Re: two drives from one input

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "afogassa" <afogassa@y...>
wrote:

> Hi, All
> How do I set two step motors drives on one step&dir. input? can it
> be done?
>
> Thank's
> Fogassa

If you do not have buffering on the parallel port pins you stand the
chance of overloading the port by running two motor drives in
parallel. It would depend on the drive types. I think the ability
to slave an axis like in MACH2 and drive each motor from it's own
port has merit. You can setup separate home/reference switches and
the two motors will re-zero themselves in the event either were to
loss steps or position in anyway. If the motors get out of sync with
one drive it will be a problem to bet them back in sync. It will
have to be : Power off, rotate by hand and measure.