RE: [CAD_CAM_EDM_DRO] DC motor as replacement for Stepper motor

but how? can you help me with this actually we're running out of funds for
our thesis and the cost of stepper motor here in the philippines is quite
expensive. so when we got an idea that dc motor can be interfaced in such a
way like the stepper we agreed to use is but we don't have any idea on how
to do it. please help!!!

ramel

-----Original Message-----
From: ccs@... [mailto:ccs@...]
Sent: Wednesday, January 23, 2002 12:39 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] DC motor as replacement for Stepper motor

> hi to all! just want to ask if it is possible that we can use DC and
> create a ckt board for it so it can act as stepper motor? if possible
> where can i find resources on this.
>

Ramel,

Yes, an appropriately chosen DC motor equipped with a rotary encoder
for position feedback can be used as a servo motor. And there are
servo drives (such as the G320/G340 from Geckodrive, whose designer is
on the list here) which take the same step & direction inputs as
stepper motors. Done right, this can results in much higher
performance for much lower cost than that of the large stepper
motors needed for substantial machine tools.

Chris Stratton


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