Re: [CAD_CAM_EDM_DRO] Re: AC servo motor

In a message dated 10/3/2006 12:26:13 P.M. Eastern Daylight Time,
rick@... writes:

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Horace, T.L.Ho"
<skyfroghorace@...> wrote:

>
> I know this topic must have been discussed before, but I've visited

one

> small CNC maker here even his products use small AC servo motor. Why
> bother ? We want the problem of brush maintenance be gone for good.

Any

> suggestions ? Thanks in advance
>
> Horace

Horace:

AC servo motors don't use brushes as you may already know. However, they
are usually quite expensive. All of the major CNC machine tool builders that I
know use AC servos on their products because they are much more reliable
than the older DC servos and far more accurate and reliable than steppers.
However, these machines usually cost over $100,000.00 each. I am sure there are
some lower cost machines that use them as well. I would think, if you were
doing a hobby machine, you might want to start with less expensive hardware.
Yaskawa is one of, if not the best, of the AC servo drive manufacturers.

Hope this helps some,


Randy Abernathy
4626 Old Stilesboro Road NW
Acworth, GA 30101-4066
E-mail: cnc002@...

I furnish technical support, repair, and other related services for your
industrial woodworking machinery. My background as Senior Service Engineer for
the SCMI Group for nearly fifteen years with factory training, combines with
my extensive background in electronics, mechanics, pneumatics, electrical and
CNC machinery to offer you needed support for your machinery. Services
include but are not limited to the following:


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