Re: I want to upgrade to servors

I have camtronic controller and its deliver 2amp which is the same
current as the motor.. so I do not understand why they run too slow..
if you try to run them faster the axis of the stepper will not move,
I think that is what people called "LOCKING UP"..

--- In CAD_CAM_EDM_DRO@y..., Jon Elson <elson@p...> wrote:
> luisguillermo98 wrote:
>
> > you are getting 100ipm. I am getting just 6ipm.. my steppers are
> > 250oz eastern air devices. I do not understand why they are too
> > slow.. are your servos acurate enought to make small tiny
parts?...
>
> I have resolution of .00005" (That's 50 uInch) on the X and Y, and
> .000025" (25 uInch) on the Z. I have high-precision ballscrews
> from a circuit board drilling machine that are accurate to .0001"
> over the entire length. I have made some parts with .020" end
mills,
> and usually things mike out to +/- .003" overall, most of which is
> tool deflection, especially with small end mills. I think I need to
> work on the condition of the ways before I will do better.
>
> As for slow steppers, the driver is usually the key. Some drivers
> just do not perform well at high speeds. If you have a R/L
> driver, that will perform very badly. A chopping-type, bipolar
> driver is usually the best. Also, low inductance motors generally
> perform much better.
>
> Jon