Re: Interface. Gauging interest.

>
> Mariss Freimanis wrote:
> >> ballendo wrote:
> >>
> >> What we truly need is a usb EQUIVALENT of the parallel port.
> >>
> >
> > That's just not possible for CNC programs that output step and
> > direction signals from a parallel port. Step pulses have timing

> > the microsecond range.
>
> You are of course presuming that microsecond precision is

> There are plenty of motion control tasks that could be performed

> less precise pulse timing. The availability of a cheap, bit-

> USB parallel port would enable control of such tasks from a wider

> of hardware. It doesn't take much imagination to see a variety of
> possible configurations and applications for such a device. I

> that it's probably more 'neat' than 'useful' though.
>
> Applications that require higher performance (of the sort for which

> might be inclined to use a Geckodrive) probably wouldn't be driven

> such a device and likely would justify spending a bit more to get

> hardware.
>
> Dave K
>