Re: HP 7475A

Hugh:

the connections (plural) are: one HPIB, and one serial. I
understand from web sources that the wiring for the cable for the
serial is non-standard. However, having tried to find an HPIB
card, wiring is an easier task.

this all said, and taking into account the other post regarding
strength limitations of the motors, is there much of a reason to look
at these things?

Stephen

--- In CAD_CAM_EDM_DRO@y..., "Hugh Prescott" <hugh@a...> wrote:
> Are you sure about the off base RS-232 connector?
>
> It may be a HP-GPIB connector instead. Does it look like a shortened
version
> of the standard AMP 57 Centronics printer connector?
>
> Hugh
>
>
> ----- Original Message -----
> From: "eggpoodle" <eggpoodle@y...>
> To: <CAD_CAM_EDM_DRO@y...>
> Sent: Sunday, May 05, 2002 9:17 AM
> Subject: [CAD_CAM_EDM_DRO] HP 7475A
>
>
> > I am new to this group, and have interest in making a CNC for use
in
> > architectural model making and possibly wood work (canoes, curved
> > things)
> >
> > I have access to about 9 Hewlett Packard 7475A pen plotters
(11X17"
> > capacity, 6 or so pens). Are these units useful for making a
small
> > machinge, perhaps using a dremel or similar for cutter?, or are
the
> > motors too light duty for the job?
> >
> > Also, any idea what a fair price is for them if working? (they
are
> > pre-1990, and use an off-base serial connector)
> >
> > I'll watch this thread, and can be directly emailed at
hdesign@i...
> >
> >
> >