Homebrew PCBs

Maybe it sounds crazy for your ears, but in the comunist era we have used
for XY plotters a home made glass pen, very similar with the Staedler or
Rotring pens, and the result was quite amazing, the same resolution as a
0.5 standard pen. You need just a bunsen gas burner, a vial and two right
hands to pull the glass.
The key for continuous traces was keeping down the pen (on the printed
surface) as much as possible.

best regards,
Vasile
http://sudrucan.netfirms.com

On Sat, 24 Apr 2004, grantfair2001 wrote:

> Hi Stefan (and listmembers)-
>
> In an earlier post you said you had tried the Staedtler ink with a
> plotter pen, and it had failed to plot to PCB very well. You advised
> against trying this.
>
> In spite of your experience, I would like to try this, and I am
> curious what you specifically used (so I can avoid your errors, if
> there are errors). The one reference on the web I could find said "You
> have to use a 757 PLx CS refillable plotter point.It is a
> Tungsten-carbide plotter point with a cross grove to allow for more
> ink flow. The ink is fairly thick."        http://eeshop.unl.edu/pen.txt
>
> I plan to use Staedtler 485 523 sar-9 ink (this I have now). Finding
> an inexpensive grooved tungsten-carbide plotter pen is turning out to
> be a challenge. The cheapest I can find is about US$64, which is too
> expensive for experimenting. Anyway, what plotter pen did you use?
>
> Can anyone suggest an inexpensive source for this kind of pen?
>
> (I don't have a plotter but plan to make my own).
>
> Grant
>
>
> --- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
> <stefan_trethan@g...> wrote:
> [snip]
> >
> > Now i use TT and it is really WYSIWYG.
> >
> > Not that i wouldn't encourage plotter experiments, i just want to
> say it
> > seems like a pretty
> > good idea but for me it didn't work out at all.
> >
> > ST
>
>
>
>
> Be sure to visit the group home and check for new Bookmarks and files:
> http://groups.yahoo.com/group/Homebrew_PCBs
> Yahoo! Groups Links
>
>
>
>
>