Re: 3D printer, motor reversing

Servo driver should still have a direction bit you can toggle?

B

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Graham Stabler"
<grezmos@...> wrote:

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Alan KM6VV" <KM6VV@>

wrote:

> >
> > Hi Graham,
> >
> > Just a thought, isn't the paper feed motor a stepper? Then

wouldn't the

> > driver for the stepper likely have a direction input? It may be
> "tied low"
> > or something, but it may be worth looking for.
> >
> > Alan KM6VV
>
> Origionally I was using an epson which did have a stepper on the

paper

> feed for just that reason however it turned out the controller was
> serial command based and there were no step and direction signals

to

> intercept.
>
> The HP uses a DC servo motor and an encoder for both print head and
> paper feed.
>
> Graham
>