Re: [CAD_CAM_EDM_DRO] Erratic stepper question.

I seen that happen once before and it was due to a poor connection somewhere
between the output of the fets and the stepper motor connection. Recheck
those solder joints and carefully inspect the mechanical connections at J5
and at the stepper motor.
Dan
-----Original Message-----
From: andesign2@... <andesign2@...>
To: CAD_CAM_EDM_DRO@yahoogroups.com <CAD_CAM_EDM_DRO@yahoogroups.com>
Date: Saturday, March 31, 2001 11:07 PM
Subject: [CAD_CAM_EDM_DRO] Erratic stepper question.

>I have recently finished assemblying my 3 axis 5amp stepper driver
>from Camtronics and my homemade power supply. I downloaded the CNCPRO
>demo and ran each stepper motor in air. I noticed that at certain
>speeds the motors shuttered, especially at very low speeds. I also
>loaded the example 3D arc G code file that came with the software,
>when I tried to run it the motor shuttered a couple of times at low
>speed. As the speed ramped up sometimes the motor would take off
>really fast in the wrong direction. I am running in half step mode
>and I believe all of my software and driver configurations are setup
>correct. Could anyone please tell me if I'm missing something.
>
>The motor details:
>
>Superior Electric
>Slo-Syn Synchronous/Stepping Motor
>Type= M091-FD-426
>150oz.in
>200 Steps
>2.6V 3.1A DC
>6 wire
>
>I bought these motors at C and H Sales.
>
>Thank You,
>
>Jason
>
>
>
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