Attaching a potentiometer to a motor to stutter

Programming Support ROBOTC Tech Support
1

Hey,
I want to attach two motor shafts to potentiometers so that the motor would only travel a very short distance back and forth in an oscillating motion. (think windshield wipers or walking legs) .
Any help would be greatly appreciated. I am thinking something like this…

{repeat(forever)
{

startMotor(motorPort, speed);
untilPotentiometerGreaterThan(position, sensorPort);
startMotor(motorPort, -speed);
untilPotentiometerLessThan(position, sensorPort);

}
}

3

(best way possible to do it)

4

Are you trying to achieve a rapid oscillation or a more slow rate?

5

I would try a simple P-loop,

6

rapid … like a jitterbug

7

A kind of walking machine… the motors needs to go a very short distance then return … oscillating
I am using VEX natural languagePLTW

8

I think you should use a crankshaft to produce a reciprocating motion like in a car engine.

Rapidly reversing a motor will make it overheat quickly, and if your Walker’s legs are too heavy, you wont be able to achieve rapid oscillations at all

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