Recently I installed Leadshine's nema 34 stepper with integrated encoder,
driver used is also from Leadshine, and it is driven by Pico system's Universal
Stepper Controller to which is also attached encoder feedback, so system is in
close loop and it works very good. One thing I like about Leadshine's steppers
with integrated encoder is that it already output's differential signals!
> >
> Many low-cost DRO scales are NOT quadrature encoders
> reporting position in real time, but some kind of
> interpolated sensor that gives several position reports a
> second. These cannot be used for closed-loop servo
> operation. So, check what sort of scale you have.
>
> See http://pico-systems.com/minimill.html for some pics
> and discussion of my minimill servo conversion.
> This is not a machine I use for general machining, (I have a
> CNC Bridgeport that is a lot more capable) but is portable
> for demos, and I also use if to experiment with motion control.
>
> I (Pico Systems) have all the hardware you need for such a
> conversion, using either brush or brushless motors.
>
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