Re: [CAD_CAM_EDM_DRO] a good use for a HP 7475A

For Dave_ace_me:
Do you have the Windows DRIVER for these HP 7475's? I have one and wish to
use it for PCB layout. I have been reading that there is a plotter driver
included with MS Windows 95, 98, etc. system CD. However, I have not been
able to find it. I go to "add new printer" in the printers selection from
"START". There, I select HP and then Plotters, then 7475. All is well up
to this point, but; the system says it cannot find "hpplot.drv". Neither
can I find it doing manual searches on the CD. I have searched my Windows
95 CD and my Win98 SE CD to no avail. Where does one find this driver?????
Any help is greatly appreciated.
Henry

Address me OFF LINE if you prefer at: hharms@...

----- Original Message -----
From: "dave_ace_me" <davemucha@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: 05 May, 2002 5:39 PM
Subject: [CAD_CAM_EDM_DRO] a good use for a HP 7475A


> One good use for an old plotter is to draw circuits for etching
> circuit boards. a Sharpie or better pen will place the ink/resist
> before etching the copper.
>
> this is one of the most common used for these old units. at least
> among hackers.
>
> just for kicks, you might be able to drop some acid from the pen. The
> kind that cuts glass and etches glass. I think some sort of floride
> acid ??? real nasty stuff though. eats through lots of stuff and is
> expensive.
>
> I have 5 myself and they just are taking up space. The motors are
> too small for any cutting use. IMO.
>
> Dave
>
>
>
>
> --- In CAD_CAM_EDM_DRO@y..., "eggpoodle" <eggpoodle@y...> wrote:
> > 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...
>
>
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