Re: [CAD_CAM_EDM_DRO] Encoders on stepper motors.

Art,

I don't think that you are missing anything. Not many stepper systems have
encoders. The main advantage that some of my customers would like is a way
for the system to know if the bit ran into an object and stalled during
unattended operation. I have one customer who runs his cnc router all night
(unattended) doing some complex wood carving. He wishes that he had
steppers with encoders.

Bob Campbell

----- Original Message -----
From: "Art Fenerty" <fenerty@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, March 25, 2001 2:19 PM
Subject: [CAD_CAM_EDM_DRO] Encoders on stepper motors.


> Hi All:
>
> I might be missing something here. I have heard alot about encoders on
stepper motor systems increasing accuracy. Am I wrong or is the only purpose
of an encoder in a stepper
> motor system only used in the case of a stepper missing pulses? If the
stepper never misses a pulse, the encoder does not do anything. The motor
can only be positioned to a multiple of its stepping resolution, right? If a
motor misses pulses, isn't this an indication of a poorly powered stepper
> system? I get the strange feeling I'm missing something obvious.
>
> Thanks,
> Art
>
>
> [Non-text portions of this message have been removed]
>
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