Re: [CAD_CAM_EDM_DRO] Do I have to go to servos?

kdoney_63021 wrote:

>I finally got my mini mill tuned in and I was running a circular
>pocket program; everything was going great until Z got to -.092 and
>then the X and Y started to wander.
>

What does wander mean? Did the motors just start turning randomly?
Did they all drift some amount and then start moving correctly again?
I can't answer for Mach2 (I think that's what you are running, now).
Maybe you should send your program to Art, or another Mach2 user, and
see if it causes a problem on their machine, too.

Since you are in Fla, are you sure your power is good?

If it was working fine up to now, why do you assume steppers can't handle
simple machining tasks? Have you run this same program before without
a problem? Does it cause a problem in the same place with this program
if you run it again?

What I'm saying here is that the motors are the LEAST likely to be the
cause of this. But, you might have a chip stuck in the ways, and a stepper
system will blindly go on rattling and pushing without warning the computer
there's a bind-up. Even a common hobby-level servo system may do no
better in some cases, although a Gecko 320/340 will fault after 128 step
pulses without movement.

Jon