> http://www.willcoxonline.com/PCBplotting/main.html
> > http://www.qsl.net/ve2emm/pcb/pcbe.html
> > > "Circuit Board Plotting 101. Curt describes how to draw PCB
Oh guys. I did this 15 years before :-)
But the process isn't stable. Very often the tip smears as it reaches
earlier drawn traces or pads (T-connections) or thicker traces that
needs to be drawn with parallel lines. After tryinig a lot different
pens (Staedler I used too) and several costy steel-tips with lots of
different inks I switched back to photoprocess. May be my plotter is
too fast.
By the way: The best "ink" I used was colophonium in isopropyl
alcohol. It is a good and cheal resist and you don't have to remove
it, just solder. And if you draw the lines with a tinned solder iron
the board is quickly tinned and stable for years. there is only one
small disadvantage with colophonium alcohol ink: it is very
transparent. Therefor i mix one or two drops of staedler refill ink.
You may try this... Nowadays I prefer toner transfer.
Later on I want to try to print with a modded Lexmark Optra R direct
to copper (by removing the fixer unit) and fix it in the oven. I'm
sure it will work, but I don't have the time for such playing now.
next year perhaps :-(
May be someone trys this earlier
Martin
Lexmark Optra R or L is a 1200dpi printer that can print in a very
even tray and is capable to give lot toner for very dark prints.