We have not
been very successful in finding larger size motors on the web. Are most
people getting theirs from a
salvage or junk yard?
Question 4. Are most people using something like MotorMind to control the
motors, or are they writting
the Stamp program to be like an event driven program that monitors the state
of different I/O pins?
questions pertaining to the subject.
Question 1. Is the motor inside the servo a stepper motor, or is it a DC
motor ( i.e. Non-Stepper Motor ) ?
I can see the circuitry inside the servo. In a unconverted servo, how does
the motor know how far to turn?
Question 2. If I convert the servo into a motor for my robot, is a shaft
encoder the only way to figure
out how far I have moved? I assume that if I were to use a stepper
motor I could count the steps to get
my position. Is there a particular advantage of using a DC motor as
opposed to a stepper motor ?
Is there particular projects that it would be better to use one over the
other? On my next robot, I want
to experiment with positioning. For now, It will probably turn when it hits
something.
Question 3. My friend is also build a robot. His will be a mower-bot. So
he wants some larger motors.
I've seen messages posted about using windshield wipper motors, etc. to
drive the robot. We have not
been very successful in finding larger size motors on the web. Are most
people getting theirs from a
salvage or junk yard?
Question 4. Are most people using something like MotorMind to control the
motors, or are they writting
the Stamp program to be like an event driven program that monitors the state
of different I/O pins?