Re: a good use for a HP 7475A

Hi Henry,

I do not have the driver, but.... (love that but)

http://groups.yahoo.com/group/Homebrew_PCBs

is a group that discusses those things. There are a few posts of
people who wrote their own drivers, so I would think there is
sometone there who can be of help.

Dave

--- In CAD_CAM_EDM_DRO@y..., "Henry H. Armstrong" <hharms@p...> wrote:
> 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@p...
>
> ----- Original Message -----
> From: "dave_ace_me" <davemucha@j...>
> To: <CAD_CAM_EDM_DRO@y...>
> 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...
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> >
> > OFF Topic POSTS: General Machining
> > If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to
reach it if
> you have trouble.
> > http://www.metalworking.com/news_servers.html
> >
> > http://groups.yahoo.com/group/jobshophomeshop I consider this
as a
> sister site to the CCED group, as many of the same members are
there, for OT
> subjects, that are not allowed on the CCED list.
> >
> >
> >
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> > List Mom
> > List Owner
> >
> >
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> >
> >