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If there is interest I will put up the HP G/L code on one of my web-
pages. HP/Agilent provides a little support for these old, workhorse
products, but not much. I also have a "fix" for converting the Gerber
output produced by Ultiboard to something which will plot on an
HP7475 in minutes instead of hours.

The old serial plotters go for a few tens of dollars on EBay.

Jack

I think I missed something- what HPGL code are you
talking about?

I have a couple of those old HP plotters, both serial.
Thought that might be a good place to start for making
an engraver, use the electronics to drive beefier
drive transistors, steppers, and mechanics to move
something like a Dremel.

Steve

--- caveteursus <j.walton@...> wrote:

If there is interest I will put up the HP G/L code
on one of my web-
pages. HP/Agilent provides a little support for
these old, workhorse
products, but not much. I also have a "fix" for
converting the Gerber
output produced by Ultiboard to something which will
plot on an
HP7475 in minutes instead of hours.

The old serial plotters go for a few tens of dollars
on EBay.

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Hi Jack,

Yes! I'd be interested. I still have my HP7475 from '85, although I
use it only occasionally. Laser printers do such a good job on
schematics now! What "code" do you have? I hate to see them piled up
as surplus, makes me want to take them home with me, and give them a
good home!

All things HPGL would be welcome!

Alan KM6VV


caveteursus wrote: