Re: M57-102 < - - - - > PC

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...> wrote:

>
>
> m0nkey0ne wrote:
>
> >--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...>

wrote:

> >
> >
> >>m0nkey0ne wrote:
> >>
> >>
> >>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>The information I found was in the obsolete section at
> >>>http://www.compumotor.com/manuals/literature_user.htm . They

had

> >>>that particular motor number listed. The information did not

tell

> >>>
> >>>
> >me
> >
> >
> >>>much...more of a user manual rather than installation sheet.
> >>>TA Randy
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>The step/direction inputs are given on Page 17 of that manual.
> >>It is a stepper after all. Most confusing that a later series of
> >>servo motors alse used the M series designation.
> >>
> >>Jon
> >>
> >>
> >
> >With this information is it just a matter of using a PC to go high
> >(or low) for direction and then pulse a certain number of times
> >through a designated pin on the parallel port to get the right

motor

> >to turn the right direction the right amount? If so, I am lacking
> >software or program to do this. Can it be done with VB?
> >
> >
> In theory, yes. But, it gets much more complicated than that, as

you need

> to smoothly ramp up the step rate, and then ramp it down at the end

of the

> move. If it is a 2-axis move, then you need to ramp up both axes

in a

> coordinated manner, or the line won't be straight.
>
> You would do best to get a CNC program that will support the type of
> operation you need.
>
> Jon

Hence the big bucks for MasterCAM and such. Do you have suggestions?
When all of this comes together it will go on a small mill. Is there
additional hardware needed to connect to the PC? I would expect that
different pins would control different axis's up to a limited number
without additional hardware.

Randy