Re: [CAD_CAM_EDM_DRO] Hp 7475 Plotter Servo's

Support is avaiable from the OEM at

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=bpp01
379

Complete pinouts of 25 - 25 and 9 - 25 cables. operating instructions and
switch settings

I think all HP pen plotters use the same serial cable. I have a 7585B 8 pin
E size plotter hooked to a LamPress Print server served by a Novell 3.12/3.2
print que. Works just fine in fact better than direct connected to a P-4
with Win 98SE.

Hugh

----- Original Message -----
From: "Alan Marconett" <KM6VV@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, September 29, 2005 10:30 AM
Subject: RE: [CAD_CAM_EDM_DRO] Hp 7475 Plotter Servo's


> Hi Vector,
>
> It could very well be a NULL modem cable that's required. I was hoping to
> find my manual last night, but failed.
>
> I still have it cabled up to one of my older computers and a serial
switch,
> so that would be a way to verify what is needed. And the dip switches
will
> be set up, probably 9600 baud for me.
>
> If the LED is blinking, then it didn't like one of your commands. You
might
> route the plot commands to a file (still 7475 format), and see what they
> look like. First char for initialization is an ESC (which doesn't print
> very well in a text file), then two more characters, like I copied in my
> email. Then possibly one or two more initialization codes, and then plot
> commands.
>
> From DOS, you can "copy" a valid PLT file to the plotter, and that is a
> basic test. Baud rate must be set up, of course.
>
> I'd be curious how you made a drag cutter out of a 7475 pen.
>
> Alan KM6VV
>
>
> > -----Original Message-----
> > From: CAD_CAM_EDM_DRO@yahoogroups.com
> > [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Victor A. Estes
> > Sent: Thursday, September 29, 2005 6:20 AM
> > To: CAD_CAM_EDM_DRO@yahoogroups.com
> > Subject: Re: [CAD_CAM_EDM_DRO] Hp 7475 Plotter Servo's
> >
> > Alan,
> >
> > According to everything I have read on the plotter a NULL Modem
cable
> > is
> > required. So I went out and bought a new serial cable with a null modem
> > adaptor. Still does not work. This was after I tried making my own
cable
> > based on the pin outs that I had read would work, no joy. I set the
baud
> > rate, parity, stop bits, and everything on the dip switches just as I
had
> > read was the thing to do from several different web sites on turning a
> > 7475
> > into a vinyl cutter. I'm running windows xp and the driver for it is a
> > HPGL/2 driver which I understand will not work. Has to be a straight
HPGL
> > driver, windows 3.1, 95, and 98 have it. But I thought I would try
anyway
> > to see if I could get any response fro the plotter. When I failed to
get
> > it
> > to respond out of windows xp I switch to the DOS window and tried to the
> > direct commands by activating the COM1 port, still no joy. So I am
still
> > at
> > a loss here. In my original post I did not mention that I made a real
> > neat
> > drag knife holder for the plotter out of one of the original pins. I
want
> > to try vinyl cutting with it. If I cannot get that to work then I want
to
> > take it apart and make the eggbot.
> >
> > Victor
> > ----- Original Message -----
> > From: "Alan Marconett" <KM6VV@...>
> > To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> > Sent: Wednesday, September 28, 2005 6:01 PM
> > Subject: RE: [CAD_CAM_EDM_DRO] Hp 7475 Plotter Servo's
> >
> >
> > > Hi Victor,
> > >
> > > Are you sure a NULL MODEM cable is required? I have a 7475A plotter.
I
> > > probably haven't plotted with it for 10 years. There is also a switch
> > for
> > > baud rate, as I recall. Insure that you are talking the proper baud
> > rate,
> > > parity, stop bits, etc. (which I'm sure you've already checked).
> > >
> > > I wouldn't mind finding a 7475 plotter that I could experiment with as
> > you
> > > describe! I even started an EGGBOT project a few years ago.
> > >
> > > Alan KM6VV
> > >
>
>
>
>
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