Re: Trouble with stepper motor

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Article #466

#466

From: Don Mathis
Date: Fri, 21 Aug 1992 18:46

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For those who were following this thread,  I found my problem.

My batteries weren't delivering enough current to the motor.  Simple
enough.  It turned out that my stepper motor needed 1 amp per phase,
and the batteries were supplying far less than that.  Since for
stepper motors, torque DECREASES as rpms increase, the motor did not
have enough torque to overcome its (slight) internal friction at high
speeds.  That is why the motor would do progressively worse at high
speeds.

-Don Mathis

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Message-ID: <1992Aug21.184624.11443@colorado.edu>

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References: <1992Aug14.214916.4173@colorado.edu> <1992Aug18.004644.9134@ttinews.tti.com> <Bt8JzG.1D4@zoo.toronto.edu>

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From: mathis@tigger.cs.Colorado.EDU (Don Mathis)
Newsgroups: comp.robotics
Subject: Re: Trouble with stepper motor
Message-ID: <1992Aug21.184624.11443@colorado.edu>
Date: 21 Aug 92 18:46:24 GMT
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